SK

Seitoku Kubo

TO Toyota: 76 patents #59 of 26,838Top 1%
AI Aisin-Warner: 18 patents #8 of 98Top 9%
AC Aisin Aw Co.: 6 patents #321 of 2,011Top 20%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
AK Aisin-Warner K.K.: 1 patents #10 of 20Top 50%
TK Toyoda Koki Kabushiki Kaisha: 1 patents #307 of 674Top 50%
📍 Sakae, JP: #1 of 53 inventorsTop 2%
Overall (All Time): #22,307 of 4,157,543Top 1%
81
Patents All Time

Issued Patents All Time

Showing 26–50 of 81 patents

Patent #TitleCo-InventorsDate
4875665 Accumulator Eiji Kato, Masanori Kadotani, Yoshikazu Sakaguchi, Kunihiro Iwatsuki, Hiroji Taniguchi +1 more 1989-10-24
4866935 Hydraulic torque converter Masahiro Hayabuchi, Kazumasa Tsukamoto, Tokuyuki Takahashi, Koujiro Kuramochi 1989-09-19
4856381 Fluid pressure control system for automatic transmission Makoto Funahashi, Shinya Nakamura 1989-08-15
4854195 Hydraulic control system for vehicular automatic transmission with two accumulator control values to vary back pressure to accumulator to follow the change in engine torque Shuzo Moroto, Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga 1989-08-08
4836050 Transverse type automatic transmission with two separate lay shaft elements Akio Numazawa, Koujiro Kuramochi 1989-06-06
4817472 Transmission control system with protection against excessively high speed downshifting Koujiro Kuramochi, Tatsuo Kyushima 1989-04-04
4803901 Method and system for detecting the rotation rate of the output shaft of a torque converter Yukio Hamano, Yutaka Taga 1989-02-14
4783960 Fluid torque converter with axially cut away stator inner shell Koujiro Kuramochi, Tokuyuki Takahashi 1988-11-15
4768399 Four wheel drive power transmission system with clutch between central torque non balanced differential device and one wheel pair Yutaka Taga, Kunio Morisawa 1988-09-06
4768609 Four wheel drive vehicle central differential torque transfer control device and method limiting torque on front wheels or on rear wheels Yutaka Taga 1988-09-06
4768633 Torque converter lock up clutch rotary shock absorber with inner plate element location construction Koujiro Kuramochi, Tatsuo Kyushima 1988-09-06
4763748 Four-wheel drive vehicle Masakatsu Miura, Tatsuya Iwatsuki 1988-08-16
4763749 Four-wheel drive vehicle Masakatsu Miura, Tatsuya Iwatsuki 1988-08-16
4753132 Hydraulic servo for friction coupling devices of automatic transmissions Koji Sumiya, Koji Kobayashi, Haruki Takemoto, Yutaka Taga, Kazuaki Watanabe 1988-06-28
4748809 Hydraulic servo mechanism of automatic transmission for vehicle Koji Sumiya, Yoshikazu Sakaguchi, Yutaka Taga, Shuzo Moroto 1988-06-07
4739678 Oil separating structure of automatic transmission Masakatsu Miura, Takeshi Inuzuka, Tatsuya Iwatsuki, Koujiro Kuramochi 1988-04-26
4733580 Method of controlling a transmission of a vehicle in two different modes according to requirements for power and economy Yutaka Taga, Shinya Nakamura, Hideki Yasue 1988-03-29
4726254 Four wheel drive power transmission system with front universal joint of front propeller shaft located towards gearbox from engine Yutaka Taga, Kunio Morisawa 1988-02-23
4721011 Four wheel drive power transmission system with front propeller shaft including no universal joints connecting transfer device to front differential Yutaka Taga, Kunio Morisawa 1988-01-26
4714146 Friction coupling element of automatic transmission Shuzo Moroto, Koji Sumiya, Kazuaki Watanabe, Koji Kobayashi, Yutaka Taga 1987-12-22
4702341 Four wheel drive vehicle slippage control device and method limiting center differential action according to input torque supplied thereto Yutaka Taga, Yuji Kashihara, Kunio Morisawa, Mitsuru Takada, Yasunari Nakamura 1987-10-27
4702083 Control system and method for controllable output type hydraulic fluid pump of automatic transmission providing decreased pump output in association with the engine starting condition Shinya Nakamura, Yutaka Taga 1987-10-27
4693081 Control system and method for controlling output type hydraulic fluid pump of automatic transmission providing increased pump output pressure with increase in engine load Shinya Nakamura, Yutaka Taga 1987-09-15
4690037 Hydraulic servo for friction coupling element of automatic transmission Koji Sumiya, Kazuaki Watanabe 1987-09-01
4682534 Hydraulic servo for friction coupling element of automatic transmission Koji Sumiya, Takenori Kano, Kazuaki Watanabe 1987-07-28