Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7117016 | Adaptive antenna base station apparatus | Takaaki Kisigami, Yasuaki Yuda, Masayuki Hoshino | 2006-10-03 |
| 7088956 | Path search circuit, radio receiver and radio transmitter, utilizing a directional beam | Takaaki Kishigami, Yasuaki Yuda, Keiji Takakusaki, Shoji Miyamoto | 2006-08-08 |
| 7031719 | Method of calculating exciting coefficients for circular array antenna and radio unit utilizing the same | Kentaro Miyano, Takaaki Kishigami, Makoto Hasegawa | 2006-04-18 |
| 6922450 | Direction of arrival estimator and direction of arrival estimation method | Yasuaki Yuda, Youichi Nakagawa, Masahiro Mimura | 2005-07-26 |
| 6897807 | Radio-wave arrival-direction estimating apparatus and directional variable transceiver | Takaaki Kishigami, Yasuaki Yuda, Masayuki Hoshino | 2005-05-24 |
| 6836245 | Radio-wave arrival-direction estimating apparatus and directional variable transceiver | Takaaki Kishigami, Yasuaki Yuda, Masayuki Hoshino | 2004-12-28 |
| 6781543 | Adaptive array antenna system and mobile telecommunications system using the same | Youichi Nakagawa, Makoto Hasegawa | 2004-08-24 |
| 6671469 | Supervisory apparatus for transmission lines | Satoshi Kumano, Noboru Terai, Katsuhiro Oki, Takatsugu Kurokawa | 2003-12-30 |
| 6642888 | Radio-wave arrival-direction estimating apparatus and directional variable transceiver | Takaaki Kishigami, Yasuaki Yuda, Masayuki Hoshino | 2003-11-04 |
| 6531991 | Dielectric resonator antenna for a mobile communication | Naoki Adachi, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa +2 more | 2003-03-11 |
| 6529745 | Radio wave arrival direction estimating antenna apparatus | Youichi Nakagawa, Takaaki Kishigami, Makoto Hasegawa, Hiroyuki Tsuji | 2003-03-04 |
| 6502132 | Network monitoring system, monitoring device, and monitored device | Satoshi Kumano | 2002-12-31 |
| 6407718 | Dielectric resonator antenna for a mobile communication | Naoki Adachi, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa +2 more | 2002-06-18 |
| 6351238 | Direction of arrival estimation apparatus and variable directional signal receiving and transmitting apparatus using the same | Takaaki Kishigami, Makoto Hasegawa | 2002-02-26 |
| 6349218 | Adaptive array antenna system and mobile telecommunications system using the same | Youichi Nakagawa, Makoto Hasegawa | 2002-02-19 |
| 6333713 | Direction estimating apparatus, directivity controlling antenna apparatus, and direction estimating method | Youichi Nakagawa, Masahiro Mimura, Takaaki Kishigami, Makoto Hasegawa | 2001-12-25 |
| 6198450 | Dielectric resonator antenna for a mobile communication | Naoki Adachi, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa +2 more | 2001-03-06 |
| 6188913 | Directivity control antenna apparatus for shaping the radiation pattern of antenna of base station in mobile communication system in accordance with estimated directions or positions of mobile stations with which communication is in progress | Makoto Hasegawa, Akihiko Matsuoka, Naoki Adachi | 2001-02-13 |