Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10439788 | Wireless communication device | Toshihisa Nabetani, Tsuguhide Aoki, Takayuki Nishio, Koji Yamamoto | 2019-10-08 |
| 9942844 | Communication control method and communication device for enabling power saving | Koji Yamamoto, Takayuki Nishio, Tomoyuki Sugihara | 2018-04-10 |
| 9794893 | Wireless communication control device and wireless communication control method | Koji Yamamoto, Takayuki Nishio, Tomoyuki Sugihara | 2017-10-17 |
| 9048888 | Power line communication system | Daisuke Umehara, Yasuhiro Yabuuchi, Toshiya Hisada, Shinichi Ishiko, Satoshi Horihata +1 more | 2015-06-02 |
| 8718124 | Noise detection method, noise detection apparatus, simulation method, simulation apparatus, and communication system | Daisuke Umehara, Toshiya Hisada, Shinichi Ishiko, Satoshi Horihata | 2014-05-06 |
| 8548036 | Noise detection method, noise detection apparatus, simulation method, simulation apparatus, and communication system | Daisuke Umehara, Toshiya Hisada, Shinichi Ishiko, Satoshi Horihata | 2013-10-01 |
| 7058002 | OFDM packet communication receiver | Tomoaki Kumagai, Masato Mizoguchi | 2006-06-06 |
| 6658063 | OFDM packet communication receiver system | Masato Mizoguchi, Takeshi ONIZAWA, Tomoaki Kumagai | 2003-12-02 |
| 6608863 | Coherent detection system for multicarrier modulation | Takeshi ONIZAWA, Masato Mizoguchi, Tomoaki Kumagai, Tetsu Sakata | 2003-08-19 |
| 6307837 | Method and base station for packet transfer | Takeo Ichikawa, Hidetoshi Kayama, Hiroyuki Yamamoto, Hitoshi Takanashi | 2001-10-23 |
| 5280537 | Digital communication system using superposed transmission of high speed and low speed digital signals | Takatoshi Sugiyama, Shuji Kubota, Kiyoshi Enomoto, Shuzo Kato | 1994-01-18 |
| 4554672 | Phase and frequency variable oscillator | Tatsuro Masamura, Takayoshi Maki | 1985-11-19 |