TY

Tatsumi Yamauchi

HI Hitachi: 51 patents #272 of 28,497Top 1%
HS Hitachi Automotive Systems: 14 patents #80 of 1,636Top 5%
HE Hitachi Vehicle Energy: 8 patents #6 of 95Top 7%
HA Hitachi Astemo: 5 patents #131 of 1,276Top 15%
HC Hitachi Car Engineering Co.: 4 patents #107 of 465Top 25%
HC Hitachi Engineering Co.: 4 patents #38 of 572Top 7%
HA Hitachi Appliances: 3 patents #22 of 109Top 25%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
📍 Hitachinaka, JP: #22 of 2,447 inventorsTop 1%
Overall (All Time): #26,968 of 4,157,543Top 1%
73
Patents All Time

Issued Patents All Time

Showing 1–25 of 73 patents

Patent #TitleCo-InventorsDate
12334289 Relay control device and method of controlling relay control device Hikaru Miura, Mutsumi Kikuchi 2025-06-17
12160126 In-vehicle battery system Akihiro Machida, Toyoki Iguchi, Hiroaki Saitou, Hiroaki Hashimoto, Akihiro Nomura 2024-12-03
11418042 Battery management unit Hikaru Miura, Mutsumi Kikuchi, Akihiro Machida, Masahiro Ueda, Kenichiro Tsuru 2022-08-16
11411259 Battery control unit Akihiro Machida 2022-08-09
11380502 Electromagnetic switch control device Hikaru Miura, Tomonori Kanai, Akihiro Machida 2022-07-05
11249139 Battery monitoring system Takuya Enmei, Akihiro Machida 2022-02-15
11201614 Load control device having multiple terminals and a clamp circuit connected therebetween Hikaru Miura, Akihiro Machida, Mutsumi Kikuchi 2021-12-14
10202041 Battery monitoring system Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura +4 more 2019-02-12
9746525 Battery system monitoring device Akihiko Kudo, Mutsumi Kikuchi, Tomonori Kanai, Akihiro Machida 2017-08-29
9590432 Battery control device comprising a plurality of cell controllers and being capable of determining whether a cell controller is operating abnormally Shinya Kato, Akihiro Machida 2017-03-07
9568557 Battery monitoring device and battery system monitoring device Akihiko Kudo, Mutsumi Kikuchi, Tomonori Kanai, Akihiro Machida 2017-02-14
9519027 Battery monitoring device and battery system monitoring device Akihiko Kudo, Mutsumi Kikuchi, Tomonori Kanai, Akihiro Machida 2016-12-13
9496749 Storage battery control device and electrical storage device Mitsuo Noda, Akihiko Kudo 2016-11-15
9419447 Battery control device and electricity storage device Akihiro Machida, Akihiko Kudo 2016-08-16
9404975 Battery monitoring system Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura +4 more 2016-08-02
9340122 Battery system monitoring apparatus Akihiro Machida, Akihiko Kudo, Akihiko Emori, Mutsumi Kikuchi 2016-05-17
9130379 Integrated circuit for controlling battery cell and vehicle power supply system Kei Sakabe, Akihiko Emori, Akihiko Kudo, Kenji Kubo, Youhei Kawahara +1 more 2015-09-08
9048667 Cell controller, battery module and power supply system Masaki Nagaoka, Akihiko Kudo, Mutsumi Kikuchi, Kenichiro Tsuru, Akihiko Emori 2015-06-02
8981721 Battery control device and electricity storage device Akihiro Machida, Akihiko Kudo 2015-03-17
8829717 Battery control device and battery system Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura +2 more 2014-09-09
8723527 Battery monitoring system Akihiko Kudo, Mutsumi Kikuchi, Gosuke Shibahara, Akihiko Emori, Yasuo Uemura +4 more 2014-05-13
8487590 Cell controller having a unit cell voltage detecting section Akihiko Kudo, Masaki Nagaoka, Kenichiro Tsuru, Mutsumi Kikuchi, Akihiko Emori 2013-07-16
8466708 State detection device for power supply system Youhei Kawahara, Yoshinori Aoshima, Kenichiro Tsuru, Akihiko Kudo, Akihiko Emori 2013-06-18
8426047 Multi-series battery control system Akihiko Emori, Youhei Kawahara, Kei Sakabe, Mutsumi Kikuchi, Akihiko Kudo 2013-04-23
8264204 Cell controller, battery module and power supply system Masaki Nagaoka, Akihiko Kudo, Mutsumi Kikuchi, Kenichiro Tsuru, Akihiko Emori 2012-09-11