Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350129 | Spark-ignition internal combustion engine capable of preventing noxious gas emissions | Yasuo Nakajima, Yoshimasa Hayashi, Tooru Yoshimura | 1982-09-21 |
| 4224792 | Internal combustion engine equipped with an improved air injection system | Yoshimasa Hayashi | 1980-09-30 |
| 4218880 | Spark-ignition internal combustion engine | Hiroshi Kuroda, Yasuo Nakajima, Yoshimasa Hayashi | 1980-08-26 |
| 4192262 | Control system for varying the amount of scavenging air to be admitted to internal combustion engine | Michio Onoda, Yasuo Nakajima, Kunihiko Sugihara | 1980-03-11 |
| 4185599 | Control system for varying the amount of scavenging air to be _admitted to internal combustion engine | Michio Onoda, Yasuo Nakajima, Kunihiko Sugihara | 1980-01-29 |