Patents by Inventor Akira Iwasawa

Akira Iwasawa 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: 10023754
    Abstract: A metallic ink composition for inkjet printing for a polyvinyl chloride substrate, can form printed matter having superior mirror gloss and favorable scratch resistance, and is able to prevent nozzle clogging during inkjet printing, and more specifically pertains to a metallic ink composition that is for inkjet printing for a polyvinyl chloride substrate and that is characterized by containing at least a polyester resin (a) having a weight average molecular weight of no greater than 12,000, a metallic pigment dispersion (b) resulting from dispersing a evaporated aluminum pigment only in an organic solvent, and an organic solvent (c) that has solubility with respect to the polyvinyl chloride substrate.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: July 17, 2018
    Assignee: DAI NIPPON TORYO CO., LTD.
    Inventors: Keita Aoki, Seiji Hamanaka, Hiroki Hayashi, Akira Iwasawa
  • Publication number: 20160244627
    Abstract: A metallic ink composition for inkjet printing for a polyvinyl chloride substrate, can form printed matter having superior mirror gloss and favorable scratch resistance, and is able to prevent nozzle clogging during inkjet printing, and more specifically pertains to a metallic ink composition that is for inkjet printing for a polyvinyl chloride substrate and that is characterized by containing at least a polyester resin (a) having a weight average molecular weight of no greater than 12,000, a metallic pigment dispersion (b) resulting from dispersing a evaporated aluminum pigment only in an organic solvent, and an organic solvent (c) that has solubility with respect to the polyvinyl chloride substrate.
    Type: Application
    Filed: September 30, 2014
    Publication date: August 25, 2016
    Inventors: Keita AOKI, Seiji HAMANAKA, Hiroki HAYASHI, Akira IWASAWA
  • Patent number: 8940823
    Abstract: According to a water-based composition characterized by containing a colorant, water, a wetting agent, an amine compound, a hydroxyl group-containing organic solvent and a urethane resin having a polycarbonate group, there is provided a water-based coating composition being capable of easily controlling the gloss of a coating film applied on an object to be coated, having good storage stability, and being excellent in wetting properties to an object to be coated and continuous discharge stability without causing nozzle clogging.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 27, 2015
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Akira Iwasawa, Takeshi Fujimoto, Yasuhiro Kawai, Seiji Hamanaka
  • Publication number: 20140011928
    Abstract: According to a water-based composition characterized by containing a colorant, water, a wetting agent, an amine compound, a hydroxyl group-containing organic solvent and a urethane resin having a polycarbonate group, there is provided a water-based coating composition being capable of easily controlling the gloss of a coating film applied on an object to be coated, having good storage stability, and being excellent in wetting properties to an object to be coated and continuous discharge stability without causing nozzle clogging.
    Type: Application
    Filed: March 30, 2012
    Publication date: January 9, 2014
    Applicant: DAI NIPPON TORYO CO., LTD.
    Inventors: Akira Iwasawa, Takeshi Fujimoto, Yasuhiro Kawai, Seiji Hamanaka
  • Patent number: 6117555
    Abstract: A water repellent coating composition comprises a fluororesin powder having a specific surface area ranging from 27 to 48 m.sup.2 /g and a molecular weight ranging from 10,000 to 100,000; an acrylic-silicone binder resin; and a solvent. The fluororesin may be preferably at least one resin selected from polytetrafluoroethylene resins, tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer resins, and tetrafluoroethylene/hexafluoropropylene copolymer resins. The coating composition can be used in various fields including constructions, civil engineering, transportation, communication. The coating films and coated articles produced with the water repellent coating composition exhibit excellent water repellency, antisnow- or antiice-sticking properties, and weatherability.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: September 12, 2000
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Susumu Fujimori, Masaya Takahashi, Mamoru Ishitani, Shinji Tsuru, Akira Iwasawa, Fumio Yamamoto, Satoru Kurosawa
  • Patent number: 5119359
    Abstract: A beam of light emitted from a light source and then modulated is focused through a write head onto a surface of a substrate which is coated with a photosensitive material and is rotated at a predetermined constant rotational speed. The write head and the substrate are displaced relatively in the radial direction of the substrate. While an optical axis of the beam of light is displaced in the direction in which the relative displacement speed between the write head and the substrate is decreased or increased, the substrate is exposed in such a way that a locus of a first turn or wind of predetermined tracks or pit arrays is recorded. Thereafter, while the substrate is rotated at the constant rotational speed, during the next rotation of the substrate the projection of the beam of light is interrupted and the optical axis of the beam of light is returned to its initial position.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: June 2, 1992
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Masami Miyagi, Nobuhiro Funakoshi, Akira Iwasawa