Inventor
OKAWA KOICHI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “OKAWA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTT DOCOMO INC
8 patentsUS7298721B2Nov 20, 2007
Single-carrier/DS-CDMA packet transmitting method, uplink packet transmitting method in multi carrier/DS-CDMA mobile communication system, and structure of downlink channel in multi carrier/DS-CDMA mobile communication system
NTT DOCOMO INC39 citations92
US7142888B2Nov 28, 2006
Radio communication method, base station and mobile station
NTT DOCOMO INC37 citations92
US7120467B2Oct 10, 2006
Radio communication method and base station
NTT DOCOMO INC23 citations92
US7099697B2Aug 29, 2006
Base station, mobile communication system, and communication method
NTT DOCOMO INC29 citations92
US7233812B2Jun 19, 2007
Directional beam communication system, directional beam communication method, base station and controller
NTT DOCOMO INC7 citations74
US7027839B2Apr 11, 2006
Communication method using directional beam and radio base station
NTT DOCOMO INC10 citations74
US7190957B2Mar 13, 2007
Base station connection method, radio network controller, and mobile station
NTT DOCOMO INC9 citations73
US8005110B2Aug 23, 2011
Single carrier/DS-CDMA packet transmission method, an uplink packet transmission method in a multi-carrier/DS-CDMA mobile communications system, and a structure of a downlink channel in a multi-carrier/DS-CDMA mobile communications system
NTT DOCOMO INC0 citations52