HK

Hitoshi Kubota

Nissan Motor Co.: 30 patents #97 of 8,689Top 2%
HI Hitachi: 21 patents #1,645 of 28,497Top 6%
KT Kabushiki Kaisha Toshiba: 11 patents #2,779 of 21,451Top 15%
Canon: 10 patents #6,241 of 19,416Top 35%
Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%
NC Nippon Air Brake Co.: 7 patents #7 of 107Top 7%
SO Sony: 4 patents #8,966 of 25,231Top 40%
RT Renesas Technology: 3 patents #990 of 3,337Top 30%
TO Tokico: 3 patents #85 of 359Top 25%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
JC Jidosha Kiki Co.: 1 patents #106 of 196Top 55%
UJ Unisia Jecs: 1 patents #221 of 395Top 60%
HH Hitachi High-Technologies: 1 patents #1,282 of 1,917Top 70%
NE Nec: 1 patents #7,889 of 14,502Top 55%
JO Joled: 1 patents #250 of 392Top 65%
Rohm Co.: 1 patents #1,438 of 2,292Top 65%
📍 Tsukuba, JP: #4 of 2,818 inventorsTop 1%
Overall (All Time): #14,534 of 4,157,543Top 1%
100
Patents All Time

Issued Patents All Time

Showing 76–100 of 100 patents

Patent #TitleCo-InventorsDate
4659150 Electronic control system for automotive brake system for controlling brake pressure in accordance with vehicular load Hideaki Oda 1987-04-21
4633757 Brake booster 1987-01-06
4610338 Brake device for controlling brake operation on inclines Tadaaki Otokuni, Shoji Suzuki, Keiji Nakagawa 1986-09-09
4602482 Cap seal structure in reservoir tank for master cylinder Sachio Ohno 1986-07-29
4571944 Blow-off valve in a quick take-up master cylinder 1986-02-25
4571006 Brake pressure control valve of a double piping system Teluo Yambe, Akira Ishii, Toshiyuki Takahashi 1986-02-18
4560208 Brake pressure control unit of deceleration-responsive type 1985-12-24
4536419 Method for forming tapered films Minoru Tanaka, Susumu Aiuchi 1985-08-20
4514984 Reservoir tank structure for master cylinder 1985-05-07
4509800 Brake pressure control valve of a double piping system 1985-04-09
4502735 Deceleration-sensitive type hydraulic brake pressure control valve for automotive vehicle 1985-03-05
4500761 Fluid reservoir with fluid-level sensor Seiji Hamamatsu, Teluo Yambe, Toshiyuki Takahashi 1985-02-19
4472940 Tandem master cylinder 1984-09-25
4437310 Tandem master cylinder with a pressure regulating valve for an automotive vehicle brake system Katuhiro Morita 1984-03-20
4385786 Hydraulic pressure control valve for a double piping braking system 1983-05-31
4385495 Fluid reservoir for tandem master cylinder 1983-05-31
4356729 Fluid level detector Toshiyuki Takahashi 1982-11-02
4355512 Reservoir for use with tandem master cylinder Toshiyuki Takahashi, Yoshihiro Hayashida 1982-10-26
4353600 Non-linkage type load sensing valve Tatsuo Uchihara, Tadao Takimoto, Junichi Fujimoto, Katuhiro Morita 1982-10-12
4319456 Tandem master cylinder with a liquid pressure control valve 1982-03-16
4312543 Control device for a vehicle hydraulic braking system 1982-01-26
4305285 Liquid level detecting and warning device Hironori Kutsuma, Toshiyuki Takahashi 1981-12-15
4301440 Level detecting device Yoshihiro Hayashida, Hironori Kutsuma 1981-11-17
4284307 Hydraulic pressure control valve assembly for automotive hydraulic brake system Kazuaki Shimizu 1981-08-18
4251117 Hydraulic pressure control valve for double piping braking system Katsuyuki Yoshizawa 1981-02-17