Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7584431 | Communication system and terminal units connected thereto | Hiroi Kazushige, Nobukazu Kondo, Tsutomu Hara, Kazuchika Ogiwara, Masaya Umemura +1 more | 2009-09-01 |
| 6850267 | Video telephone system and terminal device therefor | Kazushige Hiroi, Nobukazu Kondo, Kazuchika Ogiwara, Takeo Tomokane | 2005-02-01 |
| 5933478 | Data transfer system and handheld terminal device used therefor | Tomochika Ozaki, Yoshihiko Kunimori, Kouichi Hibi, Michihiro Mese, Hiroshi Shimizu +2 more | 1999-08-03 |
| 5740369 | Information delivery system and portable information terminal | Hiroshi Shimizu, Wataru Kitayama, Hidefumi Goto, Tadashi Kuwabara, Tomohiro Esaki +1 more | 1998-04-14 |