Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7094979 | Switching device and portable terminal device | Hiroyuki Hosogane | 2006-08-22 |
| 6546231 | Communication terminal device and rotary operation key | Takahisa Someya | 2003-04-08 |