Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12289772 | Wireless communication system and wireless communication method | Riichi Kudo, Hirantha Abeysekera, Shoko SHINOHARA, Yasushi Takatori, Takeo Ichikawa +1 more | 2025-04-29 |
| 12160855 | Band sharing communication system, line control method, line control device, and line control program | Daisuke Goto, Fumihiro YAMASHITA, Hiroki SHIBAYAMA, Yutaka Imaizumi, Koichi Harada +2 more | 2024-12-03 |
| 12010524 | Band sharing communication system, line control method, line control device, and line control program | Daisuke Goto, Fumihiro YAMASHITA, Hiroki SHIBAYAMA, Yutaka Imaizumi, Koichi Harada +2 more | 2024-06-11 |
| 11849487 | Wireless communication system and wireless communication method | Riichi Kudo, Hirantha Abeysekera, Shoko SHINOHARA, Yasushi Takatori, Takeo Ichikawa +1 more | 2023-12-19 |
| 11523439 | Wireless communication system and wireless communication method | Riichi Kudo, Hirantha Abeysekera, Shoko SHINOHARA, Yasushi Takatori, Takeo Ichikawa +1 more | 2022-12-06 |
| 11432235 | Wireless communication control method, wireless communication system, and management server | Akiyoshi Inoki, Keisuke Wakao, Hirantha Abeysekera, Kenichi Kawamura, Yasushi Takatori | 2022-08-30 |
| 11153919 | Wireless communication system and wireless communication control method | Akiyoshi Inoki, Hirantha Abeysekera, Kenichi Kawamura, Yasushi Takatori, Takeo Ichikawa +3 more | 2021-10-19 |
| 11026262 | Wireless communication system and wireless communication method | Riichi Kudo, Hirantha Abeysekera, Shoko SHINOHARA, Yasushi Takatori, Takeo Ichikawa +1 more | 2021-06-01 |
| 10805958 | Wireless communication system and wireless communication method | Riichi Kudo, Hirantha Abeysekera, Takeo Ichikawa, Yasushi Takatori, Masato Mizoguchi | 2020-10-13 |
| 10681735 | Wireless environment evaluation method and wireless communicaton system | Akiyoshi Inoki, Hirantha Abeysekera, Takeo Ichikawa, Masato Mizoguchi, Akira Kishida +4 more | 2020-06-09 |
| 10638341 | Wireless environment information collection system and method | Riichi Kudo, Hirantha Abeysekera, Takeo Ichikawa, Masato Mizoguchi | 2020-04-28 |
| 10602367 | Wireless communication apparatus, wireless communication system, and wireless communication method | Hirantha Abeysekera, Koichi Ishihara, Yasuhiko Inoue, Yusuke Asai, Yasushi Takatori +2 more | 2020-03-24 |
| 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, Riichi Kudo, Yasushi Takatori, 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, Riichi Kudo, Yasushi Takatori, Masato Mizoguchi +6 more | 2016-12-13 |
| 9370013 | Wireless communication method, base station, wireless communication system, and communication apparatus | Tomoki Murakami, Riichi Kudo, Takeo Ichikawa, Yasushi Takatori, Yusuke Asai +1 more | 2016-06-14 |
| 9276652 | Wireless communication system and wireless communication method | Riichi Kudo, Tomoki Murakami, Takeo Ichikawa, Yusuke Asai, Koichi Ishihara +2 more | 2016-03-01 |
| 9160600 | Method for receiving frequency domain multiplexed signal and device for receiving frequency domain multiplexed signal | Riichi Kudo, Takayuki Kobayashi, Koichi Ishihara, Yasushi Takatori, Hideyuki Nosaka +6 more | 2015-10-13 |
| 8934782 | Transmission method, reception method, transmitter apparatus, and receiver device | Tadao Nakagawa, Etsushi Yamazaki, Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo +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, Riichi Kudo, Yasushi Takatori, Masato Mizoguchi +6 more | 2015-01-06 |
| 8897163 | Wireless communication method, base station, wireless communication system, and communication apparatus | Tomoki Murakami, Riichi Kudo, Takeo Ichikawa, Yasushi Takatori, Yusuke Asai +1 more | 2014-11-25 |
| 8855485 | Frequency offset estimating method and frequency offset estimating apparatus | Tadao Nakagawa, Yasushi Takatori, Riichi Kudo, Koichi Ishihara, 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 | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Masato Mizoguchi +6 more | 2014-07-22 |
| 8781029 | Frequency offset estimation apparatus, reception apparatus, frequency offset estimation method, and reception method | Tadao Nakagawa, Koichi Ishihara, Riichi Kudo, Takayuki Kobayashi, Etsushi Yamazaki +5 more | 2014-07-15 |
| 8488696 | Receiver device, communication system and receiving method | Koichi Ishihara, Takayuki Kobayashi, Riichi Kudo, Yasushi Takatori, Masato Mizoguchi +5 more | 2013-07-16 |