Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6952581 | Location registration control method, mobile communication network, and communication terminal | Koji Sasada | 2005-10-04 |
| 6915136 | Mobile communication method and mobile communication system | Yoko Kikuta | 2005-07-05 |
| 6834102 | System and method for controlling transfer | Masahiro Sawada | 2004-12-21 |
| 6512924 | Mobile communications system | Masahiro Sawada, Yasuo Maruyama | 2003-01-28 |
| 5995837 | Mobile communication system | Yukichi Saito, Yasuo Maruyama | 1999-11-30 |
| 5940385 | Multicellular transmission method and apparatus | Yasuhiro Mita, Narumi Umeda | 1999-08-17 |
| 5703941 | Connection control method for personal communications | Akihisa Nakajima, Shoichi Hirata, Kenichi Yamaguchi, Shiokazu Fujiwara, Yasuo Maruyama +2 more | 1997-12-30 |
| 5677954 | Cryptical control method for personal communication | Shoichi Hirata, Yasuyuki Uchiyama, Hiroshi Tsukahara | 1997-10-14 |
| 5649301 | Mobile communication method for controlling origination or termination of a call in a desired network | Yasuo Maruyama, Shoichi Hirata, Hiroshi Nakamura, Yasuyuki Uchiyama, Hiroshi Tsukahara +1 more | 1997-07-15 |
| 5572584 | Connection control method for personal communications | Shoichi Hirata, Yasuyuki Uchiyama | 1996-11-05 |
| 5513211 | Radio communication system with controlled voice code switching | Kouji Yamamoto, Shinji Uebayashi | 1996-04-30 |