AM

Ayumu Morita

HI Hitachi: 45 patents #373 of 28,497Top 2%
HC Hitachi Engineering & Services Co.: 2 patents #17 of 129Top 15%
HC Hitachi Industrial Equipment Systems Co.: 2 patents #215 of 550Top 40%
TI Tokyo Electric Power Company Holdings, Incorporated: 2 patents #90 of 711Top 15%
NC Nok Klueber Co.: 1 patents #19 of 43Top 45%
Overall (All Time): #60,905 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDate
9919722 Railroad vehicle Kenji Tsuchiya, Makoto Watanabe, Yoshinori Shimada, Hideo Kitabayashi, Wataru Murata 2018-03-20
9899172 Circuit breaker and circuit breaker operating method Hajime Urai, Yasuaki Aoyama, Hiroaki Hashimoto, Katsuhiko Shiraishi, Tatsuro Kato +2 more 2018-02-20
9818562 Switch Takashi Sato, Makoto Yano, Kenji Tsuchiya, Akio Nakazawa 2017-11-14
9520699 Switchgear Hajime Urai, Yasuaki Aoyama, Hiroaki Hashimoto, Tatsuro Kato, Toshiaki Rokunohe +1 more 2016-12-13
9437380 Switching unit or switching gear Miki Yamazaki, Tomoaki Utsumi, Masato Yabu 2016-09-06
9378913 Operating device or vacuum switch Takashi Sato, Kenji Tsuchiya, Masato Yabu, Akio Nakazawa, Hisao Kawakami +2 more 2016-06-28
9318285 Switchgear and opening and closing method thereof Takashi Sato, Kenji Tsuchiya 2016-04-19
9312669 Resistor, method of assembling the same, and switchgear Naoya Okada, Akitaka Shiina, Kenji Tsuchiya, Mitsuaki Yamamoto, Hiroaki Morii +1 more 2016-04-12
9238784 Grease for electrical contact and slide electricity structure, power switch, vacuum circuit breaker, vacuum insulated switchgear, and vacuum-insulated switchgear assembling method Takashi Sato, Kazuhiro Sato, Kenji Tsuchiya, Takao Kanno, Toshio Nitta 2016-01-19
9142371 Actuator for contactor Takamitsu Hae, Masato Yabu, Akio Nakazawa, Kenji Tsuchiya 2015-09-22
8946581 Switchgear Masato Yabu, Kenji Tsuchiya 2015-02-03
8872054 Switch unit and switchgear equipped therewith Miki Yamazaki, Kenji Tsuchiya, Tomoaki Utsumi 2014-10-28
8796570 Interlock device of draw-out type circuit breaker, draw-out type circuit breaker, and power distribution board Masato Kobayashi, Masato Suzuki 2014-08-05
8791379 Switchgear Shuichi Kikukawa, Kenji Tsuchiya, Keiichi Takahashi 2014-07-29
8710388 Switchgear and method for operating switchgear Tomoaki Utsumi, Takashi Shirone, Takashi Sato, Kenji Tsuchiya 2014-04-29
8576545 Switchgear Keiichi Takahashi, Kenji Tsuchiya, Masato Kobayashi, Daisuke Sugai 2013-11-05
8570121 Air circuit breaker Masashi Sawada, Masato Yabu, Motoki Shibuya 2013-10-29
8373082 Vacuum insulated switchgear Kenji Tsuchiya, Masato Kobayashi 2013-02-12
8304679 Vacuum insulated switchgear Kenji Tsuchiya, Masato Kobayashi 2012-11-06
8294057 Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch Miki Yamazaki, Kenji Tsuchiya, Masato Kobayashi, Shuichi Kikukawa, Shigeru Kikuchi 2012-10-23
8247725 Vacuum switchgear Takashi Sato, Tomoaki Utsumi, Makoto Yano, Kenji Tsuchiya, Masato Kobayashi +2 more 2012-08-21
8237076 Vacuum switch Takashi Sato, Kenji Tsuchiya 2012-08-07
8049130 Vacuum insulated switch and vacuum insulated switchgear Masato Kobayashi, Kenji Tsuchiya, Miki Yamazaki 2011-11-01
8035054 Vacuum insulated switchgear Hiroyuki Ozawa, Kenji Tsuchiya, Masato Kobayashi 2011-10-11
7911303 Circuit breaker and opening and closing method thereof Minoru Hosoda, Yoshihiko Matsuda, Masato Suzuki, Keiichi Miyashita, Shigetoshi Oouchi +2 more 2011-03-22