Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728765 | Information device, information device system control method, and information device system | Tsukasa Hasegawa, Chiyo Akamatsu, Shinichiro Fukushima, Hidefumi Goto | 2004-04-27 |
| 6691150 | Information device, information device system control method, and information device system | Tsukasa Hasegawa, Chiyo Akamatsu, Shinichiro Fukushima, Hidefumi Goto | 2004-02-10 |