Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9100082 | Radio communication system and a repeater | — | 2015-08-04 |
| 8923908 | Distributed antenna system | — | 2014-12-30 |
| 8494076 | MIMO wireless data communication system, MIMO wireless data communication method and MIMO wireless data communication apparatus | Shigenori Hayase, Keisuke Yamamoto | 2013-07-23 |
| 8363634 | Wireless communication method, wireless communication apparatus and access point apparatus | Keisuke Yamamoto, Shigenori Hayase | 2013-01-29 |
| 8310995 | Systems and methods for wireless communication using SDMA | Shinji Murai, Tomoaki Ishifuji, Takashi Yano, Shigenori Hayase | 2012-11-13 |
| 8184724 | Wireless communication system and wireless communication method | Keisuke Yamamoto | 2012-05-22 |
| 8155219 | Apparatus and method for peak suppression in wireless communication systems | Shigenori Hayase, Takashi Yano, Keisuke Yamamoto, Yunjian Jia | 2012-04-10 |
| 8111667 | Wireless transceiver | Tatemi Ido | 2012-02-07 |
| 7817741 | MIMO wireless data communication system, MIMO wireless data communication method and MIMO wireless data communication apparatus | Shigenori Hayase, Keisuke Yamamoto | 2010-10-19 |
| 7773686 | MIMO wireless data transmission system | Shigenori Hayase, Keisuke Yamamoto | 2010-08-10 |
| 7660288 | Radio communication device | Shigenori Hayase, Tomoaki Ishifuji | 2010-02-09 |
| 7493092 | Wireless transceiver having plural transmission methods | Tatemi Ido | 2009-02-17 |
| 7386067 | Frequency offset cancellation circuit for data determination in wireless communications | Takao Kobayashi, Kazuhiko Kawai | 2008-06-10 |
| 7353032 | Method, system, and apparatus for detecting a position of a terminal in a network | Atsushi Ogino, Takashi Yano, Katsuhiko Tsunehara, Ryota Yamasaki, Hideya Suzuki +1 more | 2008-04-01 |
| 7167712 | Method, system, and apparatus for detecting a position of a terminal in a network | Atsushi Ogino, Takashi Yano, Katsuhiko Tsunehara, Ryota Yamasaki, Hideya Suzuki +1 more | 2007-01-23 |
| 7139583 | Positioning system and method based on time difference of arrival | Ryota Yamasaki, Atsushi Ogino | 2006-11-21 |
| 7136433 | Frequency offset cancellation circuit for data determination in FM wireless communications | Takao Kobayashi, Kazuhiko Kawai | 2006-11-14 |
| 7016665 | Charging method and terminal equipment in the information and communication network system | Tsuyoshi Tamaki, Tomoaki Ishifuji, Nobukazu Doi, Kazuko Hamaguchi | 2006-03-21 |
| 6963269 | Contactless IC card | Takeshi Saitoh, Tomoaki Ishifuji | 2005-11-08 |
| 6675007 | Charging method and terminal equipment in the information and communication network system | Tsuyoshi Tamaki, Tomoaki Ishifuji, Nobukazu Doi, Kazuko Hamaguchi | 2004-01-06 |
| 6570490 | Contactless IC card | Takeshi Saitoh, Tomoaki Ishifuji | 2003-05-27 |
| 6527177 | Automatic identification equipment and IC cards | Tomoaki Ishifuji | 2003-03-04 |
| 6508400 | Automatic identification equipment and IC cards | Tomoaki Ishifuji | 2003-01-21 |
| 6031863 | Wireless LAN system | Hidehiko Jusa | 2000-02-29 |
| 6014406 | Frequency-hopped wireless communication system and mobile wireless terminal | Tomoaki Ishifuji, Masato Hirai, Hidehiko Jusa, Takaharu Aoyama, Kenichiro Orita | 2000-01-11 |