Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334453 | Diamond-coated bodies and process for preparation thereof | Masakazu Watanabe, Toshimichi Ito, Masaya Tsubokawa | 1994-08-02 |
| 5318836 | Diamond-coated body | Toshimichi Ito, Masaya Tsubokawa, Masakazu Watanabe | 1994-06-07 |
| 5286684 | Aluminum oxide-based sintered object and process for producing the same | Jun Otsuka, Yo Tajima | 1994-02-15 |
| 5128285 | Silicon oxynitride sintered body | Hitoshi Yokoi, Masakazu Watanabe | 1992-07-07 |
| 5028451 | Method of producing sintered hard metal with diamond film | Toshimichi Ito, Satoshi KATSUMATA, Masakazu Watanabe | 1991-07-02 |
| 5026601 | Zirconia-base sintered bodies having coating films | Masakazu Watanabe, Toru Imura, Kotaro Kuroda, Hiroyasu Saka | 1991-06-25 |
| 4956317 | Whisker-reinforced ceramics | Hitoshi Yokoi, Masakazu Watanabe, Akiyasu Okuno | 1990-09-11 |
| 4892703 | Surface structure of A1N substrate and a process for producing the same | Akiyasu Okuno | 1990-01-09 |
| 4840853 | Surface structure of AlN substrate and a process for producing the same | Akiyasu Okuno | 1989-06-20 |
| 4748138 | Highly toughened, sintered mass of zirconia | Masakazu Watanabe, Yasushi Matsuo | 1988-05-31 |
| 4626392 | Process for producing ceramic body for surgical implantation | Kazuo Kondo, Masahiko Okuyama, Masakazu Watanabe | 1986-12-02 |
| 4626517 | High toughness sintered bodies | Masakazu Watanabe, Yasushi Matsuo | 1986-12-02 |
| 4626518 | Method for manufacturing high toughness sintered bodies | Masakazu Watanabe, Yasushi Matsuo | 1986-12-02 |