Inventor
HIRA YASUO
JP40 patents
⚠️ This page may combine multiple inventors who share the name “HIRA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
37 patentsUS6099134AAug 8, 2000
Liquid crystal display device
HITACHI LTD185 citations99
US5961198AOct 5, 1999
Liquid crystal display device and method of manufacturing backlighting light guide panel therefor
HITACHI LTD318 citations99
US6522373B1Feb 18, 2003
Liquid crystal display device, light guide plate, and method for producing light guide plate
HITACHI LTD82 citations97
US6633351B2Oct 14, 2003
Optical functionality sheet, and planar light source and image display apparatus using the same sheet
HITACHI LTD64 citations96
US5567333AOct 22, 1996
Thin film magnetic head, process for production thereof
HITACHI LTD67 citations95
US6781733B1Aug 24, 2004
Optical film and liquid crystal display using the same
HITACHI LTD23 citations93
US6727963B1Apr 27, 2004
Liquid crystal display
HITACHI LTD33 citations93
US6704070B2Mar 9, 2004
Method for manufacturing a light guide plate
HITACHI LTD15 citations93
US6700634B2Mar 2, 2004
Backlit lighting device, liquid crystal display device utilizing same, and liquid crystal display device manufacturing method
HITACHI LTD45 citations93
US6700632B2Mar 2, 2004
Illuminator apparatus
HITACHI LTD28 citations93
US6661552B2Dec 9, 2003
Rear projection apparatus
HITACHI LTD15 citations93
US6334689B1Jan 1, 2002
Liquid crystal display
HITACHI LTD29 citations92
US6198601B1Mar 6, 2001
Thin film magnetic head having non-linear tapered rails
HITACHI LTD17 citations92
US5910864AJun 8, 1999
Thin film magnetic head having non-linear rails
HITACHI LTD26 citations92
US5371582ADec 6, 1994
Thickness/depth measuring apparatus and method for measuring the thickness of a film and the depth of a groove
HITACHI LTD41 citations92
US5274727ADec 28, 1993
Second harmonic generator and method of fabrication thereof
HITACHI LTD25 citations92
US5191624AMar 2, 1993
Optical information storing apparatus and method for production of optical deflector
HITACHI LTD22 citations92
US5125740AJun 30, 1992
Method and apparatus for measuring optical constants of a thin film as well as method and apparatus for fabricating a thin film utilizing same
HITACHI LTD54 citations92
US4904037AFeb 27, 1990
Waveguide type optical device with thermal compensation layers
HITACHI LTD32 citations92
US4145369AMar 20, 1979
Flame-retardant epoxy resin compositions
HITACHI LTD37 citations92
US4444704AApr 24, 1984
Process for producing integral skin polyurethane foam
HITACHI LTD26 citations82
US6803977B2Oct 12, 2004
Liquid crystal display apparatus
HITACHI LTD7 citations74
US6717635B2Apr 6, 2004
Liquid crystal display device with a light guide having random v-shaped dots
HITACHI LTD12 citations74
US6661479B2Dec 9, 2003
Liquid crystal display apparatus
HITACHI LTD10 citations74
US6639705B2Oct 28, 2003
Optical film
HITACHI LTD11 citations74
US4927044AMay 22, 1990
Heat insulating case and process for preparing the same
HITACHI LTD15 citations74
US5195070AMar 16, 1993
Optical information processing apparatus and optical pickup therefor
HITACHI LTD15 citations73
US4514270AApr 30, 1985
Process for regenerating cleaning fluid
HITACHI LTD17 citations73
US4478902AOct 23, 1984
Screen for projection television
HITACHI LTD13 citations73
US4342842AAug 3, 1982
Process for producing rigid polyurethane foam
HITACHI LTD12 citations73
US4544462AOct 1, 1985
Process for removing metal surface oxide
HITACHI LTD15 citations72
US4906063AMar 6, 1990
Wave guide type optical device and method of fabricating the same
HITACHI LTD13 citations71
US6958790B2Oct 25, 2005
Liquid crystal display apparatus
HITACHI LTD2 citations63
US4473662ASep 25, 1984
Catalyst and composition for producing polyurethane foam
HITACHI LTD6 citations63
US4409341AOct 11, 1983
Composition for fire retardant urethane foam
HITACHI LTD5 citations62
US6690544B2Feb 10, 2004
Magnetic head and magnetic head manufacturing method
HITACHI LTD0 citations51
US6504680B2Jan 7, 2003
Magnetic head and magnetic head manufacturing method
HITACHI LTD0 citations51