Matsushima, Eiji, Sawa, Koichiro, Nagashima, Akira
13TH ECTP Proceedings Pages 527-33
Development of the Lead-Free Brush Material for the High-Load Starter (2007)
HONBO, Ryoichi, MURAKAMI, Youichi, SAWA, Koichiro, WAKABAYASHI, Hiroyuki, INAYOSHI, Naruhiko, INUKAI, Kyoji, ...
This paper reports the development of a lead-free brush material for a high-load starter. These brushes are used in much more extreme conditions—at the PV-value (the product of brush contact...
Consideration on Contact Mechanism of YBaCuO Bulk Superconductor with Deposited Metal Layer (2007)
FUJITA, Hiroyuki, FUKUDA, Katsuya, SAWA, Koichiro, TOMITA, Masaru, MURAKAMI, Masato, SAKAI, Naomichi, ...
A persistent current switch (PCS) is used for superconducting applications, such as superconducting magnetic energy storage (SMES) system. The authors have proposed a mechanical switch of Y-Ba-Cu-O...
KOIBUCHI, Koichi, SAWA, Koichiro, HONMA, Takashi, HAYASHI, Takumi, UEDA, Kuniyoshi, SASAKI, Hiroshi
Eddy-current type proximity sensor is a non-contact type sensing device to detect the approach of a conductor by increase of coil resistance due to eddy-current loss. This paper proposes to add the...
Fabrication Process of Nonarcing Power MEMS Switch (2005)
YONEZAWA, Yu, WAKATSUKI, Noboru, SATOH, Yoshio, NAKATANI, Tadashi, SAWA, Koichiro
We proposed a new electric contact device that suppresses the arc phenomena. The functions of electric contacts are divided into energizing and switching for arc suppression. Switching contacts...
Development of the Lead-Free Carbon Brush Material for Starters (2005)
HONBO, Ryoichi, SAWA, Koichiro, MURAKAMI, Youichi, WAKABAYASHI, Hiroyuki, INAYOSHI, Naruhiko, INUKAI, Kyoji, ...
Carbon brushes for starters are used under severe conditions of high electric current density, high contact pressure and high sliding velocity. Lead has traditionally been added to carbon brushes to...
KOIBUCHI, Koichi, SAWA, Koichiro, HONMA, Takashi, HAYASHI, Takumi, UEDA, Kuniyoshi, SASAKI, Hiroshi
An eddy-current type proximity sensor is a non-contact type sensing device to detect the approach of a conductor by increase of equivalent AC resistance of excitation coil due to eddy current loss in...
Matsushima, Eiji, Nagashima, Akira, Sawa, Koichiro
Carbon-carbon composites are important structural materials for high temperatures. However, their thermal properties and microscopic structures change with temperature and time required for heat...