Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7980794 | Ring with cutting edge (ring-shaped chamfer tool) | — | 2011-07-19 |
| 7182556 | Drill and throwaway insert | Syoji Takiguchi | 2007-02-27 |
| 6874979 | Throw-away tip for use in drilling work and throw-away drilling tool | Syoji Takiguchi | 2005-04-05 |
| 4859123 | Insert boring tool | Yuzo Koesashi, Yoshikazu Iwata | 1989-08-22 |