Inventor
OZAWA TETSUO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “OZAWA TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI CHEM IND
14 patentsUS4769307ASep 6, 1988
Optical recording member
MITSUBISHI CHEM IND41 citations92
US5280373AJan 18, 1994
Light modulating device including a liquid crystal, a polymer and dichroic dyes having maximum absorption in the different wavelength regions
MITSUBISHI CHEM IND30 citations88
US5037575AAug 6, 1991
Squarilium compound and liquid crystal composition containing the same
MITSUBISHI CHEM IND20 citations81
US4840640AJun 20, 1989
Polarizing film: polymer film base containing substituted anthraquinone dichroic dye
MITSUBISHI CHEM IND21 citations78
US4756987AJul 12, 1988
Optical recording medium
MITSUBISHI CHEM IND10 citations74
US4737443AApr 12, 1988
Optical recording medium
MITSUBISHI CHEM IND8 citations74
US4528113AJul 9, 1985
Anthraquinone dye and liquid crystal composition containing the dye
MITSUBISHI CHEM IND7 citations74
US4434072AFeb 28, 1984
Liquid crystal composition
MITSUBISHI CHEM IND8 citations74
US4841057AJun 20, 1989
Cyclic imido anthraquinone compounds
MITSUBISHI CHEM IND7 citations72
US4959172ASep 25, 1990
Liquid crystal composition containing a pleochroic azo type compound
MITSUBISHI CHEM IND13 citations69
US5104572AApr 14, 1992
Azo compound and liquid crystal composition containing the same
MITSUBISHI CHEM IND12 citations66
US4921959AMay 1, 1990
Anthraquinone compounds and polarizing film containing the same
MITSUBISHI CHEM IND2 citations61
US4507221AMar 26, 1985
Anthraquinone dye and liquid crystal composition containing the same
MITSUBISHI CHEM IND6 citations61
US4985171AJan 15, 1991
Anthraquinone type compound and liquid crystal composition containing such compound
MITSUBISHI CHEM IND2 citations56
HITACHI LTD
6 patentsUS5026505AJun 25, 1991
Guest-host type liquid crystal composition
HITACHI LTD10 citations74
US4493532AJan 15, 1985
Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid crystal composition
HITACHI LTD18 citations74
US4479885AOct 30, 1984
Phthalonitrile derivatives and a liquid crystal composition containing the same
HITACHI LTD13 citations74
US4454057AJun 12, 1984
Liquid crystal composition
HITACHI LTD9 citations74
US4610804ASep 9, 1986
Anthraquinone dyes and liquid crystal compositions including the same
HITACHI LTD3 citations63
US4483593ANov 20, 1984
Guest-host type liquid crystal composition and liquid crystal display device
HITACHI LTD4 citations63
MITSUBISHI CHEM CORP
4 patentsUS6638624B2Oct 28, 2003
Squarylium dye and filter for display device
MITSUBISHI CHEM CORP14 citations84
US6824938B2Nov 30, 2004
Electrophotographic photoreceptor
MITSUBISHI CHEM CORP13 citations82
US6836383B1Dec 28, 2004
Diphenylsquarylium compound and filter for display containing the same
MITSUBISHI CHEM CORP18 citations80
US6746629B2Jun 8, 2004
Squarylium compounds, filters for plasma display panels employing them, and plasma display panel devices
MITSUBISHI CHEM CORP9 citations74