Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7559987 | Grouting material | Takahiro Sato, Tomohiro KANAZAWA, Ken Uoya, Akira Takami, Shin Tada | 2009-07-14 |
| 5294209 | Tool attaching device | Hirokazu Naka | 1994-03-15 |
| 5241792 | Method and apparatus for surface finishing | Hirokazu Naka | 1993-09-07 |
| 5056964 | Machining apparatus | Hirokazu Naka | 1991-10-15 |