Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677681 | Code transmission system and portable pager in radio paging system | Kenya Tanaka | 1997-10-14 |
| 5671366 | Operating system optimization to permit use of a first unit with a second unit to extend the functionality of the first | Nobuyuki Niwa, Shinji Shiraga, Tomoaki Kikuchi, Hiroya Miura, Kenji Morita | 1997-09-23 |