Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263668 | Engine exhaust gas control system having NOx catalyst | Yukihiro Yamashita | 2001-07-24 |
| 6230558 | Apparatus and method for measuring fuel flow rate and residual fuel quantity and for controlling evaporated fuel | Makoto Miwa, Toshihiko Muramatsu, Kazuji Managawa, Takeshi Matsuda, Takahiko Kato | 2001-05-15 |
| 6223731 | Fuel feeding apparatus with response delay compensation | Naoki Yoshiume | 2001-05-01 |
| 6148803 | Leakage diagnosing device for fuel evaporated gas purge system | Yoshihiro Majima, Takeshi Fujimoto, Keiji Wakahara, Junya Morikawa, Makoto Miwa | 2000-11-21 |
| 6148612 | Engine exhaust gas control system having NOx catalyst | Yukihiro Yamashita | 2000-11-21 |
| 6014958 | Antidissipation apparatus for evaporated fuel vapor | Makoto Miwa, Toshihiko Muramatsu, Kazuji Minagawa, Takeshi Matsuda, Takahiko Kato | 2000-01-18 |
| 5931136 | Throttle control device and control method for internal combustion engine | Daiji Isobe | 1999-08-03 |
| 5845492 | Internal combustion engine control with fast exhaust catalyst warm-up | Daiji Isobe, Kenichi Sago | 1998-12-08 |
| 5845489 | Abnormality detector for air-fuel ratio control system | Hisayo Dohta, Katsuhiko Kawai | 1998-12-08 |
| 5784879 | Air-fuel ratio control system for internal combustion engine | Hisayo Dohta, Katsuhiko Kawai | 1998-07-28 |
| 5785025 | Fuel supply for international combustion engine | Naoki Yoshiume, Makoto Miwa | 1998-07-28 |
| 5731514 | Abnormality detecting apparatus for use in fuel-transpiration preventing systems | Makoto Miwa, Teruo Nishio | 1998-03-24 |
| 5719778 | Heater control apparatus for oxygen sensor | Toshihiro Suzumura, Tomomichi Mizoguchi, Yukihiro Yamashita, Jun Hasegawa | 1998-02-17 |
| 5622047 | Method and apparatus for detecting saturation gas amount absorbed by catalytic converter | Yukihiro Yamashita, Kenji Ikuta | 1997-04-22 |
| 5547552 | Oxygen concentration detecting apparatus | Jun Hasegawa, Tomomichi Mizoguchi, Yasutaka Nakamori | 1996-08-20 |
| 5537967 | Vibration damping control apparatus for vehicle | Hiroshi Tashiro, Hiroyuki Aota, Takaji Murakawa, Toyoji Yagi | 1996-07-23 |
| 5491975 | Air-fuel ratio control system for internal combustion engine | Yukihiro Yamashita, Kenji Ikuta | 1996-02-20 |
| 5487270 | Air-fuel ratio control system for internal combustion engine | Yukihiro Yamashita, Kenji Ikuta | 1996-01-30 |
| 5460148 | Assist air control system for internal combustion engine | Toshihiro Suzumura, Hisashi Iida, Keigi Honjoh, Kenji Ikuta | 1995-10-24 |
| 5458098 | Method and system for starting automotive internal combustion engine | Toyoji Yagi | 1995-10-17 |
| 5441032 | Fuel injection system for multi-cylinder internal combustion engine | Kenji Ikuta, Toshihiro Suzumura, Keigi Honjoh | 1995-08-15 |
| 5405521 | Oxygen concentration measuring device | Yasutaka Nakamori, Tomomichi Mizoguchi, Toshihiro Suzumura | 1995-04-11 |
| 5390644 | Method for producing fuel/air mixture for combustion engine | Naochika Nunogaki, Minoru Ohta, Hirokatsu Mukai, Makoto Shirai, Toshihiro Suzumura +3 more | 1995-02-21 |
| 5385133 | Fuel injection system for internal combustion engine | Kenji Ikuta, Toshihiro Suzumura | 1995-01-31 |
| 5363832 | Fuel vapor purging control system with air/fuel ratio compensating system for internal combustion engine | Toshihiro Suzumura, Hisashi Iida, Toshio Kondo | 1994-11-15 |