Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6356754 | Voice recording method for mobile communication apparatus | Katsuyuki Onozawa, Hiroshi Fujita, Osamu Kawano | 2002-03-12 |
| 6181923 | Automatic frequency control circuit and method of automatic frequency control | Osamu Kawano | 2001-01-30 |
| 5058203 | Mobile telephone terminal having selectively used processor unit for low power consumption | — | 1991-10-15 |
| 4884294 | Portable cordless telephone set for outputting various discriminiation sounds with simple circuit construction | — | 1989-11-28 |