HASEGAWA Makoto

J-GLOBAL         Last updated: Nov 22, 2019 at 09:44
 
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Name
HASEGAWA Makoto
Affiliation
Chitose Institute of Science and Technology
Section
Faculty of Photonics Science, Department of Opto-Electronic System Engineering, Hasegawa Lab.
Job title
Associate Professor
Degree
(BLANK)(Keio University), (BLANK)(Keio University)

Research Areas

 
 

Academic & Professional Experience

 
Apr 2011
 - 
Today
Professor, Chitose Institute of Science and Technology
 
2000
 - 
2001
Chitose Institute of Science and Technology, Part-time Lecturer
 
2001
   
 
- Chitose Institute of Science and Technology, Lecturer
 
2000
   
 
Keio University, Part-time Lecturer
 
1991
 - 
1993
OMRON Corporation, Researcer
 

Education

 
 
 - 
2017
Department of Political Science, Faculty of Law (Correspondence Division), Keio University
 
 
 - 
2010
Faculty of Economics (Correspondence Division), Keio University
 
 
 - 
1991
Graduate School, Division of Science and Engineering, Keio University
 
 
 - 
1986
Faculty of Science and Engineering, Keio University
 

Awards & Honors

 
Mar 2012
8th Masatoshi Koshiba Science Education Awards, Encouragement Award
 
1993
41st Annual Relay Conference Prize Paper Award (3rd place)
 

Published Papers

 
A Study on Break Arc Behaviors of AgSnO2 Contacts in an Inductive Load Circuit up to DC20V-17A under Application of External Magnetic Field
TOKUMITSU Seika, HASEGAWA Makoto
IEICE Trans. on Electronics (Japanese Edition)   J102-C(10) 294-296   Oct 2019   [Refereed]
Relationships between break arc behaviors of AgSnO2 contacts and Lorentz force to be applied by an external magnetic force in a DC inductive load circuit up to 20V-17A
TOKUMITSU Seika, HASEGAWA Makoto
IEICE Trans. Electronics   E102-C(9) 641-645   Sep 2019   [Refereed]
Experimental study on dynamic welding of AgW60, CuW60 and Cu contact materials in symmetrical and asymmetrical pairings at DC270V/200A
LIAO Yuan, ZHANG Dandan, HE Mengbing, HASEGAWA Makoto Hasegawa, LI Zhenbiao
Plasma Physics and Technology   6(1) 10-14   2019   [Refereed]
Prediction of changes in visible colors of transmitting light beams to be changed by optical rotation phenomenon in syrup
TOKUMITSU Seika, HASEGAWA Makoto
Japanese J. of Applied Physics Education   42(2) 99-104   Dec 2018   [Refereed]
HASEGAWA Makoto, TOKUMITSU Seika
IEEE Trans. on Components, Packaging and Manufacturing Technology   8(3) 375-382   Mar 2018   [Refereed]
Theoretical predictions of changes in irradiances and colors of light beams travelling in sugared water to be caused by optical rotation phenomena and their possible applications for educational purposes
TOKUMITSU Seika, HASEGAWA Makoto
European Journal of Physics   39(3) 035303, https://doi.org/10.108   Mar 2018   [Refereed]
Experimental study on arcing effects to contact materials in 270V DC
ZHU Qingcheng, LI Zhenbiao, WEI Jiang, LIU Zixun, HUANG Jing, ZHANG D.D.Zhang, HASEGAWA Makoto
Plasma Physics and Technology   4(1) 61-65   Dec 2017   [Refereed]
Spectra analysis in sunset color demonstrations with white-color LED as a light source
HASEGAWA Makoto, TOKUMITSU Seika
Intl. J. of Mathematical, Computational, Physical, Electrical and Computer Engineering   10(9) 383-388   Sep 2016   [Refereed]
A proposal of a new convenient scheme for evaluations of melting shape characteristics of solder materials
HASEGAWA Makoto, SASAKI Risa, TAKAHASHI Hana
J. of Multidisciplinary Engineering Science and Technology (JMEST)   3(8) 5471-5474   Aug 2016   [Refereed]
YANG Xiaocheng, HUANG Jiang, LI Zhenbiao, LIU Jinyou, WANG Qian, HASEGAWA Makoto
IEEE Trans. on Components, Packaging and Manufacturing Technology   6(6) 846-853   Jun 2016   [Refereed]
HASEGAWA Makoto
Trans. of the Materials Research Society of Japan   41(1) 17-20   Feb 2016   [Refereed]
HASEGAWA Makoto
IEICE Trans. Electronics   E98-C(9) 932-937   Sep 2015   [Refereed]
New education scheme for college students through out-of-curriculum project activities
HASEGAWA Makoto
Intl. Journal of Modern Education Forum (IJMEF)   4(3) 120-123   Nov 2014   [Refereed]
LI Chen, LI Zhenbiao, WANG Qian, LIU Du, HASEGAWA Makoto, LI Lingling
IEICE Trans. Electronics   E97-C(9) 843-849   Sep 2014   [Refereed]
LIU Yun, XU Guangda, ZHAO Laijun, LI Zhenbiao, HASEGAWA Makoto
IEICE Trans. Electronics   E95-C(9) 1481-1486   Sep 2012   [Refereed]
ZHAO Laijun, LI Zhenbiao, ZHANG Hansi, HASEGAWA Makoto
IEICE Trans. Electronics   E94-C(9) 1362-1368   Sep 2011   [Refereed]
HASEGAWA Makoto
Trans. IEICE Electronics   E94-C(9) 1435-1438   Sep 2011   [Refereed]
BORKOWSKI Piotr, HASEGAWA Makoto
IEICE Trans. Electronics   E93-C(9) 1416-1423   Sep 2010   [Refereed]
HASEGAWA Makoto, TAMAKI Yoshinori, KAMADA Yusuke
IEEE Trans. on Components and Packaging Tecunologies   32(1) 127-134   Mar 2009   [Refereed]
HASEGAWA Makoto, KAMADA Yusuke
IEICE Trans. Electronics   E89-C(8) 1160-1163   Aug 2006   [Refereed]
HASEGAWA Makoto, KAMADA Yusuke
IEICE Trans. Electron.   E88-C(8) 1616-1619   Aug 2005   [Refereed]
HASEGAWA Makoto, AKITA Masato, IZUMI Kazutaka, KUBONO Takayoshi
IEICE Trans. Electron.   E88-C(8) 1573-1576   Aug 2005   [Refereed]
A proposal of a new evaluation scheme of pips and craters formed by arc discharges on electrical contact surfaces
HASEGAWA Makoto, SAWA Koichiro
IEICE Trans. Electron.   E87-C(8) 1277-1280   Aug 2004   [Refereed]
Application of a digital scanning laser microscope to 3-D analysis of contact surface damages
HASEGAWA Makoto, MAKIMOTO Jiro, SAWA Koichiro
IEICE Trans. on Electron.   E86-C(6) 932-938   Jun 2003   [Refereed]
Experimental results on operating characteristics of Ag, Pd and Cu contacts in nitrogen atmosphere
IEICE Trans. on Electron.   E83-C(9) 1385-1394   Sep 2000   [Refereed]
Recent researches and new trends of electrical contacts
IEICE Trans. on Electron.   E83-C(9) 1363-1376   Sep 2000   [Refereed]
An experimental study of material transfer and arc erosion characteristics of Ag contacts under switching lower current
IEICE Trans. on Electron.   E77-C(10) 1655-1661   Oct 1994   [Refereed]
HASEGAWA M, YAMAMOTO T, SAWA K
IEEE Trans. on Components, Hybrids, & Manufacturing Technology   15(2) 177-183   Apr 1992   [Refereed]
Infludence of steady arc duration on contact resistance characteristics of Ag-Pd30% contacts
HASEGAWA Makoto, SAWA Koichiro
Trans. IEICE Japan (Section E)   E73(11) 1846-1848   Nov 1990   [Refereed]
Influence of contact materials on the formation of palladium-oxides by mechanochemical reaction
HASEGAWA Makoto, SAWA Koichiro
Trans. IEICE Japan (Section E)   E73(4) 496-498   Apr 1990   [Refereed]
HASEGAWA M, SAWA K
IEEE Trans. on Components, Hybrids, & Manufacturing Technology   13(1) 33-39   Mar 1990   [Refereed]
A study of the formation of palladium-oxides caused by mechanical switching actions
HASEGAWA Makoto, SAWA Koichiro, MIYACHI Kunio
Trans. IEICE Japan (Section E)   E72(4) 296-298   Apr 1989   [Refereed]
Analysis of steady arc products on Ag/Pd contacts
HASEGAWA Makoto, SAWA Koichiro, MIYACHI Kunio
Trans. IEICE Japan (Section E)   E71(4) 276-277   Apr 1988   [Refereed]

Misc

 
Singularity of contact resistance of palladium contacts under no discharge conditions
Trsns. IEICE   J71-C-II(10) 1361-1367   1988
Influence of steady arc on contact resistance characteristics of Ag contacts
Trsns. IEICE   J73-C-II(2) 81-90   1990
Influence of mechanical switching operations on contact resistance characteristics of Ag contacts
Trans. IEICE   J73-C-II(12) 883-887   1990
Evaluation of contact surface configuration with a scanning laser microscope
Trans. IEICE   J76-C-II(11) 757-760   1993
Experimental study on 3-D analysis of contact surfaces with a digital scanning laser microscope
Proc. 47th IEEE Holm Conf. on Electrical Contacts   82-87    2001
Volumetric and numerical evalustion of contact surface damages of Ag, Pd and Cu contacts in inert gas atmosphers
Proc. 21st International Conf. on Electrical Contacts   118-125    2002
Investigations on mass change and surface morphology of contacts in electromagnetic contactor
Proc. 49th IEEE Holm Conf. on Electrical Contacts   84-90    2003
The voltage waveforms between contacts just at sticking on the make-only contacts mounted on a relay
Trans. IEICE   J88-C(2) 115-122   2005
The relationship between the chatter during wiping action at separating operation and the transferred pip on make-only contacts
Trans. IEICE   J88-C(11) 981-988   2005

Conference Activities & Talks

 
Arc energy calculation during re-striking phenomena in break operations of AgSnO2 contacts in inductive DC load conditions up to 20V-17A with different contact opening speeds [Invited]
Seika Tokumitsu and Makoto Hasegawa
Proc. 7th International Conference on Reliability of Electrical Products and Electrical Contacts (ICREPEC’2019), pp.18-22   Nov 2019   
Prediction of the angle of rotation to be caused by optical rotation phenomenon in optical active materials and observation of resultant changes in visible colors of transmitting light beams
Seika Tokumitsu and Makoto Hasegawa
Proc. of SPIE vol.11189 (Optical metrology and inspection for industrial applications VI), 1118912, (Photonics Asia 2019)   Oct 2019   
An experimental study on contact dynamic welding under different contact materials and surrounding atmospheres in HVDC
Wenxuan Liu, Yuan Liao, Lin Jiao, Xiaoping Bai, Ruxin Feng, Zhenbiao Li and Makoto Hasegawa
Proc. 5th International Conference on Electric Power Equipment – Switching Technology (ICEPE-ST2019), paper no.L-1-1   Oct 2019   
Arc movement investigations of break arcs of AgSnO2 contacts under applied external magnetic field in inductive DC load conditions
Seika Tokumitsu and Makoto Hasegawa
Proc. 65th IEEE Holm Conference on Electrical Contacts, pp.95-100   Sep 2019   
Analysis of student members’ attitudes on out-of-curriculum science communication activities and resultant educational effects
Makoto Hasegawa
Proc. 22nd International Conference on Interactive Collaborative Learning (ICL2019), pp.199-208   Sep 2019   
atisfactory role of LEDs as a light receiving component and their uses in science demonstration experiments for educational purposes
Makoto Hasegawa
Proc. of SPIE vol.11143, 111432F, (15th International Conference on Education and Training on Optics and Photonics (ETOP2019)), paper no.HIGH-ED-5-22-2)   May 2019   
Out-of-curriculum PBL-style activities of the science communication project team organized by undergraduate students and educational effects achievable through multiple-years involvement in the activities
Makoto Hasegawa
Abstract Collection of 2019 International Conference on Soft Computing and Machine Learning (SCML2019), p.26 (Oral Session 4)   Apr 2019   
Effective shortening of break arc durations of Ag and several Ag-based contacts in DC load conditions with increased contact opening speeds and external magnetic field
Seika Tokumitsu and Makoto Hasegawa
Proc. 29th Intl. Conf. (64th IEEE Holm Conf.) on Electrical Contacts, pp.87-94   Oct 2018   
Welding in break and make operations for CuMo and CuW contact materials in DC200-500V and different surrounding gases
Yuan Liao, Lige Zhang, Zhenbiao Li, Qingcheng Zhu and Makoto Hasegawa
Proc. 29th International Conference (64th IEEE Holm Conference) on Electrical Contacts, pp.71-76   Oct 2018   
Effective approach for education of university students through out-of-curriculum project activities
Makoto Hasegawa
World Education Day 2018 (WED2018), Session 5-2, p.146   Sep 2018   
Collaborative science event effective for achieving educational effects towards various generations in a local community
Makoto Hasegawa
World Education Day 2018 (WED2018),   Sep 2018   
Educational effects for university students through multiple-years participation in out-of-curriculum project activities
Makoto Hasegawa
Proc. 20th Intl. Conf. on Interactive Collaborative Learning (ICL2017), pp.110-120   Sep 2017   
Influences of external magnetic field application and increased contact opening speeds on break arc duration characteristics of AgSnO2 contacts in DC inductive load conditions
Makoto Hasegawa and Seika Tokumitsu
Proc. 63rd IEEE Holm Conf. on Electrical Contacts, pp.199-203   Sep 2017   
Observations and theoretical evaluations of color changes of traveling light beams caused by optical rotation phenomena in sugared water and their applications for educational purposes
Seika Tokumitsu and Makoto Hasegawa
Proc. of SPIE vol.10452, 1045219, (14th Intl. Conf. on Education and Training on Optics and Photonics (ETOP2017), paper no.ETP100-67)   May 2017   
Break arc characteristics of AgSnO2 contact pairs at contact opening speeds up to 200mm/s in DC load conditions under external magnetic field application
Makoto Hasegawa and Seika Tokumitsu
Proc. 6th Intl. Conf. on Reliability of Electrical Products and Electrical Contacts (ICREPEC’2017), pp.11-15   Apr 2017   
Break arc duration characteristics of AgSnO2 contacts under magnetic field application with contact opening speeds in the range up to 200mm/s in DC load conditions
Makoto Hasegawa and Seika Tokumitsu
Proc. 62nd IEEE Holm Conf. on Electrical Contacts, pp.119-124   Oct 2016   
Collaboration among educational institutes, industries and citizens in a local community for realizing enhanced science literacy through successful science events
Makoto Hasegawa
Proc. 19th Intl. Conf. on Interactive Collaborative Learning (ICL2016), Vol.1, (Advances in Intelligent Systems and Computing, Vol.544), pp.547-555   Sep 2016   
Spectra analysis in sunset color demonstrations with White-color LED as a light source
Makoto Hasegawa and Seika Tokumitsu
Conf. Proc. of World Academy of Science, Engineering and echnology, (18th Intl. Conf. on Physics Education (ICPE2016), Session VII, no.2), Vol.18, No.9, Part III, pp.308-313   Sep 2016   
Continuous outreach activities performed by a student project team of undergraduates and their program topics in optics and photonics
Makoto Hasegawa and Seika Tokumitsu
Proc. of SPIE vol.9946, 99460D, (SPIE Optics+Photonics, Optical Engineering+Applications, Optics Education & Outreach IV, paper no.9946-12)   Aug 2016   
Engineering educational effects for undergraduate students through out-of-curriculum project activities
Makoto Hasegawa
Proc. Intl.Conf. on Electrical Engineering 2016 (ICEE2016), no.90064   Jul 2016   
Influences of contact opening speeds and magnetic fields on break arc behaviors of AgSnO2 contact pairs in DC load circuits
Makoto Hasegawa and Hiroya Sonobe
Proc. 28th Intl. Conf. on Electric Contacts, pp.339-343   Jun 2016   
The effect of atmosphere on arcing durations of electrical contacts
Jiang Wei, Zhenbiao Li and Makoto Hasegawa
Proc. 28th Intl. Conf. on Electric Contacts, pp.57-62   Jun 2016   
Detection of load application onto an optical fiber through changes in speckle patterns in an output light spot
Makoto Hasegawa, Ryo Takeda and Yuki Fujioka
Proc. of SPIE vol.9685, 96850C, (The 8th SPIE Intl. Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2016), Smart Structure and Materials in Advanced Optical Technology, paper no.6-0005)   Apr 2016   
Use of LEDs as a light receiving component and their application to demonstration experiments for educational purposes
Makoto Hasegawa
Proc. 2015 IEEE Intl. Conf. on Teaching, Assessment, and Learning for Engineering (TALE2015), pp.31-35, paper no.113   Dec 2015   
Influences of contact opening speeds in the range of 0.5 to 200mm/s on break arc behaviors of AgSnO2 contacts in DC conditions
Makoto Hasegawa, Hiroya Sonobe and Nanami Ohkawa
Proc. 61st IEEE Holm Conf. on Electrical Contacts, pp.166-170   Oct 2015   
Changes in speckle patterns induced by load application onto an optical fiber and its possible application for sensing purpose
Makoto Hasegawa, Jyun-ya Okumura and Akio Hyuga
Proc. of SPIE vol.9620, 962009, (2015 Intl. Conf. on Optical Instrument & Technology (OIT2015), Optical Sensor and Applications, paper no.9620-1)   May 2015   
Case study on educational effects for university students of their out-of-curriculum project activities
Makoto Hasegawa
Proc. 2015 2nd Intl. Conf. on Educational Reform and Modern Management (ERMM2015), no.ERMM2015-E040, pp.205-208   Apr 2015   
Undergraduates investigation on how to effectively use tablet terminals in science experiment classes and engineering education through such investigation
Makoto Hasegawa and Shun Teshima
Proc. 2014 IEEE Intl. Conf. on Teaching, Assessment, and Learning for Engineering (TALE2014), session.2F, no.1   Dec 2014   
Non-contacting evaluation schemes for erosion and damages on contact surfaces caused by arc discharges
Makoto Hasegawa
Proc. 5th Intl. Conf. on Reliability of Electrical Products and Electrical Contacts (ICREPEC’2014), pp.43-47   Nov 2014   
Three-dimensional observation and comparison of damage shapes on Ag and AgSnO2 contact surfaces caused by break operations in DC inductive load currents
Makoto Hasegawa and Daichi Kawamura
Proc. 60th IEEE Holm Conf. on Electrical Contacts, pp.132-138   Oct 2014   
Influences of contact opening speeds in the range of 0.5 to 200mm/s on break arc behaviors of Ag and AgSnO2 contacts in DC14V inductive load circuits of 1 to 5A
Makoto Hasegawa, Hiroya Sonobe and Yuki Ohmae
Proc. 60th IEEE Holm Conf. on Electrical Contacts, pp.14-18   Oct 2014   
Application of optical communication demonstration set employing LEDs both as light transmitting and receiving elements for education of energy characteristics of semiconductor materials
Makoto Hasegawa
15th Intl. Union of Materials Research Societies – Intl. Conf. in Asia (IUMRS-ICA2014), no.F1-I28-004   Aug 2014   
Science education through activities of the student project team under regional collaboration
Makoto Hasegawa, Nanami Okawa, Shun Teshima and Seika Tokumitsu,
15th Intl. Union of Materials Research Societies – Intl. Conf. in Asia (IUMRS-ICA2014), no.F1-I28-003   Aug 2014   
Break arc behaviors of Ag and AgSnO2 contact pairs under different contact opening speeds in DC load circuits
Makoto Hasegawa
Proc. 27th Intl. Conf. on Electrical Contacts, pp.138-143   Jun 2014   
Changes in speckle patterns induced by load application onto an optical fiber and its detection through image processing
Makoto Hasegawa, Yuta Shimizu and Takuya Nakamaru
Proc. of SPIE vol.9285, 928502, (The 7th SPIE Intl. Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2014), Smart Structure and Materials in Manufacturing and Testing, paper no.6-0008),   Apr 2014   
Influence of contact opening speeds on break arc behaviors of Ag and AgSnO2 contacts in DC load circuits
Makoto Hasegawa
Proc. 2nd Intl. Conf. on Electric Power Equipment - Switching Technology (ICEPE2013), no.3-a1-P-4   Oct 2013   
Comparison of transfer and erosion shapes on Ag and AgSnO2 contacts caused by break arc discharges in a DC inductive load circuit
Makoto Hasegawa, Keisuke Takahashi, Daichi Kawamura and Yuya Hirano
Proc. 59th IEEE Holm Conf. on Electrical Contacts, pp.288-294   Sep 2013   
Roles and effects of activities of a student project team in engineering education for university students in lower grades
Makoto Hasegawa
Proc. 2013 IEEE Intl. Conf. on Teaching, Assessment, and Learning for Engineering (TALE2013), no.140, pp.87-90   Aug 2013   
A simple experiment set for demonstrating optical communication with LEDs as light transmitting and receiving components
Makoto Hasegawa
Proc. 2013 Intl. Conf. on Physics Education (ICPE-EPEC2013), pp.1151-1157, no.093.P1   Aug 2013   
Physics and science education through project activities of university students and regional collaboration
Makoto Hasegawa
JPS Conf. Proc. Vol.1, pp.017016-1 - 017016-4 (2014) (12th Asia Pacific Physics Conference (APPC12), no.F-PTu-1, 2013-07)   Jul 2013   
Speckle pattern rotation and a detection scheme for its rotation angle
Makoto Hasegawa, Kohei Yamamoto, Yusuke Takahashi and Muneki Kawahara
Proc. of SPIE vol.8905, 89051J (5th International Symposium on Photoelectronic Detection and Imaging (ISPDI2013), no.2-031)   Jun 2013   
Rotation phenomena of speckle patterns observed in an output light spot from an optical fiber and its applicability for sensing application
Makoto Hasegawa, Yusuke Takahashi and Muneki Kawahara
Proc. of SPIE vol.8561 (Advanced Sensor Systems and Applications V), 856105, (Photonics Asia 2012, paper no.8561-4)   Nov 2012   
An experimental study on detection of load application onto an optical fiber by means of changes of a speckle pattern
Makoto Hasegawa and Muneki Kawahara
Proc. of SPIE vol.8561 (Advanced Sensor Systems and Applications V), 856103, (Photonics Asia 2012, paper no.8561-3)   Nov 2012   
An experimental study on influences of contact opening speeds on arcing behaviors of Ag contacts
Makoto Hasegawa
Proc. 19th Intl. Conf. on Gas Discharges and Their Applications (GD2012), pp.106-109   Sep 2012   
An experimental study on contact resistance characteristics of relay contacts operated in the vicinity of new telechelic polyacrylate polymers
Makoto Hasegawa, Nanae Kobayashi, Yoshiyuki Kohno and Hiroshi Ando
Proc. 58th IEEE Holm Conf. on Electrical Contacts, pp.89-93   Sep 2012   
Observation of changes of contact surface profiles of Ag and AgSnO2 contacts during switching operations with an optical cross-section method
Makoto Hasegawa and Keisuke Takahashi
Proc. 58th IEEE Holm Conf. on Electrical Contacts, pp.280-286   Sep 2012   
Contact resistance characteristics of relays operated in vapors evaporated from non-silicone-type acryl-based polymeric products cured in various manners
Makoto Hasegawa, Nanae Kobayashi, Yoshiyuki Kohno and Yoshiyuki Kohno
Proc. 26th Intl. Conf. on Electrical Contacts, pp.272-276 (2012-05)   May 2012   
Non-contacting evaluation schemes of contact surface damages with several optical techniques
Makoto Hasegawa and Keisuke Takahashi
Proc. 1st Intl. Conf. on Electric Power Equipment - Switching Technology (ICEPE2011), pp.152-155   Oct 2011   
Electrical contact phenomena in switching technology - Arc discharges in switching contacts- [Invited]
Makoto Hasegawa
Proc. 1st Intl. Conf. on Electric Power Equipment - Switching Technology (ICEPE2011), pp.480-487   Oct 2011   
Contact resistance characteristics of relays operated in silicone-vapor-containing and non-silicone atmospheres with different electrical load conditions
Makoto Hasegawa, Nanae Kobayashi and Yoshiyuki Kohno
Proc. 57th IEEE Holm Conf. on Electrical Contacts, pp.98-104   Sep 2011   
Evaluation of contact surface damages with an optical cross-section method
Makoto Hasegawa and Keisuke Takahashi
Proc. 57th IEEE Holm Conf. on Electrical Contacts, pp.105-111   Aug 2011   
Contact resistance characteristics of relay contacts in the vicinity of silicone-type and non-silicone-type polymeric cured materials at elevated temperatures
Makoto Hasegawa and Yoshiyuki Kohno
Proc. 25th Intl. Conf. (56th IEEE Holm Conf.) on Electrical Contacts, pp.317-322   Oct 2010   
An experimental study on influences of contact opening speeds on arcing behaviors of silver contacts
Makoto Hasegawa
Proc. 3rd Intl. Conf. on Reliability of Electrical Products and Electrical Contacts (ICREPEC’2009), pp.146-150   Oct 2009   
An experimental study on influences of silicon-type and non-silicone-type polymeric cured materials on contact resistance characteristics of relay contacts
Makoto Hasegawa, Yoshiyuki Kohno and Hiroshi Ando
Proc. 55th IEEE Holm Conf. on Electrical Contacts, pp.260-266   Sep 2009   
Analysis of contact resistance data with Weibull distribution function
Makoto Hasegawa and Yuta Yanagitani
Proc. 54th IEEE Holm Conf. on Electrical Contacts, pp.344-349   Oct 2008   
Evaluation of new polymeric material on performances of mechanical relays
Makoto Hasegawa, Yudai Kobayashi, Yoshiyuki Kohno and Hiroshi Ando
Proc. 24th Intl. Conf. on Electrical Contacts, pp.145-150   Jun 2008   
An experimental study of the minimum arc current of silver contacts with different opening speeds
Makoto Hasegawa
Proc. 53rd IEEE Holm Conf. on Electrical Contacts, pp.294-299   Sep 2007   
An experimental study of minimum arc current of electrical contact materials
Makoto Hasegawa
Proc. 2nd Intl. Conf. on Reliability of Electrical Products and Electrical Contacts, (ICREPEC’2007), pp.97-102   Mar 2007   
An experimental study on minimum arc current of relay contacts and possible re-interpretation of the meaning thereof
Makoto Hasegawa, Yoshinobu Tamaki and Yusuke Kamada,
Proc. 52nd IEEE Holm Conf. on Electrical Contacts, pp.153-158   Sep 2006   
Undergraduate project for developing science experiment programs and its educational effects
Makoto Hasegawa and Koji Ishida
Proc. Intl. Conf. on Physics Education 2006, No.P116, pp.268-269   Aug 2006   
New algorithm for volumetric analysis of contact damages with laser microscope data
Makoto Hasegawa, Kazutaka Izumi and Yusuke Kamada,
Proc. 23rd Intl. Conf. on Electrical Contacts, pp.337-342   Jun 2006   
An experimental study on re-interpretation of minimum arc current of relay contacts
Makoto Hasegawa and Yusuke Kamada,
Proc. 54th International Relay & Switch Technology Conf., pp.45-50   Apr 2006   
Three-Dimensional Evaluation of Contact Surface Damages with a Scanning Laser Microscope
Makoto Hasegawa, Kazutaka Izumi and Masato Akita,
Proc. 53rd Relat and Switch Technology Conf., pp.5-1 - 5-9   Apr 2005   
Development of numerical analysis program of laser microscope data
Makoto Hasegawa, Masato Akita, Kazutaka Izumi and Takayoshi Kubono,
Proc. 22nd. Intl. Conf. (50th IEEE Holm Conf.) on Electrical Contacts, pp.441-446   Sep 2004   
An evaluation method of the contact erosion based on the DC mode test of electromagnetic contactor
Yosuke Kawakami, Masaki Takashima, Makoto Hasegawa, Yoshitada Watanabe and Koichiro Sawa,
Proc. 22nd Intl. Conf. (50th IEEE Holm Conf.) on Elctrical Contacts, pp.83-89   Sep 2004   
Three-dimensional evaluation of contact surface damages with a scanning laser microscope
Makoto Hasegawa, Takayoshi Kubono and Koichiro Sawa,
Proc. 1st Intl. Conf. on reliability of Electrical Products and Electrical Contacts (ICREPEC'2004), pp.95-102   Aug 2004   
Investigation of mass change and surface morphology of contacts in electromagnetic contactor
Masaki Takashima, Nahoko Yamamura, Makoto Hasegawa, Yoshitada Watanabe and Koichiro Sawa,
Proc. 49th IEEE Holm Conf. on Electrical Contscts, pp.84-90   Sep 2003   
An experimental study on operating characteristics of Ag, Pd and Cu contacts in Argon atmosphere
Makoto Hasegawa, Kenta Imai, Jiro Makimoto and Koichiro Sawa,
Proc. 49th IEEE Holm Conf. on Electrical Contacts, pp.190-197   Sep 2003   
Volumetric and numerical evalustion of contact surface damages of Ag, Pd and Cu contacts operated in inert gas atmospheres
Makoto Hasegawa, Jiro Makimoto and Koichiro Sawa
Proc. 21st Intl. Conf. on Electrical Contacts, pp.118-125   Sep 2002   
Experimental study on 3-D analysis of contact surface with a digital scanning laser microscope
Makoto Hasegawa, Jiro Makimoto and Koichiro Sawa
Proc. 47th IEEE Holm Conf. on Electrical Contacts, pp.82-87   Sep 2001   
Arc discharge and contact resistance characteristics of Ag, Cu and Pd contacts in air and in nitrogen atmosphere
Makoto Hasegawa, Jiro Makimoto, Naoki Minoura and Koichiro Sawa
Proc. 20th Intl. Conf. on Electrical Contacts, pp.45-50   Jun 2000   

Research Grants & Projects

 
A study on evaluation of electrical contact phenomena with optical scheme
A study on evaluation of 3D shapes with scanning laser microscope
A study on reliability of automobile switching devices with 42V power supply