Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12418316 | Array antenna system and nonlinear distortion suppression method | Tomoya Ota, Yoji Ohashi | 2025-09-16 |
| 12028097 | Radio communication device and distortion compensation method | Tomoya Ota | 2024-07-02 |
| 11689229 | Wireless communication device and distortion compensation method | Tomoya Ota | 2023-06-27 |
| 11424774 | Wireless communication apparatus and coefficient updating method | Tomoya Ota, Hiroyoshi Ishikawa, Toru Maniwa | 2022-08-23 |
| 11387878 | Wireless communication apparatus and wireless communication method | Tomoya Ota | 2022-07-12 |
| 11218117 | Amplifier circuit and antenna device | Masayuki Hosoda, Yoichi Kawano | 2022-01-04 |
| 11196537 | Wireless communication apparatus and coefficient update method | — | 2021-12-07 |
| 11050391 | Distortion compensation apparatus and distortion compensation method | — | 2021-06-29 |
| 10659124 | Multiantenna communication device and coefficient update method | Takenori Ohshima, Yoji Ohashi, Hiroyoshi Ishikawa, Atsushi Honda, Toru Maniwa +3 more | 2020-05-19 |
| 10523332 | Optical transmitter and method for transmitting optical signal | — | 2019-12-31 |
| 10505570 | Distortion compensating device and distortion compensation method | Hiroyoshi Ishikawa | 2019-12-10 |
| 10348413 | Optical transmitter and method for transmitting optical signal | — | 2019-07-09 |
| 10291444 | Transmission device with pulse width modulation and transmission system | — | 2019-05-14 |
| 9838137 | Device and method for transmitting optical signal in which a plurality of signals are multiplexed | — | 2017-12-05 |
| 9793995 | Communication device that transmits signals via a plurality of antennas and communication system | — | 2017-10-17 |
| 9692463 | Wireless transmission system and signal transmission method | — | 2017-06-27 |
| 9571138 | Transmission device and noise removal method | — | 2017-02-14 |
| 9559638 | Distortion compensation apparatus and distortion compensation method | — | 2017-01-31 |
| 9509404 | Wireless transmission system and distortion compensation method | — | 2016-11-29 |
| 9444412 | Distortion compensation apparatus and method therefor | — | 2016-09-13 |
| 9444409 | Amplification device and amplification method | — | 2016-09-13 |
| 9397619 | Distortion compensation apparatus and distortion compensation method | — | 2016-07-19 |
| 9374256 | Transmitter and method for reducing peak-to-average power ratio | — | 2016-06-21 |
| 9294047 | Power amplifier apparatus, transmitter apparatus, and method of controlling the power amplifier apparatus | Toshio Kawasaki, Hiroyoshi Ishikawa, Kazuo Nagatani, Yuichi Utsunomiya, Hajime Hamada | 2016-03-22 |
| 9276533 | Distortion compensation apparatus and method | — | 2016-03-01 |