Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7549208 | Method of mounting electronic circuit chip | Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu +2 more | 2009-06-23 |
| 7309019 | Method of checking authenticity of sheet with built-in electronic circuit chip | Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu +2 more | 2007-12-18 |
| 7007854 | Method of checking authenticity of sheet with built-in electronic circuit chip | Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu +2 more | 2006-03-07 |
| 6731509 | Method for mounting electronic circuit chip | Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu +2 more | 2004-05-04 |
| 6659353 | Method of checking authenticity of sheet with built-in electronic circuit chip | Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu +2 more | 2003-12-09 |