Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668069 | Cutting tool composed of silicon nitride | Masahiro Sato, Yukiyasu Aoyama, Nobuoki Takagi | 1997-09-16 |
SK
Shoji Kohsaka
Overall (1997): #78,513 of 185,788Top 45%
1
Patents 1997