Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494973 | Scanner | — | 2004-08-24 |
| D494974 | Scanner | — | 2004-08-24 |
| 6535164 | Each area automatic selection receiver for emergency radio signal | Masaki Hiratsuka, Nobuaki Yokoyama | 2003-03-18 |
| D383133 | Programmable scanner | — | 1997-09-02 |
| 5661392 | Device for causing electronic apparatus to use a selectively mounted non-rechargeable battery pack or rechargeable battery pack | — | 1997-08-26 |
| 5396544 | Telephone answering system | Wayne Gilbert, Nobuaki Yokoyama | 1995-03-07 |
| D348664 | Radio scanner | — | 1994-07-12 |
| D330554 | Radio scanner | — | 1992-10-27 |
| 4891633 | Digital image exchange system | Yasuo Nagazumi | 1990-01-02 |
| D301841 | Depth finder | — | 1989-06-27 |
| 4797636 | Radio receiver | Nobuaki Yokoyama | 1989-01-10 |
| 4760401 | Removable rod antenna | — | 1988-07-26 |
| D292704 | Marine transceiver | — | 1987-11-10 |
| D292211 | Portable radio transceiver | — | 1987-10-06 |
| D292210 | Marine transceiver | — | 1987-10-06 |
| D290957 | Hand-held scanning receiver | — | 1987-07-21 |
| 4679245 | Radio receiver | Nobuaki Yokoyama | 1987-07-07 |
| 4668952 | Radar detector | Seizi Koyama | 1987-05-26 |
| D289616 | Direction finding radio receiver | — | 1987-05-05 |
| D288927 | Antenna | — | 1987-03-24 |
| 4636796 | Radio direction finding system | — | 1987-01-13 |
| 4633264 | Horn antenna | Seiji Kayama | 1986-12-30 |
| 4631377 | Slide switch with indicator light | Nobuaki Yokoyama | 1986-12-23 |
| 4626857 | Dual frequency band radar detector | — | 1986-12-02 |
| 4618997 | Portable transceiver | Toshiyuki Tanaka, Hiromichi Miyakoshi | 1986-10-21 |