Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7603999 | Metal bonded drilling and boring tool | Sokichi Takemura, Akihiko Nakagawa | 2009-10-20 |
| 6851418 | Metal bonded drilling and boring tool | Sokichi Takemura, Akihiko Nakagawa | 2005-02-08 |
| 6620522 | Metal bonded drilling and/or chamfering tool | Akihiko Nakagawa | 2003-09-16 |