Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7213591 | Groove cutting tool | Shin Oshima, Naohisa Takahashi | 2007-05-08 |
| 7134949 | Constant angular grinding tool | Shin Oshima, Naohisa Takahashi | 2006-11-14 |
| 7094136 | Grinding tool for edge circular processing | Shin Oshima, Naohisa Takahashi, Gene Presman | 2006-08-22 |