Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795016 | Jig for heat treatment of work | Masaaki Akiyama, Akira Ogishima, Koichi Sakamoto, Kazumi Matsumoto | 2004-09-21 |
| 6528931 | Electric light bulb with base held by positioning ring having elastic pieces and weld pieces | Masayuki Umehara, Hitoshi Kawasaki | 2003-03-04 |
| 5200678 | Motor driving control apparatus | Mutuo Tokashiki, Sumio Kobayashi, Hiroshi Sugai, Kazuyuki Nakagawa | 1993-04-06 |