Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7286814 | Location registration system, mobile terminal, control equipment, methods of location registration in the location registration system | Yugo Watanabe, Masumi Fujiwara, Masami Yabusaki | 2007-10-23 |
| 7222169 | Control method and system for information delivery through mobile communications network | Takashi Koshimizu | 2007-05-22 |
| 7058410 | Method for managing location information, related relay device and location information management device | Satoshi Hiyama | 2006-06-06 |
| 6978135 | Location register, location registration system, and location registration method | — | 2005-12-20 |
| 6952581 | Location registration control method, mobile communication network, and communication terminal | Masami Yabusaki | 2005-10-04 |
| 6157837 | Mobile communication system, network and mobile station | Yasuhiro Kato, Akihiro Maebara, Ichiro Okajima, Kazuo Sugiyama | 2000-12-05 |
| 6021516 | Communication system and transmission station | Ichiro Okajima, Akihiro Maebara, Katsumi Kobayashi, Hiroyuki Hattori | 2000-02-01 |
| 5974044 | System and method for controlling voice and data communications | Kimio Ikeda, Akitoshi Miyazaki, Kazuo Sugiyama, Akihiro Maebara, Ichiro Okajima +1 more | 1999-10-26 |
| 5884165 | Mobile communication systems sharing a control channel | Noriko Uchida, Akihiro Maebara, Katsumi Kobayashi, Koji Yamamoto, Syoichi Hirata +2 more | 1999-03-16 |