Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10158402 | Wireless signal transmitting method and wireless apparatus | Tomoki Murakami, Yusuke Asai, Koichi Ishihara, Masato Mizoguchi, Takeo Ichikawa | 2018-12-18 |
| 9882614 | Wireless signal transmitting method and wireless apparatus | Tomoki Murakami, Yusuke Asai, Koichi Ishihara, Masato Mizoguchi, Takeo Ichikawa | 2018-01-30 |
| 9872295 | Wireless communication apparatus and wireless communication method | Hayato FUKUZONO, Tomoki Murakami, Shoko SHINOHARA, Yasushi Takatori, Masato Mizoguchi | 2018-01-16 |
| 9621299 | Coherent communication system, communication method, and transmission method | Koichi Ishihara, Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka +5 more | 2017-04-11 |
| 9614621 | Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system | Koichi Ishihara, Takayuki Kobayashi, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more | 2017-04-04 |
| 9520947 | Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system | Koichi Ishihara, Takayuki Kobayashi, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more | 2016-12-13 |
| 9370013 | Wireless communication method, base station, wireless communication system, and communication apparatus | Tomoki Murakami, Takeo Ichikawa, Yasushi Takatori, Munehiro Matsui, Yusuke Asai +1 more | 2016-06-14 |
| 9313007 | Wireless apparatus and training signal transmission method | Yusuke Asai, Tomoki Murakami, Koichi Ishihara, Masato Mizoguchi | 2016-04-12 |
| 9276652 | Wireless communication system and wireless communication method | Munehiro Matsui, Tomoki Murakami, Takeo Ichikawa, Yusuke Asai, Koichi Ishihara +2 more | 2016-03-01 |
| 9253762 | Wireless communication system and access point apparatus | Yusuke Asai, Takeo Ichikawa, Yasuhiko Inoue, Hirantha Abeysekera, Masato Mizoguchi | 2016-02-02 |
| 9184809 | Wireless communication method and access point apparatus | Tomoki Murakami, Koichi Ishihara, Takeo Ichikawa, Yusuke Asai, Tomoaki Kumagai +1 more | 2015-11-10 |
| 9178614 | Method for estimating amount of wavelength dispersion, wavelength dispersion compensation circuit, and receiving device | Etsushi Yamazaki, Takayuki Kobayashi, Masahito Tomizawa, Koichi Ishihara, Tadao Nakagawa +1 more | 2015-11-03 |
| 9160600 | Method for receiving frequency domain multiplexed signal and device for receiving frequency domain multiplexed signal | Takayuki Kobayashi, Koichi Ishihara, Yasushi Takatori, Hideyuki Nosaka, Munehiro Matsui +6 more | 2015-10-13 |
| 9094973 | Radio communication method, radio communication system, radio base station, and radio terminal station | Tomoki Murakami, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi, Takefumi Hiraguri +1 more | 2015-07-28 |
| 8971703 | Wavelength dispersion amount estimation method, wavelength dispersion compensation circuit, and reception device | Etsushi Yamazaki, Takayuki Kobayashi, Masahito Tomizawa, Koichi Ishihara, Tadao Nakagawa +1 more | 2015-03-03 |
| 8934782 | Transmission method, reception method, transmitter apparatus, and receiver device | Tadao Nakagawa, Etsushi Yamazaki, Koichi Ishihara, Takayuki Kobayashi, Yasushi Takatori +5 more | 2015-01-13 |
| 8929750 | Signal generating circuit, optical signal transmitting apparatus, signal receiving circuit, method for establishing optical signal synchronization, and optical signal synchronization system | Koichi Ishihara, Takayuki Kobayashi, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more | 2015-01-06 |
| 8897163 | Wireless communication method, base station, wireless communication system, and communication apparatus | Tomoki Murakami, Takeo Ichikawa, Yasushi Takatori, Munehiro Matsui, Yusuke Asai +1 more | 2014-11-25 |
| 8891555 | Spatial multiplexing wireless transmission system, spatial multiplexing wireless transmission method and computer program | Koichi Ishihara, Yasushi Takatori, Yusuke Asai, Wenjie Jiang, Tomoyuki Yamada +1 more | 2014-11-18 |
| 8855485 | Frequency offset estimating method and frequency offset estimating apparatus | Tadao Nakagawa, Yasushi Takatori, Munehiro Matsui, Koichi Ishihara, Takayuki Kobayashi +5 more | 2014-10-07 |
| 8830965 | Radio communication method, radio communication system, radio base station, and radio terminal station | Tomoki Murakami, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi, Takefumi Hiraguri +1 more | 2014-09-09 |
| 8787769 | Chromatic dispersion value calculating apparatus, optical signal receiving apparatus, optical signal transmitting apparatus, and chromatic dispersion value calculation method | Koichi Ishihara, Takayuki Kobayashi, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more | 2014-07-22 |
| 8781029 | Frequency offset estimation apparatus, reception apparatus, frequency offset estimation method, and reception method | Tadao Nakagawa, Munehiro Matsui, Koichi Ishihara, Takayuki Kobayashi, Etsushi Yamazaki +5 more | 2014-07-15 |
| 8488696 | Receiver device, communication system and receiving method | Koichi Ishihara, Takayuki Kobayashi, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +5 more | 2013-07-16 |
| 8355637 | Optical OFDM receiver, optical transmission system, subcarrier separation circuit, and subcarrier separation method | Akihide Sano, Eiichi Yamada, Takayuki Kobayashi, Koichi Ishihara, Yutaka Miyamoto | 2013-01-15 |