Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5041173 | Lapping tools | Toshio Shikata, Takanobu Nishimura, Masaharu Kinoshita, Norio Masuda | 1991-08-20 |
| 4867803 | Lapping tools and method of manufacturing the same | Toshio Shikata, Takanobu Nishimura, Masaharu Kinoshita, Norio Masuda | 1989-09-19 |