Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7283322 | Device to prevent cartridge incorrect insertion, a cartridge auto-changer, and a cartridge automatic control device with an auto-changer | — | 2007-10-16 |
| 7252903 | Battery pack | Katsuhiko Kawabata, Atsushi Watanabe, Masatsugu Naka | 2007-08-07 |