Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5080378 | Silicon carbide sintered body for mechanical seal and mechanical seal using the same | — | 1992-01-14 |
| 4783041 | Mold for molding optical disc | Toshiaki Sakaida, Yoshihiko Yuzawa, Fumio Iriko | 1988-11-08 |
| 4555250 | Grinding sheet and process for preparing same | Shin'ichi Horie, Yutaka Matsuzaki | 1985-11-26 |