Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5595613 | Steel for gear, gear superior in strength of tooth surface and method for producing same | Atsumi Hatano, Sadayuki Nakamura, Makoto Yoshida, Takashi Matsumoto | 1997-01-21 |