TU

Toshifumi Usui

HI Hitachi: 46 patents #351 of 28,497Top 2%
HC Hitachi Car Engineering Co.: 27 patents #7 of 465Top 2%
HC Hitachi Automotive Engineering Co.: 2 patents #95 of 314Top 35%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
Overall (All Time): #63,552 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 1–25 of 46 patents

Patent #TitleCo-InventorsDate
RE40523 Non-contact rotational position sensor and throttle valve assembly including non-contact rotational position sensor Kenji Miyata, Satoshi Shimada, Fumio Tajima, Masanori Kubota 2008-09-30
7367315 Throttle valve control apparatus of internal combustion engine and automobile using the same Eisuke Wayama, Yoshikatsu Hashimoto, Shigeru Tokumoto, Yasuo Saito 2008-05-06
7231903 Throttle apparatus for an internal combustion engine Eisuke Wayama, Shigeru Tokumoto, Yasuo Saito 2007-06-19
7152581 Throttle valve control apparatus of internal combustion engine and automobile using the same Eisuke Wayama, Yoshikatsu Hashimoto, Shigeru Tokumoto, Yasuo Saito 2006-12-26
7121259 Throttle device for internal-combustion engine Eisuke Wayama, Yoshikatsu Hashimoto, Yasuo Saito 2006-10-17
7093581 Throttle valve control apparatus of internal combustion engine and automobile using the same Eisuke Wayama, Yoshikatsu Hashimoto, Shigeru Tokumoto, Yasuo Saito 2006-08-22
7055498 Throttle assembly for internal combustion engine, and throttle sensor Yoshikatsu Hashimoto, Shigeru Tokumoto, Yasuo Saito, Eisuki Wayama 2006-06-06
6966297 Throttle device for internal-combustion engine Eisuke Wayama, Yoshikatsu Hashimoto, Yasuo Saito 2005-11-22
6945228 Throttle device for internal-combustion engine Yasuo Saito, Yoshikatsu Hashimoto, Eisuke Wayama 2005-09-20
6701892 Throttle valve control apparatus of internal combustion engine and automobile using the same Eisuke Wayama, Yoshikatsu Hashimoto, Shigeru Tokumoto, Yasuo Saito 2004-03-09
6694947 Throttle apparatus for an internal combustion engine Eisuke Wayama, Shigeru Tokumoto, Yasuo Saito 2004-02-24
6691678 Throttle assembly for internal combustion engine, and throttle sensor Yoshikatsu Hashimoto, Shigeru Tokumoto, Yasuo Saito, Eisuke Wayama 2004-02-17
6691681 Throttle apparatus for an internal combustion engine Eisuke Wayama, Shigeru Tokumoto, Yasuo Saito 2004-02-17
6684850 Electric-control-type throttle apparatus Takehiko Kowatari, Yuzo Kadomukai, Shigeru Tokumoto, Yasuo Saito, Masaru Ito 2004-02-03
6626143 Throttle device of internal combustion engine Eisuke Wayama, Yoshikatsu Hashimoto, Yasuo Saito 2003-09-30
6591809 Throttle device for internal-combustion engine Yasuo Saito, Yoshikatsu Hashimoto, Eisuke Wayama 2003-07-15
6559637 Non-contact rotational position sensor and throttle valve assembly including non-contact rotational position sensor Kenji Miyata, Satoshi Shimada, Fumio Tajima, Masanori Kubota 2003-05-06
6543416 Electric-control-type throttle apparatus Takehiko Kowatari, Yuzo Kadomukai, Shigeru Tokumoto, Yasuo Saito, Masaru Ito 2003-04-08
6488010 Throttle device for internal-combustion engine Yasuo Saito, Yoshikatsu Hashimoto, Eisuke Wayama 2002-12-03
6418908 Throttle apparatus for an internal combustion engine Eisuke Wayama, Shigeru Tokumoto, Yasuo Saito 2002-07-16
6401690 Electric-control-type throttle apparatus Takehiko Kowatari, Yuzo Kadomukai, Shigeru Tokumoto, Yasuo Saito, Masaru Ito 2002-06-11
6390062 Throttle device of internal combustion engine Yasuo Saito, Yoshikatsu Hashimoto, Eisuke Wayama 2002-05-21
6386182 Method and apparatus for controlling intake air flow rate of an engine and method for controlling output Takehiko Kowatari, Yuzo Kadomukai, Toshihiro Aono 2002-05-14
6382180 Throttle apparatus for an internal combustion engine Eisuke Wayama, Shigeru Tokumoto, Yasuo Saito 2002-05-07
6382181 Throttle apparatus for an internal combustion engine Eisuke Wayama, Shigeru Tokumoto, Yasuo Saito 2002-05-07