Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5060476 | Differential area motor circuit for hydrostatic transmission control | Junichi Miyake, Kazuya Maki | 1991-10-29 |
| 5040114 | Method of controlling continuously variable transmission in combination with engine throttle control | Yoshikazu Ishikawa | 1991-08-13 |
| 5014574 | Speed control apparatus for a continuously variable speed | Koji Sasajima, Kazuya Maki | 1991-05-14 |
| 4995470 | Control apparatus for hydraulic continuously variable speed transmission | Kazuya Maki | 1991-02-26 |
| 4970862 | Hydraulic continuously variable speed transmission | Kazuya Maki, Takeo Suzuta | 1990-11-20 |
| 4967610 | Method of controlling speed reduction ratio for continuously variable speed transmission | Koji Sasajima | 1990-11-06 |
| 4962679 | Method of controlling speed reduction ratio for a continuously variable speed transmission | Yoshikazu Ishikawa, Koji Sasajima | 1990-10-16 |
| 4961315 | Method of controlling speed reduction ratio of continuously variable speed transmission | Yoshikazu Ishikawa | 1990-10-09 |
| 4958495 | Hydraulic differential cylinder | — | 1990-09-25 |
| 4958492 | Method of controlling clutch operation for a vehicle and method of determining clutch engagement completion | Kazuya Maki, Yoshikazu Ishikawa, Koji Sasajima | 1990-09-25 |
| 4958494 | Controller for continuously variable speed transmission | Kazuya Maki | 1990-09-25 |
| 4956972 | Method of controlling speed reduction ratio for a continuously variable speed transmission | Koji Sasajima | 1990-09-18 |
| 4941371 | Hydraulic continuously variable speed transmission with direct clutch valve | Hideo Koyama, Koji Sasajima, Kazuya Maki, Yoshikazu Ishikawa | 1990-07-17 |
| 4932208 | Hydraulic continuously variable speed transmission with direct clutch valve | Hideo Koyama, Yoshikazu Ishikawa, Koji Sasajima | 1990-06-12 |
| 4913005 | Method of controlling speed reduction ratio for a continuously variable speed transmission | Yoshikazu Ishikawa, Koji Sasajima | 1990-04-03 |
| 4881428 | Throttle valve control apparatus for internal combustion engine | Yoshikazu Ishikawa, Kouji Sasajima | 1989-11-21 |
| 4860708 | Throttle control system for automotive internal combustion engine | Yoshikazu Ishikawa, Toshihiro Kameda, Shogo Hattori, Junichi Miyake | 1989-08-29 |
| 4815288 | Non-step hydraulic transmission | Noboru Yamamoto | 1989-03-28 |
| 4799467 | Throttle valve control system for an internal combustion engine | Yoshikazu Ishikawa | 1989-01-24 |
| 4791902 | Throttle valve control system for an internal combustion engine | Yoshikazu Ishikawa | 1988-12-20 |
| 4787353 | Throttle valve control apparatus for an internal combustion engine mounted on a vehicle | Yoshikazu Ishikawa | 1988-11-29 |
| 4781162 | Throttle valve control system for an internal combustion engine | Yoshikazu Ishikawa | 1988-11-01 |
| 4765296 | Throttle valve control for internal combustion engine | Yoshikazu Ishikawa, Takeo Suzuta | 1988-08-23 |
| 4765295 | Throttle valve controller for internal combustion engine | Yoshikazu Ishikawa, Takeo Suzuta | 1988-08-23 |
| 4655330 | Direct-coupling control system for torque converter in automatic transmission for vehicles | Masao Nishikawa, Yoshimi Sakurai, Takashi Aoki | 1987-04-07 |