Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7006463 | CDMA communication system and its transmission power control method | Takashi Yano, Nobukazu Doi, Takaki Uta, Keiji Hasegawa | 2006-02-28 |
| 6990351 | Equipment for the calculation of mobile handset position | Mikio Kuwahara | 2006-01-24 |
| 6950661 | Location detection method, location detection apparatus and location detection program | Koji Watanabe, Mikio Kuwahara, Kenzaburo Fujishima | 2005-09-27 |
| 6928292 | Mobile handset with position calculation function | Mikio Kuwahara | 2005-08-09 |
| 6907260 | Method for controlling transmit power for communication system | Takashi Yano, Takaki Uta, Toshiro Suzuki, Toshinori Suzuki | 2005-06-14 |
| 6900753 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Nobukazu Doi, Mikio Kuwahara, Tomoaki Ishifuji | 2005-05-31 |
| 6694142 | Wireless terminal positioning method and apparatus | Mikio Kuwahara, Ayumu Koide, Nobukazu Doi | 2004-02-17 |
| 6657579 | Method for measuring distance and position using spread spectrum signal, and an equipment using the method | Nobukazu Doi, Mikio Kuwahara, Tomoaki Ishifuji | 2003-12-02 |
| 6640107 | Wireless location handset apparatus | Mikio Kuwahara | 2003-10-28 |
| 6484034 | Radio handset and position location system | Kenzaburo Fujishima, Mikio Kuwahara, Koji Watanabe | 2002-11-19 |
| 6483816 | CDMA communication system and its transmission power control method | Takashi Yano, Nobukazu Doi, Takaki Uta, Keiji Hasegawa | 2002-11-19 |
| 6459402 | Method for measuring distance and position using spectrum signal, and an equipment using the method | Nobukazu Doi, Mikio Kuwahara, Tomoaki Ishifuji | 2002-10-01 |
| 6307844 | CDMA communication system and its transmission power control method | Takashi Yano, Nobukazu Doi, Takaki Uta, Keiji Hasegawa | 2001-10-23 |