P

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 patents
US4950173AAug 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 patents