Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853284 | Mechanical part | Takashi Ishii, Hisao Yabe | 1989-08-01 |
| 4849292 | Method for directly bonding ceramic and metal members and laminated body of the same | Nobuyuki Mizunoya, Yasuyuki Sugiura | 1989-07-18 |
| 4822662 | Machine parts with wear-resistant surface brought into contact with elongated fibrous member | Takashi Ishii, Hisao Yabe, Akira Yano, Shinsuke Noto | 1989-04-18 |