Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4719188 | Alumina-base abrasion resistant material | Keiichiro Koba, Akira Matsumoto, Tomomi Miyamoto | 1988-01-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4719188 | Alumina-base abrasion resistant material | Keiichiro Koba, Akira Matsumoto, Tomomi Miyamoto | 1988-01-12 |