Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894817 | Method of writing data on optical card by projecting thereon intensity modulated light beam | Hisakatsu Tanaka, Nagahiro Gocho | 1990-01-16 |
| 4802018 | Electronic marking apparatus for identifying a selected image from a plurality of electronically stored images | Kowji Tanikawa, Tadashi Kato, Masahide Kanno, Hiroyuki Yashima, Akira Matsueda +3 more | 1989-01-31 |
| 4797872 | Method for reproducing data recorded on optical card | — | 1989-01-10 |
| 4612508 | Modified Miller data demodulator | — | 1986-09-16 |