Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8810475 | Antenna device | Masataka Ito, Dongdong Wang, Yoshitsugu Wakazono, Yasuhiko Mano | 2014-08-19 |
| 7590400 | Radio apparatus | Shoji Otaka, Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano | 2009-09-15 |
| 7480272 | Soft handoff in IP-based CDMA networks by IP encapsulation | Shinichi Baba, Tao Zhang, Prathima Agrawal | 2009-01-20 |
| 7184738 | Radio apparatus | Shoji Otaka, Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano | 2007-02-27 |
| 7162247 | Autonomous base station set up and soft handoff | Shinichi Baba | 2007-01-09 |
| 7072317 | Method and apparatus for providing soft hand-off in IP-centric wireless CDMA networks | Faramak Vakil, David Famolari, Shinichi Baba | 2006-07-04 |
| 6999434 | Method, system and circuitry for soft handoff in internet protocol-based code division multiple access networks | Prathima Agrawal, Shinichi Baba, Tao Zhang | 2006-02-14 |
| 6816712 | Radio apparatus | Shoji Otaka, Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano | 2004-11-09 |
| 6339711 | Radio apparatus | Shoji Otaka, Hiroshi Tsurumi, Hiroshi Yoshida, Syuichi Sekine, Hiroyuki Kayano | 2002-01-15 |
| 5988088 | Underwater sightseeing craft | Masanori Ishida | 1999-11-23 |
| 5965494 | Tunable resonance device controlled by separate permittivity adjusting electrodes | Yoshiaki Terashima, Hisashi Yoshino, Hiroyuki Kayano | 1999-10-12 |
| 5936583 | Portable radio communication device with wide bandwidth and improved antenna radiation efficiency | Syuichi Sekine, Minoru Sakurai, Yasuo Suzuki, Syuichi Obayashi | 1999-08-10 |
| 5903822 | Portable radio and telephones having notches therein | Syuichi Sekine | 1999-05-11 |
| 5517676 | Portable radio and telephones having notches therein | Syuichi Sekine | 1996-05-14 |
| 5422598 | High-frequency power amplifier device with drain-control linearizer circuitry | Koji Iino, Shuichi Obayashi, Syuuichi Sekine | 1995-06-06 |
| 5300939 | Method and apparatus for measuring antenna radiation efficiency | Yoshiaki Tsukumo, Satoshi Yasuda, Syuuichi Sekine, Shuichi Obayashi | 1994-04-05 |
| 4968983 | Radiation field characteristic measuring apparatus | — | 1990-11-06 |
| 4431738 | Method of plant tissue and cell culture | Kuniaki Tanaka | 1984-02-14 |