Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7990253 | Vehicular theft preventing device | Takao Fujiwara, Hideteru Umahashi, Takeshi Konno, Masayuki Mitsuyoshi, Satoru Futami | 2011-08-02 |
| 5702540 | Vacuum carburizing method and device, and carburized products | — | 1997-12-30 |
| 5647143 | Vacuum-degreasing cleaning method | Kunihiko Ishikawa, Noboru Hiramoto | 1997-07-15 |