Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046462 | Rocker arm arrangement for variable valve timing type internal combustion engine valve train | Yutaka Matayoshi, Makoto Nakamura, Shigeru Sakuragi | 1991-09-10 |
| 5042437 | Rocker arm arrangement for variable timing valve train | Shigeru Sakuragi, Yutaka Matayoshi | 1991-08-27 |
| 5038732 | Internal combustion engine cylinder head | Yutaka Matayoshi, Shigeru Kamegaya | 1991-08-13 |
| 4873953 | Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber | Kouzaburou Ohkawa, Junichi Yokoyama, Yutaka Matayoshi, Shigeru Kamegaya | 1989-10-17 |
| 4825822 | Rocker arm arrangement for multi-valve internal combustion engine | Shigeru Kamegaya, Tooru Yoshimura, Yutaka Matayoshi | 1989-05-02 |
| 4791893 | Valve train arrangement for multi-valve engine | Shigeru Kamegaya, Yutaka Matayoshi | 1988-12-20 |
| 4726341 | Induction arrangement for internal combustion engine having multiple inlet valves per cylinder | Shigeru Kamegaya | 1988-02-23 |
| 4370964 | Spark ignition timing control system for an internal combustion engine | Kunihiko Sugihara, Kiyoshi Takeuchi | 1983-02-01 |
| 4364259 | Vibration sensor for an automotive vehicle engine | Michio Onoda | 1982-12-21 |
| 4337640 | Knocking sensor | Michio Onoda, Kunihiko Sugihara | 1982-07-06 |
| 4337641 | Device for detecting engine knock | Kunihiko Sugihara, Kenji Yoneda | 1982-07-06 |
| 4329955 | Combustion chamber of an internal combustion engine | Yasuo Nakajima | 1982-05-18 |