Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5841853 | Telephone apparatus with interrupt call processing capability | Koji Yamanishi, Takako Ito | 1998-11-24 |
| 5375163 | Multi-channel cordless telephone system for maintaining master-slave communication | Katsuyuki Kajiwara | 1994-12-20 |