Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8098743 | Pilot signal transmission method and radio communication system for enabling measurement of reception quality with high accuracy | Nahoko Kuroda, Jinsock Lee, Kojiro Hamabe | 2012-01-17 |
| 7944950 | Mobile communication system, communication control method, and base station and mobile station to be employed in the same | Kojiro Hamabe | 2011-05-17 |
| 7940811 | Mobile communication system, communication control method, and base station and mobile station to be employed in the same | Kojiro Hamabe | 2011-05-10 |
| 7830829 | FDD/CDMA transmission/reception system | Shousei Yoshida | 2010-11-09 |
| 7417975 | Cellular system and base station specification method in CDMA mode | Nahoko Takano, Kojiro Hamabe | 2008-08-26 |
| 7324470 | FDD/CDMA receiver having transmission antenna control circuit | Shousei Yoshida | 2008-01-29 |
| 7257408 | Radio communication system and transmission mode selecting method | Shingo Kikuchi, Shousei Yoshida, Yoshikazu Kakura, Masayuki Kimata | 2007-08-14 |
| 7203208 | Mobile communication system, communication control method, and base station and mobile station to be employed in the same | Kojiro Hamabe | 2007-04-10 |
| 7154915 | Mobile communication system, communication control method, and base station and mobile station to be employed in the same | Kojiro Hamabe | 2006-12-26 |
| 7139284 | Spread code allocation method and base station in CDMA cellular | Hiroshi Furukawa | 2006-11-21 |
| 7039099 | Demodulation apparatus and demodulation method for mobile communication | Koichi Tamura | 2006-05-02 |
| 6856608 | Method and base station for allocating pseudo noise code | Hiroshi Furukawa, Kojiro Hamabe | 2005-02-15 |
| 6714584 | CDMA adaptive antenna receiving apparatus and communication system | Naoto Ishii, Shousei Yoshida | 2004-03-30 |
| 6665286 | Adaptive receiving device removing interference from users and multi-paths by antenna directivity control | Yasushi Maruta, Shousei Yoshida | 2003-12-16 |
| 6509872 | Adaptive antenna receiving apparatus | Naoto Ishii, Shousei Yoshida | 2003-01-21 |
| 6487174 | S/N measuring circuit and method, transmitting electric power control apparatus and digital communicating system | Hironori Mizuguchi, Shousei Yoshida | 2002-11-26 |
| 6418320 | Mobile station and a method of reducing interference among radio channels in the mobile station | Shousei Yoshida, Hiroshi Furukawa | 2002-07-09 |
| 6373881 | CDMA receiver using sampled chip sequence for precision synchronization with received data sequence | Hironori Mizuguchi, Shousei Yoshida | 2002-04-16 |
| 6359864 | FDD/CDMA transmission/reception system | Shousei Yoshida | 2002-03-19 |
| 6222498 | CDMA multiuser receiver featuring a combination of array antenna and multiuser cancelers | Naoto Ishii, Yasushi Maruta, Shousei Yoshida | 2001-04-24 |
| 6208683 | Receiving apparatus for use in CDMA type mobile radio communication system comprising a plurality of path receivers each including a follow-up path detection unit | Hironori Mizuguchi, Shousei Yoshida | 2001-03-27 |
| 6205166 | CDMA receiver with antenna array adaptively controlled with combined errors of despread multipath components | Yasushi Maruta, Shousei Yoshida | 2001-03-20 |
| 6081516 | Multiuser receiving device for use in a CDMA system | Shousei Yoshida | 2000-06-27 |
| 6007238 | Communication method and communication system using the same | Kazuhiro Okanoue | 1999-12-28 |
| 5930229 | Interference canceller for CDMA | Shousei Yoshida | 1999-07-27 |