Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5987330 | Cordless telephone set | Katsuhiko Otsuji, Hiroyuki Ishida, Hideo Hikiuma, Kunihiro Takahashi, Yuzo Ishida +1 more | 1999-11-16 |
| 5915227 | Cordless telephone | Hideo Hikuma, Kunihiro Takahashi, Katsuhiko Otsuji, Hiroyuki Ishida, Yuzo Ishida | 1999-06-22 |
| 5794152 | Cordless telephone | Hideo Hikuma, Kunihiro Takahashi, Katsuhiko Otsuji, Hiroyuki Ishida, Yuzo Ishida | 1998-08-11 |
| 5574727 | Cordless telephone system and communication method thereof | — | 1996-11-12 |
| 5434905 | Digital cordless telephone set operated under burst synchronization | Kazuo Maeda, Jun Yang, Kiyoshi Tanaka | 1995-07-18 |