Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8727937 | Toroidal continuously variable transmission | Motoki Tabuchi | 2014-05-20 |
| 7740556 | Hydraulic control apparatus and hydraulic control method | Yuji Iwase, Hiroyuki Nishizawa, Kisaburo Hayakawa, Masataka Osawa | 2010-06-22 |
| 7503869 | Speed change control apparatus for toroidal CVT | Hiroyuki Nishizawa, Kisaburo Hayakawa, Shuzo Sanda, Masanobu Kimura, Masataka Osawa +3 more | 2009-03-17 |
| 6672981 | Transmission shift control apparatus arranged to perform compulsory shift-down action of continuously variable transmission | Daisuke Inoue, Hideki Yasue, Kunio Morisawa, Katsumi Kono, Tadashi Tamura +3 more | 2004-01-06 |
| 6565465 | Continuously variable belt transmission | Masabumi Nishigaya, Shinya Kuwabara, Shinji Kasuga, Shoichi Sayo, Hiroshi Morioka | 2003-05-20 |
| 5211083 | Hydraulic control apparatus for power transmitting system including belt-and-pulley type continuously variable transmission and torque converter equipped with lock-up clutch | Yuji Hattori, Yoshinobu Soga, Nobuyuki Kato | 1993-05-18 |
| 5207617 | Hydraulic control apparatus for continuously variable power transmitting system including reversing gear device and auxiliary transmission | Nobuyuki Kato, Yuji Hattori | 1993-05-04 |
| 5203233 | Hydraulic control apparatus for belt-and-pulley type continuously variable transmission, incorporating means for optimizing belt tensioning pressure | Yuji Hattori, Yoshinobu Soga, Nobuyuki Kato | 1993-04-20 |
| 5188007 | Hydraulic control apparatus for belt-and-pulley type continuously variable transmission, incorporating means for increasing belt tensioning pressure upon reversal of rotating direction of pulleys | Yuji Hattori, Yoshinobu Soga, Nobuyuki Kato | 1993-02-23 |
| 5119698 | Hydraulic control apparatus for continuously variable transmission, having shift control valve whose gain is changed with vehicle speed | Yoshinobu Soga | 1992-06-09 |
| 5094129 | Hydraulic control apparatus for vehicle continuously variable transmission, having means for limiting increase in input shaft speed after the speed rises to predetermined level with vehicle speed | Yoshinobu Soga | 1992-03-10 |
| 5088355 | Vehicle power transmitting system with continuously variable transmission and hydraulic control apparatus, capable of producing adequate engine braking during low-speed reverse running of vehicle | Yoshinobu Soga, Takahiro Okada | 1992-02-18 |
| 5063816 | Hydraulic control apparatus for vehicle continuously variable transmission, having two shift control valves selectively enabled depending upon selected position of clutch device between engine and drive wheel | Yoshinobu Soga | 1991-11-12 |
| 5052980 | Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission | Hiroshi Itoh, Yoshinobu Soga, Kunio Morisawa, Ryoji Habuchi, Katsumi Kouno +2 more | 1991-10-01 |
| 5050715 | Hydraulic control apparatus for vehicle power transmitting system having fluid coupling incorporating lock-up clutch | Hiroshi Itoh, Kunio Morisawa, Ryoji Habuchi, Yoshinobu Soga | 1991-09-24 |
| 5006093 | Hydraulic control apparatus for vehicle power transmitting system having continuously variable transmission | Hiroshi Itoh, Yoshinobu Soga, Kunio Morisawa, Ryoji Habuchi, Katsumi Kouno +1 more | 1991-04-09 |
| 4967621 | Hydraulic control device for belt-and-pulley type continuously variable transmission for a vehicle | Yoshinobu Soga, Katsumi Kouno, Susumu Okawa | 1990-11-06 |
| 4867732 | Control device for belt-and-pulley type continuously variable transmission for a vehicle | Yoshinobu Soga, Katsumi Kouno, Susumu Okawa | 1989-09-19 |
| 4857034 | Hydraulic control system for continuously variable transmission for automotive vehicle | Katsumi Kouno, Susumu Okawa, Yoshinobu Soga | 1989-08-15 |
| 4778435 | Hydraulic control system for continuously variable transmission for automotive vehicle | Katsumi Kouno, Yoshinobu Soga, Susumu Okawa | 1988-10-18 |
| 4772249 | Hydraulic control system for continuously variable transmission for automotive vehicle | Katsumi Kouno, Susumu Okawa, Yoshinobu Soga | 1988-09-20 |
| 4685357 | Continuously variable transmission hydraulic control system having two pressure regulating valves | Daisaku Sawada, Yoshinobu Soga, Ryuji Imai | 1987-08-11 |
| 4642069 | Hydraulic control system for continuously variable transmission | Daisaku Sawada, Ryuji Imai, Yoshinobu Soga | 1987-02-10 |
| 4551119 | Hydraulic apparatus for a continuously variable transmission | Daisaku Sawada, Susumu Okawa | 1985-11-05 |