Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951621 | Four stroke internal combustion engine | Takao Tomita, Masaaki Matsuura, Makoto Hirano, Tomoo Shiozaki | 1990-08-28 |
| 4671228 | Four stroke internal combustion engine | Takao Tomita, Masaaki Matsuura, Makoto Hirano, Tomoo Shiozaki | 1987-06-09 |
| 4623173 | Screw joint coupling for oil pipes | Mikio Ueki, Tomohiko Tokuya, Mitsuaki Hori, Hidenori Yasuoka, Toshio Sato +2 more | 1986-11-18 |
| 4393677 | Plugs for use in piercing and elongating mills | Manabu Tamura, Yoshiki Kamemura | 1983-07-19 |