Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7338222 | Aperture apparatus | Phichet Numnual, Seiichi Oishi, Osamu Takano | 2008-03-04 |
| 7338221 | Sector drive mechanism | Seiichi Oishi, Hiroyuki Mizukami, Takashi Nakano | 2008-03-04 |
| 7211910 | Step motor | Seiichi Oishi | 2007-05-01 |