Inventor
IKUTA ISAO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “IKUTA ISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS4950173AAug 21, 1990
Service temperature connector and packaging structure of semiconductor device employing the same
HITACHI LTD133 citations97
US4743526AMay 10, 1988
Alloy having variable spectral reflectance and information recording material making use of the same
HITACHI LTD77 citations93
US5484686AJan 16, 1996
Optical recording media and information recording and reproducing units
HITACHI LTD21 citations92
US5475656ADec 12, 1995
Optical disk memory and information processing apparatus
HITACHI LTD25 citations92
US5420845AMay 30, 1995
Methods of varying optical properties, optical devices, information recording media and information recording methods and apparatuses
HITACHI LTD39 citations92
US5371730ADec 6, 1994
Optical memory and information processing apparatus
HITACHI LTD23 citations92
US5317556AMay 31, 1994
Information processing apparatus and optical head incorporated therein
HITACHI LTD21 citations92
US5187052AFeb 16, 1993
Optical recording medium
HITACHI LTD23 citations92
US4773059ASep 20, 1988
Information recording and reproducing apparatus having recording medium made of alloy which has at least two different crystalline structures in its solid state
HITACHI LTD30 citations92
US6127210AOct 3, 2000
Manufacturing method of CMOS thin film semiconductor device and CMOS thin film semiconductor device manufactured thereby
HITACHI LTD25 citations91
US5572502ANov 5, 1996
Optical disk apparatus
HITACHI LTD38 citations91
US4301855ANov 24, 1981
Apparatus for producing metal ribbon
HITACHI LTD35 citations91
US5583840ADec 10, 1996
ROM type optical recording medium with a high reflectivity and an optical head operable on ROM, write-one and rewritable disk
HITACHI LTD14 citations73
US5274612ADec 28, 1993
Information processor and disk memory used in the same
HITACHI LTD13 citations73
US4726858AFeb 23, 1988
Recording material
HITACHI LTD7 citations73
US6628361B2Sep 30, 2003
Liquid crystal display device and wiring structure therefor
HITACHI LTD12 citations69
USRE36624EMar 21, 2000
Optical recording media and information recording and reproducing units
HITACHI LTD3 citations62
RENESAS TECH CORP
4 patentsUS7418250B2Aug 26, 2008
Quadrature mixer circuits and mobile terminal using the same
RENESAS TECH CORP7 citations74
US7184739B2Feb 27, 2007
Quadrature mixer circuits and mobile terminal using the same
RENESAS TECH CORP9 citations74
US7805123B2Sep 28, 2010
RF transceiver using hopping frequency synthesizer
RENESAS TECH CORP3 citations62
US7340232B2Mar 4, 2008
Receiving system and semiconductor integrated circuit device for processing wireless communication signal
RENESAS TECH CORP3 citations61