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Jun Takeda, Minami-Ashigara-Shi JP

Jun Takeda, Minami-Ashigara-Shi JP

Patent application numberDescriptionPublished
20090192256POLYMER BLEND FILM CONTAINING CYCLIC POLYOLEFIN - A polymer blend film contains a film forming material includes at least a polymer having an absolute value of an intrinsic birefringence of 0.02 or less, and a cyclic olefin resin, wherein the film has a haze of 5% or less.07-30-2009
20090244705PROTECTIVE FILM FOR POLARIZERS - A protective film for polarizers, including a cellulose resin having an acyl substituent with from 2 to 4 carbon atoms and having a degree of acyl substitution of from 2.1 to 2.7, which satisfies 25≦Re≦100 and 50≦Rth≦300 and in which the cellulose resin contributes to expression of at least 40% of the Re in the film.10-01-2009
20090317567CELLULOSE ESTER FILM, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose ester film with Rth>0 nm comprising a cellulose ester having a total degree of substitution of at least 2.3 and a polymer X with a weight-average molecular weight of 500-100000 satisfying 30%≦A≦100%, wherein A indicates the polymerization ratio of a monomer whose homopolymer has a negative birefringence, is excellent in humidity stability and wet heat durability.12-24-2009
20100020273POLYMER FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY - A polymer film stretched after formed by solution casting, of which the wavelength dispersion of the refractivity anisotropy and/or the refractivity anisotropy differ between two surfaces of the film is disclosed.01-28-2010
20100040854CELLULOSE ACYLATE FILM AND POLARIZER - A cellulose acylate film comprising at least one compound having a negative birefringence and satisfying 30 nm02-18-2010
20100055356CELLULOSE ACYLATE LAMINATE FILM, METHOD FOR PRODUCING SAME, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A stretched cellulose acylate laminate film having a skin layer containing a cellulose acylate with a total degree of acyl substitution of more than 2.7 and a core layer containing a cellulose acylate with a total degree of acyl substitution of 2.0-2.7 wherein the core layer is thicker than the skin B layer and at least one of these layers contains a retardation-controlling agent, is excellent in high expressibility, little optical unevenness and good releasability from a support.03-04-2010
20110001904CELLULOSE ESTER FILM, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A cellulose ester film comprising at least one polycondensate ester that comprises a dicarboxylic acid residue mixture having an average carbon number of from 5.5 to 10.0 and comprising an aromatic dicarboxylic acid residue and an aliphatic dicarboxylic acid residue, and an aliphatic diol residue having an average carbon number of from 2.5 to 7.0.01-06-2011
20110101287OPTICAL FILM, METHOD FOR PRODUCING SAME, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - An optical film comprising a cellulose acylate resin having a total degree of acyl substitution of less than 2.5 and a cellulose acylate resin having a total degree of acyl substitution of 2.5 or more, and satisfying the following formula (1):05-05-2011
20110123768PLASTIC FILM, METHOD FOR PRODUCING SAME, POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE - A plastic film having an internal haze of at most 0.08 and a total haze of at least 0.41 is, when attached to a polarizer and incorporated in a display device as a retardation film therein, effective for bettering the contrast of the device, and has good film handling characteristics during transport.05-26-2011

Patent applications by Jun Takeda, Minami-Ashigara-Shi JP