TM

Tatsuyoshi Maruyama

HS Hitachi Automotive Systems Steering: 10 patents #1 of 48Top 3%
UJ Unisia Jecs: 6 patents #38 of 395Top 10%
HA Hitachi Astemo: 2 patents #393 of 1,276Top 35%
HS Hitachi Automotive Systems: 2 patents #689 of 1,636Top 45%
UC Unisia Jkc Steering Systems Co.: 2 patents #2 of 19Top 15%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #182,197 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
11807312 Power steering device Keisuke KITAMURA, Kohtaro Shiino, Osamu Yoshida, Norihiro KIMURA 2023-11-07
11383758 Power steering apparatus Osamu Yoshida 2022-07-12
10814416 Method for producing threaded shaft for power steering device, and power steering device Atsushi Sato, Keisuke KITAMURA, Mitsuaki Abe, Tetsuya Yonezawa, Osamu Yoshida +1 more 2020-10-27
10464593 Power steering apparatus and method of manufacturing power steering apparatus Keisuke KITAMURA, Hiroyuki Sugiyama 2019-11-05
9919729 Power steering system Satoru Muto, Keisuke KITAMURA 2018-03-20
9694847 Torque detection structure for power steering device, and power steering device using same Osamu Yoshida, Kiyotaka Shirakubo 2017-07-04
9505431 Rotation detection device and power steering device Osamu Yoshida, Kiyotaka Shirakubo 2016-11-29
9448129 Torque sensor unit Osamu Yoshida 2016-09-20
9314835 Power steering apparatus and method of manufacturing power steering apparatus Keisuke KITAMURA, Satoru Muto 2016-04-19
9302700 Torque sensor and power steering system using the torque sensor Osamu Yoshida, Kiyotaka Shirakubo 2016-04-05
9212892 Steering angle sensor Naoki Takayanagi, Kiyotaka Shirakubo, Kohtaro Shiino 2015-12-15
9086269 Steering angle sensor and electric power steering device employing the same Naoki Takayanagi, Kiyotaka Shirakubo 2015-07-21
9004221 Torque sensor and power steering system using the torque sensor Osamu Yoshida, Kiyotaka Shirakubo, Kohtaro Shino, Makoto Kimura 2015-04-14
8579071 Power steering system and method for assembling the power steering system Osamu Yoshida, Kiyotaka Shirakubo, Naoki Takayanagi 2013-11-12
7469912 Bracket of steering rack housing Takahide Kaneko, Katsuhiro Hoshi 2008-12-30
7320480 Structure for fixing steering-gear housing Takahide Kaneko 2008-01-22
7036624 Power steering system Takahide Kaneko 2006-05-02
6105711 Power steering system Susumu KIMOTO, Takayuki Yoshida 2000-08-22
6041883 Flow controlling apparatus for power steering systems Tadaharu Yokota, Norihiro Saita, Toshinori Aihara 2000-03-28
6035958 Power assist apparatus for steering system Norihiro Saita, Toshinori Aihara, Tadaharu Yokota 2000-03-14
5975232 Power assisted steering apparatus for automotive vehicle Koichi Komatsu, Tadaharu Yokota, Toshinori Aihara, Norihiro Saita 1999-11-02
5950757 Power steering devices Norihiro Saita, Takayuki Yoshida, Tadaharu Yokota, Toshinori Aihara 1999-09-14
5921342 Power assisted steering apparatus for automotive vehicle Norihiro Saita, Tadaharu Yokota, Toshinori Aihara, Yukio Uchida 1999-07-13