Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8483607 | Wireless communication method and relay apparatus | — | 2013-07-09 |
| 8427231 | Amplifying device and amplifying method | — | 2013-04-23 |
| 8355668 | Relay station, relay method, receiving station and receiving method | — | 2013-01-15 |
| 8331474 | Wireless communication system, wireless communication method, transmission apparatus, and reception apparatus | — | 2012-12-11 |
| 8121179 | Wireless relay device and wireless relay method | — | 2012-02-21 |
| 7873096 | Frequency-division multiplexing transceiver apparatus, wave-number-division multiplexing transceiver apparatus and method thereof | — | 2011-01-18 |
| 7852956 | Communications system, transmitter, receiver, and communications method thereof | — | 2010-12-14 |
| 7684463 | Frequency-division multiplexing transceiver apparatus, wave-number-division multiplexing transceiver apparatus and method | — | 2010-03-23 |
| 7630454 | Frequency-division multiplexing transceiver apparatus and method | — | 2009-12-08 |
| 7599428 | Frequency-division multiplexing transceiver apparatus and method | — | 2009-10-06 |
| 7545321 | Array antenna calibration apparatus and method | — | 2009-06-09 |
| 7474609 | Frequency-division multiplexing transceive apparatus and method | — | 2009-01-06 |
| 7340248 | Calibration apparatus | Chiyoshi Akiyama, Tomonori Sato | 2008-03-04 |
| 7248216 | Calibration apparatus and method for array antenna | Chiyoshi Akiyama, Tomonori Sato | 2007-07-24 |
| 7145508 | Radio frequency signal receiving apparatus, a radio frequency signal transmitting apparatus, and a calibration method | — | 2006-12-05 |
| 6985106 | Array antenna radio communication apparatus | — | 2006-01-10 |
| 6255858 | Phase-frequency detector and phase-locked loop circuit incorporating the same | Chiyoshi Akiyama | 2001-07-03 |
| 6057715 | Clock signal generating circuit for generating a clock signal having an arbitrary frequency | — | 2000-05-02 |
| 5978415 | Automatic amplitude equalizer | Kenzo Kobayashi, Toshio Tamura, Hiroyuki Kiyanagi, Takanori Iwamatsu | 1999-11-02 |
| 5922380 | Tea manufacturing process | Takanobu Takihara, Hitoshi Kinugasa, Hitoshi Niino, Yuko Sagesaka, Nobuo Matsumoto +3 more | 1999-07-13 |
| 5844950 | Cross polarization interference canceler and cross polarization interference eliminating apparatus using the same | Yoshihito Aono, Takanori Iwamatsu | 1998-12-01 |
| 5838956 | Clock generating circuit | Shigemi Aizawa | 1998-11-17 |
| 5803993 | Outer ring for high strength constant velocity joint and production process for same | Kazuhiko Yoshida, Tatsuhiro Goto, Akira Wakita, Toyofumi Hasegawa, Hideo Takeshita +1 more | 1998-09-08 |
| 5625647 | Transmitter having automatic level control function | — | 1997-04-29 |
| 5526343 | Auxiliary service channel signal transmission system | Shigemi Aizawa | 1996-06-11 |