HT

Hidekazu Tokushima

HC Hitachi Powdered Metals Co.: 8 patents #15 of 246Top 7%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
HC Hitachi Chemical Company: 3 patents #513 of 1,946Top 30%
MC Minebea Co.: 2 patents #245 of 736Top 35%
📍 Kashiwa, JP: #100 of 653 inventorsTop 20%
Overall (All Time): #417,449 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
10150162 Iron-based sintered alloy for sliding member and production method therefor Hideaki Kawata 2018-12-11
9637811 Iron-based sintered sliding member and production method therefor Daisuke Fukae, Hideaki Kawata 2017-05-02
9631669 Oil-impregnated sintered bearing and production method therefor Naoki Nishizawa, Hideaki Kawata 2017-04-25
9441286 Oil-impregnated sintered bearing and production method therefor Naoki Nishizawa, Takeshi Yanase 2016-09-13
9404535 Sliding bearing assembly Hideaki Kawata, Daisuke Fukae, Osamu Mawatari, Hideki Akita, Makoto Sugaya +3 more 2016-08-02
6851859 Bearing unit, production method therefor and spindle motor Toshikazu Takehana, Hideo Shikata, Katsutoshi Nii, Jun Hirose 2005-02-08
6822358 Spindle motor and manufacture thereof Tsutomu Nozaki, Tadayoshi Yano, Toshikazu Takehana, Yuji Yoshitomi 2004-11-23
6756715 Spindle motor Jun Hirose, Katsutoshi Nii, Tadayoshi Yano, Toshikazu Takehana 2004-06-29
6737016 Process for manufacturing sintered slide bearing Hideo Shikata, Tadayoshi Yano 2004-05-18
5834870 Oil impregnated porous bearing units and motors provided with same Motohiro Miyasaka, Michihiro Aizawa, Hideo Shikata, Katsutoshi Nii 1998-11-10
5821655 Magnetic fluid bearing unit structure and motor having the same Motohiro Miyasaka, Michihiro Aizawa, Hideo Shikata, Katsutoshi Nii 1998-10-13
5645355 Bearing unit Motohiro Miyasaka, Michihiro Aizawa, Hideo Shikata, Katsutoshi Nii 1997-07-08