Inventor
SAKASHITA SEIJI
JP51 patents
⚠️ This page may combine multiple inventors who share the name “SAKASHITA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
33 patentsUS7203158B2Apr 10, 2007
OFDM signal transmission system, portable terminal, and e-commerce system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD168 citations99
US5600672AFeb 4, 1997
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD237 citations99
US6067329AMay 23, 2000
VSB demodulator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD125 citations97
US5535220AJul 9, 1996
Forward error correcting transmitter and receiver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD65 citations95
US7054592B2May 30, 2006
Transmission apparatus and reception apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD36 citations92
US6967694B1Nov 22, 2005
Demodulator for demodulating digital broadcast signals
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations92
US5920228AJul 6, 1999
Digital demodulation with compensation for phase and frequency of tentatively demodulated signal
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US5610948AMar 11, 1997
Digital demodulation apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US5134707AJul 28, 1992
Satellite receiver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations92
US5014349AMay 7, 1991
Television tuner for common use in BS/UV
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD41 citations92
US4939789AJul 3, 1990
Signal receiver for terrestrial and satellite broadcastings
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations92
US5914983AJun 22, 1999
Digital signal error reduction apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations81
USRE40256EApr 22, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US5398080AMar 14, 1995
Television receiver for terrestrial broadcasting
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations74
US5241538AAug 31, 1993
Transmission apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US4987606AJan 22, 1991
Wide band transmission system with biasing of gain control circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US4806876AFeb 21, 1989
High frequency amplifier circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74
US4677692AJun 30, 1987
Frequency conversion apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
US4780909AOct 25, 1988
Signal receiver having automatic frequency characteristic adjusting capability
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations73
USRE39927ENov 27, 2007
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations63
USRE39929ENov 27, 2007
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
USRE39902EOct 30, 2007
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations63
US5239379AAug 24, 1993
Television signal receiving apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US5061999AOct 29, 1991
Multiplex signal processing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations63
USRE40255EApr 22, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE40242EApr 15, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE40241EApr 15, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE40206EApr 1, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE40175EMar 25, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE40174EMar 25, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE40134EMar 4, 2008
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE39956EDec 25, 2007
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
USRE39928ENov 27, 2007
Communication system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations52
PANASONIC CORP
15 patentsUS7809407B2Oct 5, 2010
OFDM signal transmission system, portable terminal, and e-commerce system
PANASONIC CORP42 citations96
USRE41001ENov 24, 2009
Communication system
PANASONIC CORP19 citations93
USRE42643EAug 23, 2011
Communication system
PANASONIC CORP18 citations84
USRE45737EOct 6, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP2 citations74
USRE40978ENov 17, 2009
Communication system
PANASONIC CORP3 citations74
USRE40779EJun 23, 2009
Communication system
PANASONIC CORP2 citations63
US7689163B2Mar 30, 2010
Transmission apparatus and reception apparatus
PANASONIC CORP2 citations62
USRE45784EOct 27, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE45758EOct 13, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE45706ESep 29, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE45662ESep 1, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE45663ESep 1, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE45654EAug 11, 2015
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE45218EOct 28, 2014
OFDM signal transmission system, portable terminal and E-commerce system
PANASONIC CORP0 citations52
USRE40701EApr 14, 2009
Communication system
PANASONIC CORP0 citations52
PANASONIC IP MAN CO LTD
1 patentSOVEREIGN PEAK VENTURES LLC
1 patentShowing the top 50 of 51 patents by PatentIndex Score.