Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5625885 | Mobile communication system having pagers for providing two-way data communication between a base station and mobile stations | Isao Nakazawa | 1997-04-29 |
| 5606390 | Visual-line detecting device and optical apparatus having the same | Takashi Arai, Kitahiro Kaneda, Tatsuya Yamazaki | 1997-02-25 |