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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EMD | 2015-01-23 13:55 |
Kanagawa | An experimental study on influences of contact opening speeds on break arc characteristics of AgSnO2 contact pair at interruptions of inductive DC load currents Makoto Hasegawa, Nanami Ohkawa, Hiroya Sonobe (Chitose Inst. of Science & Technology)  EMD2014-102 |
In a DC inductive load circuit (L=20mH) with a power supply voltage of DC14V, break operations of a load current in the ... [more] | EMD2014-102 pp.7-10 |
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| EMD | 2014-12-19 16:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg | An experimental study on changes in speckle patterns to be induced by load application onto an optical fiber Makoto Hasegawa, Yuta Shimizu, Takuya Nakamaru (Chitose Inst. of Science and Tech.) EMD2014-100 |
When a certain load is being applied onto an jacket-covered communication-grade multimode glass optical fiber through wh... [more] | EMD2014-100 pp.31-36 |
| EMD | 2014-11-30 15:35 |
Hokkaido | Chitose Cultural Center | Influences of contact opening speeds on break arc behaviors of AgSnO2 contact pairs in DC inductive load conditions Makoto Hasegawa (Chitose Inst. of Science and Tech.) EMD2014-93 |
Break operations of a DC inductive (L=20mH) current at about 1A, 3A and 5A with 14V were conducted with AgSnO2 contact p... [more] | EMD2014-93 pp.161-164 |
| PN | 2014-09-04 14:00 |
Hokkaido | Suppression Effect of Peak-to-average-ratio in Optical OFDM based on Fractional Fourier Transform Tomotaka Nagashima, Takuya Murakawa, Makoto Hasegawa (Osaka Univ.), Satoshi Shimizu (NICT), Gabriella Cincotti (Univ. Roma Tre), Kunihiro Hattori, Masayuki Okuno, Shinji Mino, Akira Himeno (NEL), Naoya Wada (NICT), Hiroyuki Uenohara (Tokyo Inst. of Tech.), Tsuyoshi Konishi (Osaka Univ.) PN2014-12 |
Nonlinear optical effects are unavoidable issues for next generation of optical networks and multi-carriers of current o... [more] | PN2014-12 pp.7-11 |
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| EMD | 2014-05-16 14:20 |
Miyagi | Ｉｓｈｉｎｏｍａｋｉ Senshu University | An experimental study on relationships between break arc durations and contact opening speeds of Ag and AgSnO2 contact pairs in DC load circuits Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2014-4 |
In a DC inductive load circuit (L=20mH) with a power supply voltage of DC14V, break operations of a load current in the ... [more] | EMD2014-4 pp.19-22 |
| PN | 2014-03-03 13:20 |
Kagawa | Tokushima Bunri University | Study on Transmission Technology using Optical Fractional Discrete Fourier Transform Device for Optical OFDM Tsuyoshi Konishi (Osaka Univ.), Gabriella Cincotti (Roma Univ.), Takahiro Kodama, Takuya Murakawa, Tomotaka Nagashima, Makoto Hasegawa (Osaka Univ.), Satoshi Shimizu, Naoya Wada (NICT) PN2013-94 |
[more] | PN2013-94 pp.23-27 |
| EMD, R | 2014-02-21 13:55 |
Osaka | Three-dimensional comparisons of damage shapes on Ag and AgSnO2 contact surfaces caused by break arc discharges Makoto Hasegawa, Daichi Kawamura (Chitose Inst. of Science and Tech.) R2013-86 EMD2013-142 |
Observation and evaluation of changes (damage growth) on contact surfaces caused by arc discharges are important for rea... [more] | R2013-86 EMD2013-142 pp.13-18 |
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| EMD | 2013-11-17 09:25 |
Overseas | Huazhong University of Science and Technology, Wuhan, P.R.China | Three-dimensional observation of damage shapes caused by break arcs on Ag and AgSnO2 contact surfaces Daichi Kawamura, Makoto Hasegawa (Chitose Inst. of Science & Tech.) EMD2013-104 |
A growth process of damage shapes (specifically growth of a crater) on a cathode surface of a Ag contact pair and a AgSn... [more] | EMD2013-104 pp.119-122 |
| EMD | 2013-11-17 11:35 |
Overseas | Huazhong University of Science and Technology, Wuhan, P.R.China | An experimental study on influences of contact opening speeds on break arc characteristics of Ag and AgSnO2 contacts Makoto Hasegawa (Chitose Inst. of Science & Tech.) EMD2013-112 |
In a DC inductive load circuit (L=20mH) with a power supply voltage of DC14V, break operations of a load current in the ... [more] | EMD2013-112 pp.155-158 |
| EMD, CPM, OME | 2013-06-21 14:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | An experimental study on influences of contact opening speeds on break arc durations of Ag and AgSnO2 contacts Makoto Hasegawa (Chitose Inst. of Science and Tech.) EMD2013-15 CPM2013-30 OME2013-38 |
In a DC inductive load circuit (L=20mH) and a DC resistive load circuit with a power supply voltage of DC14V, break oper... [more] | EMD2013-15 CPM2013-30 OME2013-38 pp.43-48 |
| EMD | 2013-05-17 15:55 |
Hokkaido | Chitose Arcadia Plaza | Observation of damage shapes caused by break arcs on Ag and AgSnO2 contact surfaces during switching operations Makoto Hasegawa, Keisuke Takahashi, Daichi Kawamura, Yuya Hirano (Chitose Inst. of Science and Tech.) EMD2013-6 |
An evaluation system enabling observation and evaluation of changes on contact surface conditions (growth of a crater an... [more] | EMD2013-6 pp.29-34 |
| EMD | 2013-03-01 15:35 |
Saitama | Nippon Institute of Technology | Damage shape evaluation system of electrical contacts and investigation of material transfer and erosion phenomena Keisuke Takahashi, Daichi Kawamura, Yuya Hirano, Makoto Hasegawa (Chitose Inst. of Science and Tech.) EMD2012-118 |
Contact surfaces of mechanical relays and switches are often damaged by arc discharges and/or mechanical wear during swi... [more] | EMD2012-118 pp.37-40 |
| EMD | 2013-01-25 15:50 |
Kanagawa | Hitachi, Ltd., (Totsuka, Yokohama) | An experimental study on a 3-D shape observation system of a sample by employing a laser displacement sensor Makoto Hasegawa, Daichi Kawamura, Keisuke Takahashi (Chitose Inst. of Science and Tech.) EMD2012-100 |
For the purpose of observing and evaluating damaged shapes due to material transfer and erosion, caused by arc discharge... [more] | EMD2012-100 pp.15-19 |
| EMD | 2012-11-30 14:10 |
Chiba | Chiba Institute of Technology | Observation of growth of arc damages on Ag and AgSnO2 contact surfaces during switching operations Keisuke Takahashi, Makoto Hasegawa (Chitose Inst. of Science and Tech.) EMD2012-69 |
An evaluation system for contact surface damages is being constructed so as to realize observation of a changing process... [more] | EMD2012-69 pp.31-36 |
| EMD | 2012-10-19 15:15 |
Tokyo | Fuji Electric FA Components & Systems Co., Ltd. | Three dimensional evaluation of arc damages on Ag and AgSnO2 contact surfaces Keisuke Takahashi, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2012-63 |
Material transfer and erosion caused by arc discharges during operations of mechanical relays and switches is one of cri... [more] | EMD2012-63 pp.19-24 |
| EMD | 2012-05-25 15:50 |
Miyagi | Tohoku Bunka Gakuen Univ. | An experimental study on an optical measurement system for damages on contact surfaces (II) Keisuke Takahashi, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2012-6 |
For the purpose of realizing, during switching operations, observation and evaluation of growth processes of a crater an... [more] | EMD2012-6 pp.27-30 |
| EMD | 2012-05-25 16:15 |
Miyagi | Tohoku Bunka Gakuen Univ. | A study on a detection system for load application onto an optical fiber by means of changes of a speckle pattern (II) Muneki Kawahara, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2012-7 |
In order to investigate possibility of utilizing speckle patterns to be observed in an output light spot from an optical... [more] | EMD2012-7 pp.31-36 |
| EMD | 2012-03-02 16:15 |
Tokyo | Tanagawa Univ. | A study on a detection system for load application onto an optical fiber by means of changes of a speckle pattern Muneki Kawahara, Makoto Hasegawa (Chitose Inst. of Science & Technology) EMD2011-139 |
In order to investigate possibility of utilizing speckle patterns to be observed in an output light spot from an optical... [more] | EMD2011-139 pp.53-56 |
| EMD, R | 2012-02-17 11:00 |
Kyoto | An experimental study on contact resistance characteristics of relay contacts operated in the vicinity of a new acryl-based polymer Makoto Hasegawa, Nanae Kobayashi (Chitose Inst. of Science and Technology), Yoshiyuki Kohno, Hiroshi Ando (Kaneka Corp.) R2011-43 EMD2011-117 |
The authors have already reported that when relays were operated to break load currents in vapors evaporated from a newl... [more] | R2011-43 EMD2011-117 pp.7-12 |
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| EMD, R | 2012-02-17 11:25 |
Kyoto | An experimental study on an optical measurement system for damages on contact surfaces Keisuke Takahashi, Makoto Hasegawa (Chitose Inst. of Science and Technology) R2011-44 EMD2011-118 |
Contact surfaces of mechanical relays and switches are often damaged by arc discharges and/or mechanical wear during swi... [more] | R2011-44 EMD2011-118 pp.13-18 |
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