Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8774732 | Wireless device, wireless communication system, and wireless communication method | — | 2014-07-08 |
| 8155668 | Radio communication apparatus, position measurement method for radio communication apparatus, and radio communication system | — | 2012-04-10 |
| 7409227 | Radio apparatus | — | 2008-08-05 |
| 6947718 | Deviation compensation apparatus | — | 2005-09-20 |
| 6904076 | Interference canceller device and radio communication device | Masafumi Tsutsui, Yoshinori Tanaka | 2005-06-07 |
| 6654618 | Variation compensating unit | — | 2003-11-25 |
| 6614766 | Interference canceller | Hiroyuki Seki, Yoshinori Tanaka, Takeshi Toda | 2003-09-02 |
| 6549527 | Radio receiver and despreader | Masafumi Tsutsui, Yoshinori Tanaka | 2003-04-15 |
| 6493379 | Arrival direction estimation method using an array antenna and DS-CDMA receiver unit using the method | Yoshinori Tanaka, Masafumi Tsutsui | 2002-12-10 |
| 6473451 | Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system | Hiroyuki Seki, Yoshinori Tanaka, Takeshi Toda, Masafumi Tsutsui | 2002-10-29 |
| 6385181 | Array antenna system of wireless base station | Masafumi Tsutsui, Yoshinori Tanaka | 2002-05-07 |
| 6347220 | Multiple-beam antenna system of wireless base station | Yoshinori Tanaka, Masafumi Tsutsui | 2002-02-12 |
| 6317611 | Communication device with adaptive antenna | — | 2001-11-13 |
| 6304624 | Coherent detecting method using a pilot symbol and a tentatively determined data symbol, a mobile communication receiver and an interference removing apparatus using the coherent detecting method | Hiroyuki Seki, Yoshinori Tanaka, Takeshi Toda | 2001-10-16 |
| 6208294 | Array antenna receiving device | Yoshinori Tanaka, Masafumi Tsutsui | 2001-03-27 |
| 6192067 | Multistage interference canceller | Takeshi Toda, Yoshinori Tanaka, Hiroyuki Seki, Masafumi Tsutsui | 2001-02-20 |
| 6157685 | Interference canceller equipment and interference cancelling method for use in a multibeam-antenna communication system | Yoshinori Tanaka, Hiroyuki Seki, Takeshi Toda, Masafumi Tsutsui | 2000-12-05 |
| 6064338 | Array antenna system of wireless base station | Yoshinori Tanaka, Masafumi Tsutsui, Hiroyuki Seki | 2000-05-16 |
| 6058318 | Radio base station in cellular mobile communication system | Yoshinori Tanaka, Hiroyuki Seki, Takeshi Toda, Masafumi Tsutsui | 2000-05-02 |
| 6032026 | Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system | Hiroyuki Seki, Yoshinori Tanaka, Takeshi Toda, Masafumi Tsutsui | 2000-02-29 |
| 5287069 | Constant-amplitude wave combination type amplifier | Naofumi Okubo, Yoshihiko Asano, Hiroshi Kurihara, Yoshimasa Daido, Kazuhiko Kobayashi +1 more | 1994-02-15 |
| 5264807 | High frequency power amplifier with high efficiency and low distortion | Naofumi Okubo, Yoshihiko Asano, Hiroshi Kurihara, Yoshimasa Daido, Kazuhiko Kobayashi +1 more | 1993-11-23 |
| 5095283 | Amplifier circuit having feedback circuit | Kazuhiko Kobayashi, Hiroshi Kurihara, Naofumi Okubo, Yoshihiko Asano, Yoshimasa Daido +1 more | 1992-03-10 |