Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12114248 | Radio communication system and radio communication method | — | 2024-10-08 |
| 11653297 | Wireless communication system, wireless communication method, and mobile vehicle | Tatsuya Abe | 2023-05-16 |
| 10374688 | Wireless communication system and wireless communication method | Kei Yanagisawa | 2019-08-06 |
| 10070406 | Method for adjusting transmission timing in multiple access system | Keigo Hasegawa | 2018-09-04 |
| 9781719 | Multichannel wireless communication system, base station, and method for using channel | Keigo Hasegawa, Keat Beng Toh, Kei Yanagisawa, Madoka Tanaka | 2017-10-03 |
| 9743412 | Wireless communication system | Kei Yanagisawa, Keigo Hasegawa | 2017-08-22 |
| 9713171 | Selecting white space frequency based on preamble cycle length | Kei Yanagisawa, Keigo Hasegawa | 2017-07-18 |
| 9661644 | Wireless communication system | Keigo Hasegawa, Kei Yanagisawa | 2017-05-23 |
| 9609523 | Relaying operation between base stations using white spaces in wireless access system | Keigo Hasegawa, Kei Yanagisawa, Keat Beng Toh | 2017-03-28 |
| 9467867 | Wireless communication system | Keigo Hasegawa | 2016-10-11 |
| 9438329 | Wireless communication system | Keat Beng Toh, Keigo Hasegawa | 2016-09-06 |
| 9319888 | System and method for selecting unlicensed frequency band using hybrid TDD and FDD | Keigo Hasegawa, Keat Beng Toh | 2016-04-19 |
| 9185686 | Multichannel wireless communication system, base station, and channel using method | Keigo Hasegawa, Keat Beng Toh | 2015-11-10 |
| 9049726 | Heterogeneous-systems coexistence method and wireless gateway apparatus | Keigo Hasegawa, Keat Beng Toh, Kei Yanagisawa | 2015-06-02 |
| 8971277 | Wireless communication system and receiving device | Keigo Hasegawa, Seishi Sasaki, Keat Beng Toh | 2015-03-03 |