Issued Patents All Time
Showing 51–75 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10038507 | Optical transmission system, phase compensation method, and optical reception apparatus | Mitsuteru YOSHIDA, Etsushi Yamazaki, Seiji Okamoto, Hiroyuki Uzawa, Kengo Horikoshi +6 more | 2018-07-31 |
| 9882614 | Wireless signal transmitting method and wireless apparatus | Tomoki Murakami, Yusuke Asai, Riichi Kudo, Masato Mizoguchi, Takeo Ichikawa | 2018-01-30 |
| 9698932 | Optical transmission/reception system, transmitter, receiver, and optical transmission/reception method | Yoshiaki Kisaka, Masahito Tomizawa, Etsushi Yamazaki | 2017-07-04 |
| 9667350 | Optical receiving device and phase cycle reduction method | Kengo Horikoshi, Kohki Shibahara, Etsushi Yamazaki, Mitsuteru YOSHIDA, Takayuki Kobayashi +4 more | 2017-05-30 |
| 9621299 | Coherent communication system, communication method, and transmission method | Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka, Tadao Nakagawa +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 | Takayuki Kobayashi, Riichi Kudo, 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 | Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more | 2016-12-13 |
| 9363003 | Transmitter and wireless communication method | Yasushi Takatori, Masato Mizoguchi, Yusuke Asai, Tomoki Murakami | 2016-06-07 |
| 9313007 | Wireless apparatus and training signal transmission method | Riichi Kudo, Yusuke Asai, Tomoki Murakami, Masato Mizoguchi | 2016-04-12 |
| 9276652 | Wireless communication system and wireless communication method | Riichi Kudo, Munehiro Matsui, Tomoki Murakami, Takeo Ichikawa, Yusuke Asai +2 more | 2016-03-01 |
| 9184809 | Wireless communication method and access point apparatus | Riichi Kudo, Tomoki Murakami, 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, Riichi Kudo, Tadao Nakagawa +1 more | 2015-11-03 |
| 9160600 | Method for receiving frequency domain multiplexed signal and device for receiving frequency domain multiplexed signal | Riichi Kudo, Takayuki Kobayashi, Yasushi Takatori, Hideyuki Nosaka, Munehiro Matsui +6 more | 2015-10-13 |
| 8971703 | Wavelength dispersion amount estimation method, wavelength dispersion compensation circuit, and reception device | Etsushi Yamazaki, Takayuki Kobayashi, Masahito Tomizawa, Riichi Kudo, Tadao Nakagawa +1 more | 2015-03-03 |
| 8934782 | Transmission method, reception method, transmitter apparatus, and receiver device | Tadao Nakagawa, Etsushi Yamazaki, Takayuki Kobayashi, Riichi Kudo, 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 | Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Munehiro Matsui, Masato Mizoguchi +6 more | 2015-01-06 |
| 8891555 | Spatial multiplexing wireless transmission system, spatial multiplexing wireless transmission method and computer program | Yasushi Takatori, Yusuke Asai, Riichi Kudo, Wenjie Jiang, Tomoyuki Yamada +1 more | 2014-11-18 |
| 8855485 | Frequency offset estimating method and frequency offset estimating apparatus | Tadao Nakagawa, Yasushi Takatori, Riichi Kudo, Munehiro Matsui, Takayuki Kobayashi +5 more | 2014-10-07 |
| 8787769 | Chromatic dispersion value calculating apparatus, optical signal receiving apparatus, optical signal transmitting apparatus, and chromatic dispersion value calculation method | Takayuki Kobayashi, Riichi Kudo, 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, Riichi Kudo, Takayuki Kobayashi, Etsushi Yamazaki +5 more | 2014-07-15 |
| 8488696 | Receiver device, communication system and receiving method | Takayuki Kobayashi, Riichi Kudo, 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, Yutaka Miyamoto, Riichi Kudo | 2013-01-15 |
| 8179995 | Reception device, transmission device, radio transmission/reception system, and radio reception method | Yasushi Takatori, Syuji Kubota | 2012-05-15 |
| 6528176 | Structure of hemmed together metal plate materials | Katsuhiko Asai | 2003-03-04 |
| 5599564 | Automatic stamper exchange device and injection molding apparatus employing the exchange device | Kiyoshi Takii, Kozo Kawarazaki, Kazuhiro Oishi, Nobuyuki Hirayama | 1997-02-04 |