Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11088789 | Signal quality monitoring apparatus and method | Kenichi Matsushita, Mikihiko Iwaida, Hideki Ono | 2021-08-10 |
| 10587448 | Transmission device, reception device, and transmission method | Itsuhei Shimizu, Makoto Tanahashi, Hideki Oono, Kenichi Matsushita | 2020-03-10 |
| 10270636 | Wireless communication apparatus, integrated circuit, transmission method, reception method, and communication method | Makoto Tanahashi, Toshiyuki Nakanishi, Yoshimasa Egashira | 2019-04-23 |
| 10091041 | Wireless communication apparatus, integrated circuit, transmission method, reception method, and communication method | Makoto Tanahashi, Toshiyuki Nakanishi | 2018-10-02 |
| 8948333 | Clock frequency error detecting device | Tatsuhisa Furukawa | 2015-02-03 |
| 8284850 | OFDM reception apparatus | Takashi Seki | 2012-10-09 |
| 7206279 | OFDM receiving apparatus and method of demodulation in OFDM receiving apparatus | Takashi Seki | 2007-04-17 |
| 6771719 | Automatic gain control method and its system | Takeshi Koyama, Takashi Seki | 2004-08-03 |
| 6081563 | AFC circuit of digital demodulation device | Takashi Seki | 2000-06-27 |
| 5771224 | Orthogonal frequency division multiplexing transmission system and transmitter and receiver therefor | Takashi Seki, Shigeru Okita, Tatsuya Ishikawa | 1998-06-23 |
| 5694389 | OFDM transmission/reception system and transmitting/receiving apparatus | Takashi Seki, Shigeru Okita | 1997-12-02 |
| 5440268 | AFC circuit for QPSK demodulator | Tatsuya Ishikawa, Susumu Komatsu | 1995-08-08 |
| 5440587 | Demodulator for digitally modulated wave | Tatsuya Ishikawa | 1995-08-08 |
| 5418815 | Receiver adaptively operable for multiple signal transmission systems | Tatsuya Ishikawa | 1995-05-23 |
| 5410573 | Digital phase-locked loop circuit | Tatsuya Ishikawa, Susumu Komatsu | 1995-04-25 |
| 5161003 | Compatible television system with companding auxiliary signal | Seijiro Yasuki, Kiyoyuki Kawai | 1992-11-03 |