Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6715966 | Rotary cutting tool having corrugated cutting edge portion whose pitch and/or depth are/is increased with increase in diameter of body of the cutting tool | Kiyoshi Tsuzuki, Naomi Tatebe | 2004-04-06 |