Inventor
IKOMA HEIJI
JP26 patents
⚠️ This page may combine multiple inventors who share the name “IKOMA HEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
11 patentsUS6479930B1Nov 12, 2002
Dispersion-type electroluminescence element
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD92 citations97
US6010742AJan 4, 2000
Electroluminescent lighting element, manufacturing method of the same, and an illuminated switch unit using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD72 citations96
US7019676B2Mar 28, 2006
D/A converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US6590516B2Jul 8, 2003
Current steering type D/A converter
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US6310492B1Oct 30, 2001
CMOS semiconductor integrated circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US5844362ADec 1, 1998
Electroluminescent light element having a transparent electrode formed by a paste material which provides uniform illumination
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD43 citations92
US5841230ANov 24, 1998
Electroluminescent lighting element with a light-permeable reflection layer and manufacturing method for the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD39 citations92
US6734817B2May 11, 2004
A/D converter, method of A/D conversion, and signal processing device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD46 citations89
US6791391B2Sep 14, 2004
Level shifting circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations84
US6492849B2Dec 10, 2002
Supply voltage detection circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73
US7042278B2May 9, 2006
Voltage reference circuit with reduced power consumption
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
PANASONIC CORP
9 patentsUS7796073B2Sep 14, 2010
Current switch circuit and D/A converter, semiconductor integrated circuit, and communication device using the same
PANASONIC CORP15 citations84
US7764211B2Jul 27, 2010
Current steering DAC
PANASONIC CORP8 citations82
US7825843B2Nov 2, 2010
D/A converter and semiconductor integrated circuit including the same
PANASONIC CORP4 citations63
US7924199B2Apr 12, 2011
Current steering DAC
PANASONIC CORP2 citations60
US7701373B2Apr 20, 2010
Current steering DAC
PANASONIC CORP6 citations60
US7982644B2Jul 19, 2011
D/A converter and semiconductor integrated circuit including the same
PANASONIC CORP0 citations52
US7973687B2Jul 5, 2011
Differential switch, D/A converter, semiconductor integrated circuit and communication apparatus
PANASONIC CORP1 citations52
US8564362B2Oct 22, 2013
Filter circuit, semiconductor integrated circuit, communication apparatus, semiconductor device, and system
PANASONIC CORP0 citations51
US7924188B2Apr 12, 2011
Rapid recovery circuit
PANASONIC CORP1 citations50