Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677929 | Automobile on-board and/or portable telephone system | Osamu Kato | 1997-10-14 |
| 5646937 | Code division multiple access communication system | Takayuki Nakano, Osamu Kato | 1997-07-08 |
| 5627845 | Variable rate communication method and a variable rate communication system | Osamu Kato | 1997-05-06 |