Inventor
YAMAO YASUSHI
JP47 patents
⚠️ This page may combine multiple inventors who share the name “YAMAO YASUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NTT DOCOMO INC
29 patentsUS7072586B2Jul 4, 2006
Radio base station system and central control station with unified transmission format
NTT DOCOMO INC175 citations98
US7042283B2May 9, 2006
High-efficiency linear power amplifier
NTT DOCOMO INC95 citations97
US7702280B2Apr 20, 2010
Mobile communication system, transmission station, reception station, relay station, communication path deciding method, and communication path deciding program
NTT DOCOMO INC27 citations93
US7620021B1Nov 17, 2009
Method, base station and mobile station for timeslot selection and timeslot assignment
NTT DOCOMO INC35 citations93
US7519029B2Apr 14, 2009
Radio communication system, base station, relay station, mobile station, and packet transmission control method
NTT DOCOMO INC22 citations93
US7443816B2Oct 28, 2008
Packet transmission method, base station and mobile station
NTT DOCOMO INC45 citations93
US7224954B2May 29, 2007
Method and device for communicating via an ad-hoc wireless network
NTT DOCOMO INC39 citations93
US7130638B2Oct 31, 2006
Radio resource allocation method and base station using the same
NTT DOCOMO INC45 citations93
US6909905B2Jun 21, 2005
Mobile communications control including change of bit rate based on traffic and transmit power
NTT DOCOMO INC30 citations93
US6831904B1Dec 14, 2004
Cluster structured mobile communication system base station, cluster control station, line control station and mobile station
NTT DOCOMO INC31 citations93
US7418056B2Aug 26, 2008
Digital predistorter using power series model
NTT DOCOMO INC26 citations92
US7170342B2Jan 30, 2007
Linear power amplification method and linear power amplifier
NTT DOCOMO INC43 citations92
US7170344B2Jan 30, 2007
Multi-band predistorter using power series representation
NTT DOCOMO INC29 citations92
US6895216B2May 17, 2005
Rendering multicast service with sufficient reception quality to wireless terminals
NTT DOCOMO INC40 citations92
US6882845B2Apr 19, 2005
Autonomous zone forming communication device and autonomous zone forming method
NTT DOCOMO INC20 citations92
US6785552B2Aug 31, 2004
Location managing method for managing location of mobile station in mobile wireless packet communication system and mobile wireless packet communication system
NTT DOCOMO INC21 citations91
US7373103B2May 13, 2008
Relay terminal, base station, charging server, communication system, charging method, program computer data signal, and storage medium
NTT DOCOMO INC11 citations84
US7245195B2Jul 17, 2007
Coplanar waveguide filter and method of forming same
NTT DOCOMO INC13 citations84
US7149527B2Dec 12, 2006
Efficient and stable radio resource allocation
NTT DOCOMO INC12 citations84
US7119621B2Oct 10, 2006
Power amplifier
NTT DOCOMO INC16 citations84
US7116909B2Oct 3, 2006
Information transmission system and information transmission method, and, optical space transmission system and optical space transmission method
NTT DOCOMO INC14 citations84
US6760588B2Jul 6, 2004
Method and apparatus for stabilizing communication in mobile communication system
NTT DOCOMO INC18 citations84
US7881660B2Feb 1, 2011
Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program
NTT DOCOMO INC6 citations74
US7292124B2Nov 6, 2007
Variable resonator and variable phase shifter
NTT DOCOMO INC9 citations74
US7006847B2Feb 28, 2006
Base station for use in multi-network connection communication system and its connecting method
NTT DOCOMO INC8 citations74
US7907890B2Mar 15, 2011
Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program
NTT DOCOMO INC2 citations63
US7272361B2Sep 18, 2007
Method and device for transmitting burst signal in mobile communication system, information distribution method, and information distribution controller
NTT DOCOMO INC3 citations63
US7161449B2Jan 9, 2007
Coplanar waveguide resonator
NTT DOCOMO INC1 citations52
US7183874B2Feb 27, 2007
Casing contained filter
NTT DOCOMO INC0 citations41
NIPPON TELEGRAPH & TELEPHONE
12 patentsUS5251330AOct 5, 1993
Linear transmitter
NIPPON TELEGRAPH & TELEPHONE121 citations97
US5203023AApr 13, 1993
Phase likelihood comparison diversity receiver
NIPPON TELEGRAPH & TELEPHONE65 citations96
US4980652ADec 25, 1990
Frequency synthesizer having compensation for nonlinearities
NIPPON TELEGRAPH & TELEPHONE117 citations96
US6512748B1Jan 28, 2003
Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic
NIPPON TELEGRAPH & TELEPHONE81 citations95
US5722065AFeb 24, 1998
Mobile communications system and mobile receiver
NIPPON TELEGRAPH & TELEPHONE19 citations93
US5203024AApr 13, 1993
Antenna selection diversity reception system
NIPPON TELEGRAPH & TELEPHONE45 citations93
US5826172AOct 20, 1998
Mobile communications system for repeatedly transmitting paging signals
NIPPON TELEGRAPH & TELEPHONE35 citations92
US5794124AAug 11, 1998
Time diversity communications system
NIPPON TELEGRAPH & TELEPHONE37 citations92
US5231632AJul 27, 1993
Radio communication equipment for a mobile station and traffic channel hand-off method using the same
NIPPON TELEGRAPH & TELEPHONE24 citations92
US6351498B1Feb 26, 2002
Robust digital modulation and demodulation scheme for radio communications involving fading
NIPPON TELEGRAPH & TELEPHONE19 citations83
US5805076ASep 8, 1998
Mobile communications system
NIPPON TELEGRAPH & TELEPHONE14 citations74
US5760702AJun 2, 1998
Receiver with symbol rate sync
NIPPON TELEGRAPH & TELEPHONE14 citations74