Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7505146 | Method and device for detecting direction of member having outer periphery formed in vertically asymmetrical shape | Hiroyuki Oya, Ryoji Usui, Hajime Tanabe, Mitsuyasu Fukusawa, Osamu Watanabe | 2009-03-17 |