Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659353 | Method of checking authenticity of sheet with built-in electronic circuit chip | Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu, Asahiko Isobe +2 more | 2003-12-09 |
| 6592032 | Control system and method of controlling information written into storage media | Kazuo Takaragi | 2003-07-15 |