Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4239536 | Surface-coated sintered hard body | Takaharu Yamamoto, Tsuyoshi Asai, Naoji Fujimori | 1980-12-16 |
MT
Masa-aki Tobioka
Overall (All Time): #4,125,833 of 4,157,543Top 100%
1
Patents All Time