Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8315596 | Transmission process restriction method, mobile communication system, and mobile station | Kazunori Obata, Kazuya Nomura, Mikio Iwamura, Yasuhiro Kato | 2012-11-20 |
| 8111664 | Communication path switching system and method | Masafumi Masuda, Masayuki Koshino, Yasuhiro Kato | 2012-02-07 |
| 7860505 | Mobile communication system, extension transmission/reception server, extension transmission/reception controller, base station, radio network controller, mobile station and communication method | Mayu Yamada, Masayuki Koshino, Masafumi Masuda, Seizo Onoe | 2010-12-28 |
| 7634293 | Mobile communication system, extension transmission/reception device, base station, radio network controller and mobile station | Masafumi Masuda, Masayuki Koshino, Mayu Yamada | 2009-12-15 |
| 7088960 | Wireless channel setting method for mobile communication system and mobile communication control apparatus | Yasuhiro Kato, Takehiro Nakamura, Seizo Onoe, Yutaka Ohto, Shinji Ueda | 2006-08-08 |
| 7039413 | Mobile station transfer control system, cell transfer control method, mobile station, cell transfer control method at mobile station, cell transfer control program, control apparatus, and allocating method of communication resources | Masafumi Masuda, Hidetoshi Yazaki, Hiromu Niiyama, Takashi Nagano | 2006-05-02 |
| 6983039 | Call admission control method and communication system to which method is applied | Yoshihiro Ishikawa, Seizo Onoe, Yoshitaka Hiramoto | 2006-01-03 |
| 6912394 | Radio line allocation judging method in mobile communication system and radio line | Kazunori Obata, Tooru Nakamura | 2005-06-28 |
| 6819661 | Method and apparatus of a mobile communication system which reduces power consumption by observing only the starting slot on a TDMA radio channel | Ichiro Okajima, Atsushi Murase, Katsumi Kobayashi, Tadao Takami | 2004-11-16 |
| 6157837 | Mobile communication system, network and mobile station | Yasuhiro Kato, Ichiro Okajima, Kazuo Sugiyama, Koji Sasada | 2000-12-05 |
| 6084966 | Communicating encrypted signals in which random bits and random bit position data are inserted | Katsumi Kobayashi, Ichiro Okajima, Noriko Uchida, Shinji Uebayashi | 2000-07-04 |
| 6021516 | Communication system and transmission station | Ichiro Okajima, Katsumi Kobayashi, Koji Sasada, Hiroyuki Hattori | 2000-02-01 |
| 5974044 | System and method for controlling voice and data communications | Kimio Ikeda, Koji Sasada, Akitoshi Miyazaki, Kazuo Sugiyama, Ichiro Okajima +1 more | 1999-10-26 |
| 5884165 | Mobile communication systems sharing a control channel | Noriko Uchida, Katsumi Kobayashi, Koji Yamamoto, Syoichi Hirata, Kazuo Sugiyama +2 more | 1999-03-16 |
| 5742909 | Transmission of data indicating dynamic transmission/reception periods | Noriko Uchida, Ichiro Okajima, Katsumi Kobayashi, Masumi Kitagawa | 1998-04-21 |
| 5721742 | Terminal, network, and communication system | Ichiro Okajima, Shoichi Hirata, Katsumi Kobayashi | 1998-02-24 |
| 5689503 | Random access system of a mobile communication system | Azusa WADA, Ichiro Okajima, Katsumi Kobayashi, Noriko Uchida, Shinji Uebayashi +1 more | 1997-11-18 |
| 5258980 | Radio channel switching control method | Seizo Onoe, Fumiyuki Adachi, Masaharu Hata, Toshinori Fujii | 1993-11-02 |