Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7756638 | Mobile terminal device and program | — | 2010-07-13 |
| 5991624 | Method and apparatus for expanding a radio communication system and enabling communication between terminals | Shinjiro Ishida, Kazuyasu Yamane | 1999-11-23 |
| 5640680 | Radio communication apparatus, radio communication system, and method of expanding terminal for use in radio communication system | Shinjiro Ishida, Kazuyasu Yamane | 1997-06-17 |