TY

Tadaharu Yokota

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
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%
AC Atsugi Motor Parts Company: 1 patents #38 of 93Top 45%
HA Hitachi Unisia Automotive: 1 patents #26 of 62Top 45%
📍 Hitachinaka, JP: #209 of 2,447 inventorsTop 9%
Overall (All Time): #190,531 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
12384454 Steer-by-wire control device and steer-by-wire control method Shunsuke Aritomi, Yasuhito Nakakuki, Atsushi Hirata, Takahiro Ito, Kenta MAEDA 2025-08-12
11377136 Steering device Kohtaro Shiino 2022-07-05
8727453 Hydraulic pressure control apparatus Norihiro Saita, Taichi SHIBATA, Masamichi Imamura, Shinichiro Nishida, Satoshi Doi 2014-05-20
8550427 Normally-open solenoid valve including plunger formed with pressure receiving portion Keigo Yoshida, Norihiro Saita, Satoshi Doi 2013-10-08
7596441 Power steering device Kiyoshi Inoue, Toru Takahashi 2009-09-29
7387186 Power steering apparatus Jun Soeda 2008-06-17
7325645 Power steering device Toshimitsu Sakaki, Chiharu Nakazawa, Masakazu Kurata 2008-02-05
7213676 Power steering system Jun Soeda 2007-05-08
7155905 Power steering apparatus Masakazu Kurata 2007-01-02
7155906 Power steering system Jun Soeda 2007-01-02
7086494 Power steering system Masakazu Kurata, Michiya Hiramoto, Yukio Sudo 2006-08-08
6953102 Power steering system Masakazu Kurata, Michiya Hiramoto 2005-10-11
6886657 Power steering system Masakazu Kurata, Michiya Hiramoto, Yukio Sudo 2005-05-03
6880668 Power steering device Toshimitsu Sakaki, Chiharu Nakazawa, Masakazu Kurata 2005-04-19
6851507 Power steering system Masakazu Kurata, Michiya Hiramoto 2005-02-08
6568499 Power steering system for vehicles Chiharu Nakazawa, Toshimitsu Sakaki, Mitsuo Sasaki, Masakazu Kurata 2003-05-27
6041883 Flow controlling apparatus for power steering systems Tatsuyoshi Maruyama, Norihiro Saita, Toshinori Aihara 2000-03-28
6035958 Power assist apparatus for steering system Norihiro Saita, Tatsuyoshi Maruyama, Toshinori Aihara 2000-03-14
5975232 Power assisted steering apparatus for automotive vehicle Koichi Komatsu, Tatsuyoshi Maruyama, Toshinori Aihara, Norihiro Saita 1999-11-02
5950757 Power steering devices Norihiro Saita, Takayuki Yoshida, Tatsuyoshi Maruyama, Toshinori Aihara 1999-09-14
5921342 Power assisted steering apparatus for automotive vehicle Tatsuyoshi Maruyama, Norihiro Saita, Toshinori Aihara, Yukio Uchida 1999-07-13
5174338 Pressure control valve unit Koichi Komatsu 1992-12-29