Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5285840 | Method and apparatus for manufacturing piston of internal combustion engine | Masamichi Hayashi, Yasuhiro Kawabata, Takanori Kamiya | 1994-02-15 |
| 4730548 | Light metal alloy piston | Yorishige Maeda, Yoshiaki Tatematsu, Atsuo Tanaka | 1988-03-15 |
| 4669367 | Light metal alloy piston | Atsuo Tanaka, Yoshiaki Kajikawa, Yorishige Maeda, Tadashi Dohnomoto | 1987-06-02 |