Issued Patents All Time
Showing 51–75 of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814659 | Variable cross-section piezoelectric actuator | — | 1989-03-21 |
| 4718306 | Power transmission for use in automobiles continuously variable transmission | Takashi Shigematsu, Tomoyuki Watanabe, Setsuo Tokoro | 1988-01-12 |
| 4716790 | Continuously variable transmission control system responsive to passenger compartment noise or vibration | Takashi Shigematu, Setsuo Tokoro | 1988-01-05 |
| 4715258 | Power transmission for use in automobiles having continuously variable transmission | Takashi Shigematsu, Tomoyuki Watanabe, Setsuo Tokoro | 1987-12-29 |
| 4702725 | Hydraulic control system for continuously variable transmission | Katsumi Kouno | 1987-10-27 |
| 4685357 | Continuously variable transmission hydraulic control system having two pressure regulating valves | Masami Sugaya, Yoshinobu Soga, Ryuji Imai | 1987-08-11 |
| 4642069 | Hydraulic control system for continuously variable transmission | Masami Sugaya, Ryuji Imai, Yoshinobu Soga | 1987-02-10 |
| 4593582 | Continuously variable transmission means for use in vehicles | Takashi Shigematu, Setsuo Tokoro | 1986-06-10 |
| 4551119 | Hydraulic apparatus for a continuously variable transmission | Masami Sugaya, Susumu Okawa | 1985-11-05 |
| 4517648 | Torque variation detecting method and apparatus for internal combustion engine | Toshikazu Ina, Hisasi Kawai, Tokio Kohama, Hideki Obayashi, Takashi Shigematsu | 1985-05-14 |
| 4513721 | Air-fuel ratio control device for internal combustion engines | Toshikazu Ina, Hideki Obayashi, Hisasi Kawai, Tokio Kohama, Takashi Shigematsu | 1985-04-30 |
| 4478185 | Air-fuel ratio and ignition timing regulation by detecting engine running condition | Hideki Obayashi, Tokio Kohama, Hisasi Kawai, Toshikazu Ina, Takashi Shigematsu | 1984-10-23 |
| 4466405 | Feedback type ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Yoshinori Ootsuka, Kenji Goto | 1984-08-21 |
| 4413599 | Ignition timing control system in a spark ignition type internal combustion engine | Takashi Shigematsu, Tomoyuki Watanabe | 1983-11-08 |
| 4385606 | Ignition timing regulating device for internal combustion engine | Tadashi Hattori, Kenji Goto, Takashi Shigematu, Hiroaki Yamaguchi, Minoru Nishida | 1983-05-31 |
| 4378771 | System for controlling ignition timing in an engine | Takashi Shigematsu, Yuji Takeda | 1983-04-05 |
| 4328779 | Feedback type ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Yoshinori Ootsuka, Kenji Goto | 1982-05-11 |
| 4320729 | System for controlling ignition timing in engine | Takashi Shigematsu, Yuji Takeda | 1982-03-23 |
| 4307602 | Knock sensor | Juhei Takahashi, Tadayori Makino, Kenzo Miura | 1981-12-29 |
| 4302964 | Knock sensor | Juhei Takahashi, Kenzo Miura | 1981-12-01 |
| 4290398 | Ignition timing control system for internal combustion engine | Tadashi Hattori, Kenji Goto, Takashi Shigematu, Hiroaki Yamaguchi, Minoru Nishida +1 more | 1981-09-22 |
| 4275692 | System for controlling ignition timings in engine | Yuji Takeda, Takashi Shigematsu | 1981-06-30 |
| 4274379 | Method and system for controlling ignition timing of internal combustion engines | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Kenji Goto | 1981-06-23 |
| 4269155 | Ignition timing control system for internal combustion engines | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Kenji Goto | 1981-05-26 |
| 4269154 | Ignition timing control system for internal combustion engines | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Kenji Goto | 1981-05-26 |