Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701580 | Information providing systems and portable electronic devices | Takashi Orimoto | 1997-12-23 |
| 5640680 | Radio communication apparatus, radio communication system, and method of expanding terminal for use in radio communication system | Shinjiro Ishida, Hironobu Hoashi | 1997-06-17 |