Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8310995 | Systems and methods for wireless communication using SDMA | Shinji Murai, Takashi Yano, Masaaki Shida, Shigenori Hayase | 2012-11-13 |
| 7969347 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Katsuhiko Tsunehara, Nobukazu Doi, Mikio Kuwahara | 2011-06-28 |
| 7711376 | Method of providing location service using CDMA-based cellular phone system, a method of measuring location and location system | Atsushi Ogino, Mikio Kuwahara | 2010-05-04 |
| 7663532 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Katsuhiko Tsunehara, Nobukazu Doi, Mikio Kuwahara | 2010-02-16 |
| 7660288 | Radio communication device | Masaaki Shida, Shigenori Hayase | 2010-02-09 |
| 7609197 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Katsuhiko Tsunehara, Nobukazu Doi, Mikio Kuwahara | 2009-10-27 |
| 7319684 | System and method for wireless communication using a management server and access points | Tsuyoshi Tamaki, Takashi Yano, Takaki Uta | 2008-01-15 |
| 7233581 | Digital radio communication system for multi-application | Hideya Suzuki, Nobukazu Doi | 2007-06-19 |
| 7209765 | Wireless data communication system, wireless data communication method and communication apparatus | Shigenori Hayase, Shinji Murai | 2007-04-24 |
| 7116709 | Communication method of contactless ID card and integrated circuit used in communication method | Satoshi Tanaka, Kenji Nagai, Katsuhiro Furukawa | 2006-10-03 |
| 7016665 | Charging method and terminal equipment in the information and communication network system | Tsuyoshi Tamaki, Masaaki Shida, Nobukazu Doi, Kazuko Hamaguchi | 2006-03-21 |
| 6963269 | Contactless IC card | Takeshi Saitoh, Masaaki Shida | 2005-11-08 |
| 6900753 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Katsuhiko Tsunehara, Nobukazu Doi, Mikio Kuwahara | 2005-05-31 |
| 6889051 | Method and apparatus for measuring transmitting time offset of a base station | Atsushi Ogino, Mikio Kuwahara, Kenzaburo Fujishima | 2005-05-03 |
| 6865394 | Location detection method, location detection system and location detection program | Atsushi Ogino, Mikio Kuwahara | 2005-03-08 |
| 6765959 | Communication method of contactless ID card and integrated circuit used in communication method | Satoshi Tanaka, Kenji Nagai, Katsuhiro Furukawa | 2004-07-20 |
| 6731602 | Packet communication system and packet communication apparatus | Koji Watanabe | 2004-05-04 |
| 6731905 | Fixed wireless access system and apparatus therefor | Atsushi Ogino, Hideya Suzuki, Nobukazu Doi | 2004-05-04 |
| 6704547 | Wireless communication base station transmission timing offset correction system | Mikio Kuwahara, Nobukazu Doi | 2004-03-09 |
| 6675007 | Charging method and terminal equipment in the information and communication network system | Tsuyoshi Tamaki, Masaaki Shida, Nobukazu Doi, Kazuko Hamaguchi | 2004-01-06 |
| 6671649 | Position calculation method and position calculation apparatus | Mikio Kuwahara, Takashi Yano, Kenzaburo Fujishima | 2003-12-30 |
| 6657579 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Katsuhiko Tsunehara, Nobukazu Doi, Mikio Kuwahara | 2003-12-02 |
| 6570490 | Contactless IC card | Takeshi Saitoh, Masaaki Shida | 2003-05-27 |
| 6556943 | Position calculation method and position calculation apparatus | Mikio Kuwahara, Takashi Yano, Kenzaburo Fujishima | 2003-04-29 |
| 6527177 | Automatic identification equipment and IC cards | Masaaki Shida | 2003-03-04 |