Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5159910 | Lubricating apparatus for internal combustion engine | Masakazu Ninomiya, Satoshi Nakagawa | 1992-11-03 |
| 4814997 | Method and apparatus for estimating an atmospheric pressure based on an intact air pressure at a certain time | Toshimi Matsumura, Hisanori Kobayashi | 1989-03-21 |
| 4736302 | Control system for determining the quantity of intake air of an internal combustion engine | Masumi Kinugawa, Tomoaki Abe, Katsunori Ito, Susumu Akiyama, Yuzi Hirabayashi | 1988-04-05 |
| 4730255 | Engine control apparatus | Susumu Akiyama, Ito Katsunori, Yuzi Hirabayashi, Masumi Kinugawa | 1988-03-08 |
| 4723523 | Air/fuel ratio control system for internal combustion engine | Masahiro Kataoka, Masakazu Ninomiya | 1988-02-09 |
| 4713765 | Control system for an engine having an air intake passage | Tomoaki Abe, Hideya Fujisawa, Masumi Kinugawa, Katsunori Ito, Susumu Akiyama +2 more | 1987-12-15 |
| 4671242 | Engine control apparatus | Susumu Akiyama, Katsunori Ito, Yuzi Hirabayashi, Masumi Kinugawa | 1987-06-09 |
| 4590563 | Method and apparatus for controlling internal combustion engine | Toshimi Matsumura, Hisanori Kobayashi | 1986-05-20 |
| 4572122 | Method of controlling internal combustion engine | Kenichiro Kamai, Masumi Kinugawa, Mitsunori Takao | 1986-02-25 |
| 4566419 | Apparatus and method for controlling air-to-fuel ratio for an internal combustion engine | Masakazu Ninomiya, Hideya Fujisawa, Atsushi Suzuki | 1986-01-28 |
| 4553518 | Air-fuel ratio control for an exhaust gas recirculation engine | Mitsunori Takao, Takahiko Kimura | 1985-11-19 |
| 4528960 | Fuel injection mode control for multi-cylinder internal combustion engine | Toshiaki Mizuno, Masumi Kinugawa | 1985-07-16 |
| 4510910 | Ignition timing control method and apparatus for internal combustion engines | Masakazu Ninomiya, Toshi Suda, Susumu Akiyama, Hiroyasu Fukaya | 1985-04-16 |
| 4501250 | Method and apparatus for controlling an internal combustion engine | Tsutomu Tabe, Katsunori Ito, Shuukichi Hayashi | 1985-02-26 |
| 4470390 | Method and apparatus for controlling an internal combustion engine equipped with a supercharger | Masakazu Ninomiya | 1984-09-11 |
| 4446832 | Method and system for controlling the idle speed of an internal combustion engine at variable ignition timing | Toshimi Matsumura, Hideya Fujisawa, Takashi Arimura, Hisamitsu Yamazoe, Kiyotaka Nishiura | 1984-05-08 |
| 4444168 | Engine idling speed control method and apparatus | Toshimi Matsumura | 1984-04-24 |
| 4428342 | Method and system for operating an internal combustion engine at optimum torque | Atsushi Suzuki, Masakazu Ninomiya, Susumu Akiyama, Yuji Hirabayashi | 1984-01-31 |
| 4399698 | Gas flow measuring apparatus | Syunichiro Hiromasa, Yutaka Kawashima, Yukio Muto | 1983-08-23 |
| 4344399 | Method and apparatus for controlling engine idling speed | Toshimi Matsumura, Hisamitsu Yamazoe | 1982-08-17 |
| 4331318 | Magnetic type fuel injection valve | Kenichiro Kamai, Shinichi Nishioka | 1982-05-25 |
| 4331317 | Magnetic type fuel injection valve | Kenichiro Kamai, Shinichi Nishioka | 1982-05-25 |
| 4289100 | Apparatus for controlling rotation speed of engine | Masumi Kinugawa, Motoharu Sueishi | 1981-09-15 |
| 4268910 | Method for controlling timing of spark ignition for an internal combustion engine by feedback related to the detection of knocking | Hideya Fujisawa, Yutaka Kawashima, Masakazu Ninomiya, Hisasi Kawai, Takeshi Matsui | 1981-05-19 |
| 4259723 | Method for controlling operations of a combustion engine | Hideya Fujisawa, Hisamitsu Yamazoe, Matuju Yoshida | 1981-03-31 |