Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922099 | Electric field device | Senichi Masuda | 1990-05-01 |
| 4672503 | Electric field forming apparatus | Senichi Masuda, Hisaharu Shiromizu, Naotoshi Morita | 1987-06-09 |
| 4668452 | Process for producing silicon carbide heating elements | Masakazu Watanabe, Akiyasu Okuno, Shunkichi Nozaki, Yasushi Matsuo | 1987-05-26 |
| 4666679 | Ceramic ozonizer | Senichi Masuda, Hisaharu Shiromizu | 1987-05-19 |
| 4652318 | Method of making an electric field device | Senichi Masuda | 1987-03-24 |
| 4636218 | Artificial articulation | Shigeo Niwa | 1987-01-13 |
| 4375517 | Sintered cubic boron nitride and process for producing the same | Masakazu Watanabe, Akiyasu Okuno, Yasushi Matsuo | 1983-03-01 |
| 4304576 | Silicon nitride ceramic tools and a process for their production | Yoshinori Hattori, Masayuki Akatsuka, Yasushi Matsuo | 1981-12-08 |