Inventor
KOJIMA YASUYUKI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “KOJIMA YASUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
27 patentsUS6297618B2Oct 2, 2001
Power storage device and method of measuring voltage of storage battery
HITACHI LTD98 citations98
US6603807B1Aug 5, 2003
Isolator and a modem device using the isolator
HITACHI LTD85 citations97
US6611051B2Aug 26, 2003
Semiconductor device and communication terminal using thereof
HITACHI LTD49 citations96
US6389063B1May 14, 2002
Signal transmission apparatus using an isolator, modem, and information processor
HITACHI LTD74 citations94
US6570343B1May 27, 2003
Device for turning on light and illumination apparatus
HITACHI LTD19 citations93
US7091588B2Aug 15, 2006
Semiconductor device including primary and secondary side circuits on first and second substrates with capacitive insulation
HITACHI LTD22 citations92
US6407432B1Jun 18, 2002
Semiconductor device
HITACHI LTD36 citations92
US3984844AOct 5, 1976
Thermal recording apparatus
HITACHI LTD46 citations92
US5259000ANov 2, 1993
Modulator-demodulator apparatus and system
HITACHI LTD24 citations91
US5805312ASep 8, 1998
Thermographical image copier system with real time copying and variable read and record speeds
HITACHI LTD22 citations90
US7598605B2Oct 6, 2009
Semiconductor device having capacitive insulation means and communication terminal using the device
HITACHI LTD9 citations84
US6993765B2Jan 31, 2006
Controller and operating system
HITACHI LTD19 citations84
US6853063B2Feb 8, 2005
Semiconductor device and communication terminal using thereof
HITACHI LTD12 citations84
US4649401AMar 10, 1987
Thermal recording apparatus
HITACHI LTD21 citations82
US4149171AApr 10, 1979
Thermal recording method
HITACHI LTD26 citations82
US6734641B2May 11, 2004
Device for turning on light and illumination apparatus
HITACHI LTD11 citations74
US6437825B1Aug 20, 2002
Image processing apparatus having plural image processors and apparatus which merges data to be input and output to the image processors
HITACHI LTD7 citations74
US5555095ASep 10, 1996
Image signal processing apparatus
HITACHI LTD5 citations74
US4597016AJun 24, 1986
Encoding/decoding system
HITACHI LTD13 citations74
US7289553B2Oct 30, 2007
Isolator and a modem device using the isolator
HITACHI LTD6 citations73
US6445055B2Sep 3, 2002
Semiconductor integrated circuit device and manufacturing method thereof
HITACHI LTD11 citations70
US5162838ANov 10, 1992
Facsimile apparatus and method for processing a fixed document
HITACHI LTD14 citations70
US5812274ASep 22, 1998
Image signal processing apparatus
HITACHI LTD1 citations63
US7522692B2Apr 21, 2009
Isolator and a modem device using the isolator
HITACHI LTD4 citations62
US6344809B1Feb 5, 2002
Line interface circuit and information communication apparatus using it
HITACHI LTD5 citations62
US4074280AFeb 14, 1978
Thermal recording apparatus
HITACHI LTD6 citations62
US6476750B1Nov 5, 2002
Over-sampling A/D, D/A converter
HITACHI LTD0 citations52
HITACHI APPLIANCES INC
3 patentsUS7523619B2Apr 28, 2009
Indoor and outdoor unit communication via signal from a power line
HITACHI APPLIANCES INC48 citations95
US7334417B2Feb 26, 2008
Air conditioner and power line communication system
HITACHI APPLIANCES INC15 citations80
US7770403B2Aug 10, 2010
Indoor and outdoor unit communication via signal from a power line
HITACHI APPLIANCES INC6 citations72