Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729542 | Method and apparatus for recording digital information in two-dimensional pattern, carrier of digital information recorded thereby, and a method and apparatus for decoding such digital information | Toshiyuki Iwai, Atsushi Aoki, Masahiro Esashi, Hiroaki Niwamoto, Tsukasa Kaminokado | 2004-05-04 |
| 6302329 | Method and apparatus for recording digital information in two-dimensional pattern, carrier of digital information recorded thereby, and a method and apparatus for decoding such digital information | Toshiyuki Iwai, Atsushi Aoki, Masahiro Esashi, Hiroaki Niwamoto, Tsukasa Kaminokado | 2001-10-16 |