Patents by Inventor Mikiko Hojo

Mikiko Hojo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6376060
    Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 23, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
  • Patent number: 6344495
    Abstract: There is provided a photo-curable resin composition comprising a urethane-modified acrylic resin represented by structural formula (I) or (II) and a release agent as indispensable components: wherein five R1's each independently represent a hydrogen atom or a methyl group, R2 represents a C1-C16 hydrocarbon group, X and Y each represent a straight-chain or branched alkylene group, and, with the sum of l, m, n, and o being 100, l is an integer of 20 to 90, m is an integer of 0 to 50, n is an integer of 10 to 80, and o is an integer of 0 to 20; and wherein Z represents a group having a bulky cyclic structure, six R1's each independently represent a hydrogen atom or a methyl group, R2 represents a C1-C16 hydrocarbon group, X and Y each represent a straight-chain or branched alkylene group, and, with the sum of l, m, n, o, and p being 100, l is an integer of 20 to 90, m is an integer of 5 to 80, n is an integer of 0 to 50, o+p is an integer of 10 to 80, and p is
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 5, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenji Ueda, Satoshi Shioda, Mikiko Hojo
  • Patent number: 6299949
    Abstract: Disclosed is a liquid crystal display device which can assure a desired cell gap at the time of heat contact bonding involved in the assembling of cells in a liquid crystal display device and, after the preparation of liquid crystal cells, has excellent reliability, can cope with an increase in cell thickness at high temperatures, and can inhibit a foaming phenomenon in a liquid crystal layer at low temperatures. The liquid crystal display device comprises: two substrates; a liquid crystal sandwiched and supported between the two substrates; and spacers, for maintaining a predetermined substrate-substrate spacing, provided on at least one of the substrates in its portions where the liquid crystal is sandwiched and supported, the spacers being formed of a photocured resin layer, the photocured resin layer having such properties that, as determined by the measurement of dynamic viscoelasticity in the temperature range of −40° C. to 80° C., the storage modulus (E′) is not more than 5.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: October 9, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoshi Shioda, Mikiko Hojo, Kenji Ueda, Shunsuke Sega