Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761853 | Free-cutting tool steel | Kiyohito Ishida, Katsunari Oikawa, Toshimitsu Fujii, Kozo Ozaki, Seiji Kurata +1 more | 2004-07-13 |
| 6024916 | Cast cold tool and method for producing the same | Tatsumi Urita, Kozo Ozaki | 2000-02-15 |
| 5306568 | High Young's modulus materials and surface-coated tool members using the same | Kozo Ozaki, Koichi Sudo | 1994-04-26 |