Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5515349 | Track seek method and device for use with an optical information recording and reproducing apparatus | Koichi Yamazaki, Kazuo Noda | 1996-05-07 |
| 5363207 | Adaptor device for a facsimile | Toshio Osawa, Takayuki Kojima, Shinichi Machida | 1994-11-08 |
| 5270526 | Card type recording medium and method of preventing a false use thereof | — | 1993-12-14 |
| 5231276 | System for preventing a false use of a card type recording medium and a method thereof | — | 1993-07-27 |
| 4990790 | Method for discriminating authenticity of a bill using polarization and an apparatus therefor | — | 1991-02-05 |