Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886556 | Method for production of sliding member | Kazuyuki Yasuda | 1989-12-12 |
| 4857411 | Composite body and method of manufacturing the same | Morie Yamaguchi, Chiezo Horita, Yasuo Sakata | 1989-08-15 |
| 4806040 | Ceramic ball and socket joint | Daniel E. Gill, Yasuo Sakata | 1989-02-21 |