Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33538 | Valve operation control device for internal combustion engines | Yoshikatsu Nakano | 1991-02-19 |
| RE33499 | Method and apparatus for the control of valve operations in internal combustion engine | Yoshikatsu Nakano | 1990-12-18 |
| 4951621 | Four stroke internal combustion engine | Takao Tomita, Makoto Hirano, Masao Handa, Tomoo Shiozaki | 1990-08-28 |
| 4903651 | Rocker arm clearance removing device | Yoichi Ishida, Kentaro Kato, Takashi Kanbe | 1990-02-27 |
| 4887567 | Connecting arrangement in valve operating system for internal combustion engine | Masaharu Nakamori, Masahiro Kuroki, Mitsuru Ishikawa | 1989-12-19 |
| 4858577 | Rotary valve device for internal combustion engines | Mitsuru Ishikawa, Masaharu Nakamori, Masahiro Kuroki | 1989-08-22 |
| 4779589 | Control apparatus for intake and exhaust valves of an internal combustion engine | Yoshikatsu Nakano | 1988-10-25 |
| 4776306 | Valve operating system for internal combustion engine | Masaharu Nakamori, Masahiro Kuroki | 1988-10-11 |
| 4741299 | Internal combustion engine | Masaharu Nakamori, Shoichi Honda, Yoichi Ishida, Tetsuya Nakanishi | 1988-05-03 |
| 4671228 | Four stroke internal combustion engine | Takao Tomita, Makoto Hirano, Masao Handa, Tomoo Shiozaki | 1987-06-09 |
| 4587936 | Control apparatus for intake and exhaust valves of an internal combustion engine | Yoshikatsu Nakano | 1986-05-13 |
| 4545342 | Method and apparatus for the control of valve operations in internal combustion engine | Yoshikatsu Nakano | 1985-10-08 |
| 4537164 | Valve actuating apparatus | Yoshio Ajiki | 1985-08-27 |
| 4537165 | Valve actuating mechanism having stopping function for internal combustion engines | Shoichi Honda, Yoshikatsu Nakano, Makoto Hirano | 1985-08-27 |
| 4535732 | Valve disabling device for internal combustion engines | Yoshikatsu Nakano | 1985-08-20 |
| 4523550 | Valve disabling device for internal combustion engines | Shoichi Honda, Yoshikatsu Nakano, Hirano Makota | 1985-06-18 |
| 4515121 | Valve driving control apparatus in an internal combusiton engine | Yoshikatsu Nakano | 1985-05-07 |
| 4497288 | Intake device for an engine | Yoshikatsu Nakano, Minoru Akiyama | 1985-02-05 |
| 4480617 | Valve operation control apparatus in internal combustion engine | Yoshikatsu Nakano | 1984-11-06 |
| 4475497 | Internal combustion engine having an intake/exhaust valve assembly and hydraulic means for rendering the valve assembly inoperative | Shoichi Honda, Nobuo Anno | 1984-10-09 |
| 4469061 | Valve actuating method for internal combustion engine with valve operation suspending function | Yoshio Ajiki, Shoichi Honda | 1984-09-04 |
| 4442806 | Valve driving control apparatus in an internal combustion engine | Yoshikatsu Nokano | 1984-04-17 |
| 4417442 | Exhaust gas cleaning system for an internal combustion engine | Yasuo Ikenoya, Makoto Hirano, Yoji Shimizu | 1983-11-29 |