Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4714056 | Two-cycle engine | Takumi Tottori, Kenji Oki, Kazuo Ooyama | 1987-12-22 |
| 4711201 | Two-cycle engine | Kazuo Ooyama, Kenji Ooki | 1987-12-08 |
| 4706617 | Two-cycle engine | Masahiro Asai, Toshiro Kawai, Shigemitsu Akutsu, Yoshiaki Uozumi | 1987-11-17 |