Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5431561 | Method and apparatus for heat treating | Kikuo Yamabe, Keitaro Imai, Katsuya Okumura, Ken Nakao | 1995-07-11 |
| 5297956 | Method and apparatus for heat treating | Kikuo Yamabe, Keitaro Imai, Katsuya Okumura, Ken Nakao | 1994-03-29 |