Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5404854 | Knock control system for internal combustion engine | Koichi Kamabora, Koji Sakakibara, Hiroshi Haraguchi, Koichi Toyama, Toshihito Nonaka | 1995-04-11 |
| 4879550 | Method and system for loop communication | Yusuke Hino, Tohru Horimoto, Hideaki Gemma, Kimitoshi Yamada | 1989-11-07 |
| 4760828 | Ignition timing controller for multi-cylinder engine | Shiro Shimada, Hiroshi Haraguchi | 1988-08-02 |
| 4590565 | Ignition timing control for compensating knock in both steady-state and transient state | Yasuhito Takasu, Hiroshi Haraguchi, Katsuharu Hosoe | 1986-05-20 |
| 4541382 | Method and apparatus for ignition timing control of internal combustion engine | Katsuharu Hosoe, Yasuhito Takasu | 1985-09-17 |
| 4539957 | Ignition timing control system for internal combustion engines | Hiroshi Haraguchi, Ko Narita | 1985-09-10 |
| 4517944 | Ignition timing control for internal combustion engines | Shingo Inoue, Yasuhito Takasu | 1985-05-21 |
| 4513716 | Ignition timing control system with knock control for internal combustion engines | Hiroshi Haraguchi, Ko Narita | 1985-04-30 |
| 4498331 | Knocking detecting apparatus for internal combustion engines | Hirotoshi Nakamura, Teruyoshi Itoh, Hiroshi Haraguchi, Kou Narita, Takeshi Matsui | 1985-02-12 |
| 4489692 | Ignition timing control system for internal combustion engine with knock sensor | Hiroshi Haraguchi, Kou Narita, Yasutoshi Baba | 1984-12-25 |
| 4480615 | Method and apparatus for controlling ignition timing in a multicylinder internal combustion engine | Yasuhito Takasu, Shingo Inoue | 1984-11-06 |
| 4467764 | Method and apparatus for controlling ignition timing in a multicylinder internal combustion engine | Yasuhito Takasu, Katsuharu Hosoe | 1984-08-28 |
| 4453521 | Method and apparatus for controlling ignition timing in a multicylinder internal combustion engine | Yasuhito Takasu, Shingo Inoue | 1984-06-12 |
| 4452206 | Ignition timing control system for internal combustion engines | Hiroshi Haraguchi, Ko Narita | 1984-06-05 |
| 4452205 | Method and apparatus for controlling ignition timing in an internal combustion engine | Yasuhito Takasu, Katsuharu Hosoe | 1984-06-05 |
| 4432322 | Method and system for controlling ignition timing in a multicylinder internal combustion engine | Shingo Inoue, Yasuhito Takasu | 1984-02-21 |
| 4429565 | Knocking detecting apparatus for an internal combustion engine | Hiroo Utsumi, Yukio Sakakibara, Teruyoshi Ito, Jun Ohta, Kiyokane Kazi +2 more | 1984-02-07 |
| 4351282 | Ignition timing control system for internal combustion engine | Hiroo Utsumi, Yukio Sakakibara, Teruyoshi Ito, Takashi Yamada | 1982-09-28 |
| 4344014 | Ignition spark plug | Tadashi Hattori | 1982-08-10 |
| 4300490 | Air-fuel mixture ratio correcting system for carburetor | Tadashi Hattori, Shigetaka Takada, Kenji Hayashi | 1981-11-17 |
| 4274379 | Method and system for controlling ignition timing of internal combustion engines | Tadashi Hattori, Siniti Mukainakano, Kenji Goto, Daisaku Sawada | 1981-06-23 |
| 4269154 | Ignition timing control system for internal combustion engines | Tadashi Hattori, Siniti Mukainakano, Kenji Goto, Daisaku Sawada | 1981-05-26 |
| 4269155 | Ignition timing control system for internal combustion engines | Tadashi Hattori, Siniti Mukainakano, Kenji Goto, Daisaku Sawada | 1981-05-26 |
| 4267482 | Ignition spark plug | Tadashi Hattori | 1981-05-12 |
| 4261313 | Method of and apparatus for controlling ignition timing of an internal-combustion engine | Tadashi Hattori, Siniti Mukainakano, Kenji Goto, Daisaku Sawada | 1981-04-14 |