Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693944 | Surface-coated wear-resistant member of cermet and process for producing same | Akio Nishiyama | 1987-09-15 |
| 4539251 | Surface coated Sialon-base ceramic materials for tools | Teruyoshi Tanase | 1985-09-03 |