Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9781719 | Multichannel wireless communication system, base station, and method for using channel | Keigo Hasegawa, Masayuki Takekawa, Kei Yanagisawa, Madoka Tanaka | 2017-10-03 |
| 9609523 | Relaying operation between base stations using white spaces in wireless access system | Masayuki Takekawa, Keigo Hasegawa, Kei Yanagisawa | 2017-03-28 |
| 9438329 | Wireless communication system | Masayuki Takekawa, Keigo Hasegawa | 2016-09-06 |
| 9319888 | System and method for selecting unlicensed frequency band using hybrid TDD and FDD | Keigo Hasegawa, Masayuki Takekawa | 2016-04-19 |
| 9185686 | Multichannel wireless communication system, base station, and channel using method | Keigo Hasegawa, Masayuki Takekawa | 2015-11-10 |
| 9049726 | Heterogeneous-systems coexistence method and wireless gateway apparatus | Keigo Hasegawa, Masayuki Takekawa, Kei Yanagisawa | 2015-06-02 |
| 8971277 | Wireless communication system and receiving device | Masayuki Takekawa, Keigo Hasegawa, Seishi Sasaki | 2015-03-03 |
| 8958505 | Communication apparatus | Satoru Ejima, Takehiko Kobayashi | 2015-02-17 |