Issued Patents All Time
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 (All Time): #3,724,894 of 4,157,543Top 90%
1
Patents All Time