Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668069 | Cutting tool composed of silicon nitride | Masahiro Sato, Nobuoki Takagi, Shoji Kohsaka | 1997-09-16 |
YA
Yukiyasu Aoyama
Overall (1997): #54,758 of 185,788Top 30%
1
Patents 1997