FY

Fumitomo Yokoyama

AC Aisin Aw Co.: 13 patents #126 of 2,011Top 7%
AI Aisin-Warner: 9 patents #17 of 98Top 20%
TO Toyota: 8 patents #3,629 of 26,838Top 15%
NO Nok: 1 patents #382 of 725Top 55%
Overall (All Time): #186,857 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
5964335 Parking device for automatic transmission Takao Taniguchi, Kazumasa Tsukamoto, Kazuhisa Ozaki, Akihiro Kuroyanagi, Akihito Hongoya +8 more 1999-10-12
5960919 Automatic transmission with a separator for removing oil from the surface of a rotary member Kazuhisa Ozaki, Akihiro Kuroyanagi, Makoto Hijikata, Katsuyuki Asaoka, Akihito Hongoya +3 more 1999-10-05
5954177 Oil seal for automatic transmission Kazuhisa Ozaki, Masanori Kadotani, Mikio Iwase, Harumichi Tsuboi, Makoto Hijikata +8 more 1999-09-21
5947856 Control system for automatic transmission, including coordinated frictional engagement element release control Atsushi Tabata, Hideki Miyata, Yasuo Hojo, Masahiko Ando, Kazuhisa Ozaki +3 more 1999-09-07
5865702 Oil temperature responsive hydraulic control system for an automatic transmission Kazuhisa Ozaki, Masahiko Ando, Akira Fukatsu, Makoto Hijikata, Toshiyuki Mae +5 more 1999-02-02
5788034 Lockup clutch for a torque converter and method of thermally treating a lockup clutch piston Michio Maruki, Takao Taniguchi, Masataka Shimazaki, Hideji Kato, Kouji Ohbayashi +3 more 1998-08-04
5584775 Automatic transmission for transverse engine vehicle Masakatsu Miura, Masayuki Tsurumi 1996-12-17
5006102 Floating structure for interconnecting three clutches with a single actuator in an automatic transmission Isao Takase, Haruki Takemoto, Mitsugu Tatsuta, Shinobu Maseki, Takenori Kano +1 more 1991-04-09
4974696 Power transmission device for four wheel drive vehicles Shin Miyajima, Takenori Kano, Yasunari Nakamura, Masaharu Tanaka, Koujiro Kuramochi 1990-12-04
4957195 Hydraulic device for an automatic transmission Takenori Kano, Haruki Takemoto, Mamoru Niimi, Isao Takase 1990-09-18
4942782 Reverse shift control device on automatic transmission Yoshinari Kuwayama, Masakatsu Miura 1990-07-24
4934218 Hydraulic control device for an automatic transmission Isao Takase, Takenori Kano, Haruki Takemoto, Mamoru Niimi 1990-06-19
4911000 Rotation detecting device of an automatic transmission Isao Takase, Takenori Kano, Haruki Takemoto, Mamoru Niimi 1990-03-27
4909345 Power transmission device for four wheel drive vehicles Tatsuya Iwatsuki, Takenori Kano, Yasunari Nakamura, Isamu Minemoto, Teruo Akashi +2 more 1990-03-20
4903798 Hydraulic apparatus for an automatic transmission Haruki Takemoto, Takenori Kano, Mamoru Niimi, Isao Takase 1990-02-27
4903550 Hydraulic control device for automatic transmission Yoshinari Kuwayama 1990-02-27
4889016 Hydraulic servo regulating systems in an automatic transmission Yoshinari Kuwayama, Masakatsu Miura 1989-12-26
4875392 Manual valve in an automatic transmission Yoshinari Kuwayama, Masakatsu Miura 1989-10-24
4850251 Hydraulic control device for automatic transmission Yoshinari Kuwayama, Masakatsu Miura 1989-07-25
4839041 Magnetic oil strainer Yoshinari Kuwayama, Koujiro Kuramochi, Tatsuo Kyushima 1989-06-13
4683903 Governor valve Yoshinari Kuwayama, Mitsugu Tatsuta, Koujiro Kuramochi 1987-08-04
4645441 Internal-gear pump with partition plate having a chamfered edge Ryoichi Shirai, Koujiro Kuramochi 1987-02-24
4315519 Governor hydraulic pressure supply apparatus for automatic transmissions Nobuaki Miki, Shiro Sakakibara 1982-02-16