TO

Toshiaki Oya

JT Jtekt: 16 patents #49 of 1,969Top 3%
KC Koyo Seiko Co.: 3 patents #150 of 749Top 25%
Overall (All Time): #231,410 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12409880 Steering system Yuuta KAJISAWA, Yuji Fujita, Kenichi Abe, Toshihiro Takahashi, Yoshinobu Shimizu +4 more 2025-09-09
10556621 Steering assist apparatus 2020-02-11
10315688 Vehicle steering device 2019-06-11
10293856 Vehicular steering system 2019-05-21
10137928 Steering assist device 2018-11-27
10011297 Vehicle steering device Kotaro Okada 2018-07-03
10000232 Steering assist device 2018-06-19
9914476 Vehicle steering system 2018-03-13
9896128 Steering assist device 2018-02-20
9150249 Steering assist device 2015-10-06
8593084 Auxiliary power supply device and electric power steering device 2013-11-26
8467938 Electric power steering apparatus 2013-06-18
7791293 Motor controller and electric power steering system Shigeki Nagase, Takeshi Ueda, Ken Matsubara, Yasuyuki Yoshii 2010-09-07
7711463 Electric power steering system Masahiko Sakamaki 2010-05-04
7604088 Electric power steering system Katsutoshi Nishizaki, Shirou Nakano, Ken Matsubara, Yasuhiro Kamatani, Masahiko Sakamaki +5 more 2009-10-20
7567055 Controller for brushless motor Yuji Kariatsumari 2009-07-28
7240761 Electric power steering apparatus Shigeki Nagase, Masahiko Sakamaki, Katsutoshi Nishizaki, Takeshi Ueda 2007-07-10
7174825 Hydraulic power steering apparatus Akihiko Shiina, Yasuhiro Kamatani, Ryouichi Tokioka, Kazuhiro Watanabe, Yoshimi Kotake +5 more 2007-02-13
6883637 Electric power steering device and control method utilized for controlling said electric power steering device Katsutoshi Nishizaki, Masahiko Sakamaki 2005-04-26