Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6718226 | Method of providing data for numerical control machining unit | Hiroshi Arai, Junichi Hirai, Osamu Chiba | 2004-04-06 |
| 6675061 | Numerically controlled curved surface machining unit | Junichi Hirai, Hiroshi Arai, Tamotsu Harihara, Osamu Chiba, Masaaki Takahashi | 2004-01-06 |