Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7150928 | Fuel cell drive system | Tadashi Matoba, Mitsutaka Abe | 2006-12-19 |
| 5770796 | Failure diagnosis device for a fuel pump | Atsuhiro Sakamoto, Toshikazu Oshidari, Iwane Inokuchi | 1998-06-23 |
| 5709197 | Fuel pump | Toshikazu Oshidari, Atsuhiro Sakamoto, Iwane Inokuchi | 1998-01-20 |
| 5700135 | Bellows cam plate pump | Iwane Inokuchi, Toshikazu Oshidari, Atsuhiro Sakamoto | 1997-12-23 |
| 5687808 | Four wheel drive mechanism | Jun Watanabe, Kenro Takahashi, Yorihito Nakao, Naohiko Inoue | 1997-11-18 |
| 5291864 | System for driving engine accessories of internal combustion engine | Takashi Suga | 1994-03-08 |
| 5080055 | Variable valve timing arrangement for internal combustion engine | Hiroshi Komatsu, Kozaburo Okawa, Yutaka Matayoshi | 1992-01-14 |
| 5048474 | Valve train for automotive engine | Yutaka Matayoshi, Shigeru Sakuragi, Hiroshi Komatsu, Kozaburo Okawa | 1991-09-17 |
| 5038732 | Internal combustion engine cylinder head | Yutaka Matayoshi, Shigeo Muranaka | 1991-08-13 |
| 4944256 | Rocker arm arrangement for internal combustion engine poppet valves and the like | Yutaka Matayoshi, Yasuhiko Nakagawa, Kyugo Hamai | 1990-07-31 |
| 4928650 | Operating arrangement for internal combustion engine poppet valves and the like | Yutaka Matayoshi, Toru Yoshimura, Kyugo Hamai | 1990-05-29 |
| 4881497 | Valve operating system for internal combustion engine | Yutaka Matayoshi | 1989-11-21 |
| 4873953 | Induction port arrangement for internal combustion engine having multiple inlet valves per combustion chamber | Shigeo Muranaka, Kouzaburou Ohkawa, Junichi Yokoyama, Yutaka Matayoshi | 1989-10-17 |
| 4825822 | Rocker arm arrangement for multi-valve internal combustion engine | Shigeo Muranaka, Tooru Yoshimura, Yutaka Matayoshi | 1989-05-02 |
| 4791893 | Valve train arrangement for multi-valve engine | Shigeo Muranaka, Yutaka Matayoshi | 1988-12-20 |
| 4726341 | Induction arrangement for internal combustion engine having multiple inlet valves per cylinder | Shigeo Muranaka | 1988-02-23 |