Patents by Inventor Tetsuji Ohta

Tetsuji Ohta 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).

  • Publication number: 20150152269
    Abstract: Provided is an antifog sheet such that a coated film does not become whitened and the adhesive property of the coated film is not decreased by whitening of the coated film while maintaining antifog property even when the coated film is irradiated with ultraviolet light under high humidity environment and when coated film is in wet state. The antifog sheet of the present invention includes a first layer and a second layer successively layered on a base material. The first layer includes a heat treated product of a first coating composition including a water absorbing resin. The second layer includes a second coating composition including a polyol and a benzotriazole-based ultraviolet light absorber. The amount of the benzotriazole-based ultraviolet light absorber used in the second coating composition is 1.5 to 8 wt % in solid content equivalent.
    Type: Application
    Filed: May 28, 2013
    Publication date: June 4, 2015
    Inventors: Masahiro Harada, Tetsuji Ohta
  • Patent number: 8734958
    Abstract: A material for forming electroless plate shows favorable catalyst adhering property, and shows no delamination of catalyst adhering layer from non-conductive base material, no dissolution of catalyst adhering layer into a plating solution, and no discoloration of interface of plate layer with catalyst adhering layer during the catalyst adhering step, development step and other steps. The material includes a non-conductive base material and a catalyst adhering layer, provided on the non-conductive base and including a water-insoluble polyester resin The catalyst adhering layer shows a contact angle of 60° or smaller to purified water.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: May 27, 2014
    Assignees: Kimoto Co., Ltd., Kanto Gakuin University Surface Engineering Research Institute
    Inventors: Tetsuji Ohta, Keiko Kitamura, Mitsuhiro Watanabe
  • Patent number: 8389123
    Abstract: A material for forming electroless plate comprising a non-conductive base material and a catalyst adhering layer provided on the non-conductive base material is constituted so that the catalyst adhering layer should comprise a hydrophilic (meth)acrylic resin constituted with a hydrophilic monomer and a hydrophobic monomer and containing the hydrophobic monomer at a ratio of 50 to 90 mol %. This material for forming electroless plate shows favorable catalyst adhering property, and shows no delamination of the catalyst adhering layer from the non-conductive base material, no dissolution of the catalyst adhering layer into a plating solution, and no discoloration of plate layer during the catalyst adhering step, development step and other steps.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: March 5, 2013
    Assignees: Kimoto Co., Ltd., Japan Surface Treatment Institute Co., Ltd.
    Inventors: Tetsuji Ohta, Keiko Kitamura, Mitsuhiro Watanabe
  • Patent number: 8206828
    Abstract: A material for electroless plating shows good adhesion for a catalyst and does not cause delamination of a catalyst adhering layer from a non-conductive base material in a catalyst adhering step, development step or other step. In a material for electroless plating, having a catalyst adhering layer on a non-conductive base material, the catalyst adhering layer is formed from a hydrophilic and/or water-soluble resin containing hydroxyl group, and a curable layer formed from a resin having hydroxyl group and an isocyanate type compound is provided between the base material and the catalyst adhering layer. The catalyst adhering layer is preferably formed while isocyanate groups of the isocyanate type compound in the curable layer remain.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: June 26, 2012
    Assignees: Kimoto Co., Ltd., Japan Surface Treatment Institute Co., Ltd.
    Inventors: Tetsuji Ohta, Mitsuhiro Watanabe
  • Publication number: 20110005936
    Abstract: There is provided a material for forming electroless plate which shows favorable catalyst adhering property, and shows no delamination of catalyst adhering layer from non-conductive base material, no dissolution of catalyst adhering layer into a plating solution, and no discoloration of interface of plate layer with catalyst adhering layer during the catalyst adhering step, development step and other steps. A material for forming electroless plate comprising a non-conductive base material and a catalyst adhering layer provided on the non-conductive base material is constituted so that the catalyst adhering layer should comprise a water-insoluble polyester resin, and surface of the catalyst adhering layer should show a contact angle of 60° or smaller to purified water.
    Type: Application
    Filed: February 1, 2008
    Publication date: January 13, 2011
    Applicants: Kimoto Co., Ltd., Kanto Gakuin University Surface Engineering Research Institute
    Inventors: Tetsuji Ohta, Keiko Kitamura, Mitsuhiro Watanabe
  • Publication number: 20100108528
    Abstract: A material for forming electroless plate comprising a non-conductive base material and a catalyst adhering layer provided on the non-conductive base material is constituted so that the catalyst adhering layer should comprise a hydrophilic (meth)acrylic resin constituted with a hydrophilic monomer and a hydrophobic monomer and containing the hydrophobic monomer at a ratio of 50 to 90 mol %. This material for forming electroless plate shows favorable catalyst adhering property, and shows no delamination of the catalyst adhering layer from the non-conductive base material, no dissolution of the catalyst adhering layer into a plating solution, and no discoloration of plate layer during the catalyst adhering step, development step and other steps.
    Type: Application
    Filed: February 1, 2008
    Publication date: May 6, 2010
    Applicant: Kanto Gakuin University Surface Engineering Research Institute
    Inventors: Tetsuji Ohta, Keiko Kitamura, Mitsuhiro Watanabe
  • Publication number: 20100016147
    Abstract: A material for forming electroless plate shows favorable catalyst adhering property, and shows no delamination of catalyst adhering layer from non-conductive base material, no dissolution of catalyst adhering layer into a plating solution, and no discoloration of interface of plate layer with catalyst adhering layer during the catalyst adhering step, development step and other steps. The material includes a non-conductive base material and a catalyst adhering layer, provided on the non-conductive base and including a water-insoluble polyester resin The catalyst adhering layer shows a contact angle of 60° or smaller to purified water.
    Type: Application
    Filed: February 1, 2008
    Publication date: January 21, 2010
    Applicant: KIMOTO Co, LTD.
    Inventors: Tetsuji Ohta, Keiko Kitamura, Mitsuhiro Watanabe
  • Publication number: 20090075089
    Abstract: A material for electroless plating shows good adhesion for a catalyst and does not cause delamination of a catalyst adhering layer from a non-conductive base material in a catalyst adhering step, development step or other step. In a material for electroless plating, having a catalyst adhering layer on a non-conductive base material, the catalyst adhering layer is formed from a hydrophilic and/or water-soluble resin containing hydroxyl group, and a curable layer formed from a resin having hydroxyl group and an isocyanate type compound is provided between the base material and the catalyst adhering layer. The catalyst adhering layer is preferably formed while isocyanate groups of the isocyanate type compound in the curable layer remain.
    Type: Application
    Filed: March 12, 2007
    Publication date: March 19, 2009
    Inventors: Tetsuji Ohta, Mitsuhiro Watanabe
  • Publication number: 20090035559
    Abstract: A material for forming electroless plate comprising a non-conductive substrate and a catalyst adhering layer provided on the substrate is constituted so that the catalyst adhering layer contains a hydrophilic ionizing radiation curable resin composition, a surface of the catalyst adhering layer shows a contact angle of 60° or smaller to purified water, and preferably the hydrophilic ionizing radiation curable resin composition is in a half-cured state for the portion of the catalyst adhering layer. A material for forming electroless plate shows favorable adhesion for catalyst, and the catalyst adhering layer hardly dissolves into a plating solution in the step of adhering catalyst, the step of development and other steps.
    Type: Application
    Filed: May 15, 2008
    Publication date: February 5, 2009
    Applicant: KIMOTO CO., LTD.
    Inventors: Keiko Kitamura, Takashi Shimizu, Tetsuji Ohta, Masayuki Nakatani
  • Publication number: 20050036220
    Abstract: An indicator panel for a vehicle instrument panel is provided with a base substrate having transparency, an ink-acceptance layer coated on at least one surface of the base substrate and a shading layer coated further on the ink-acceptance layer. Hazes of the base substrate and the ink-acceptance layer are more than 92.8% and less than 93.5%.
    Type: Application
    Filed: March 19, 2004
    Publication date: February 17, 2005
    Inventors: Tetsuto Miyanishi, Tetsuji Ohta
  • Patent number: 6856478
    Abstract: An indicator panel for a vehicle instrument panel is provided with a base substrate having transparency, an ink-acceptance layer coated on at least one surface of the base substrate and a shading layer coated further on the ink-acceptance layer. Hazes of the base substrate and the ink-acceptance layer are more than 92.8% and less than 93.5%.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: February 15, 2005
    Assignees: Calsonic Kansei Corporation, Kimoto Co., Ltd.
    Inventors: Tetsuto Miyanishi, Tetsuji Ohta
  • Publication number: 20040228986
    Abstract: An interior ornament for a vehicle is provided with a base substrate; an ink-acceptance layer coated on at least one surface of the base substrate and a printed layer printed on the ink-acceptance layer. The ink-acceptance layer includes from 7 weight % to 15 weight % of one or more benzotriazole series compounds.
    Type: Application
    Filed: March 23, 2004
    Publication date: November 18, 2004
    Inventors: Tetsuto Miyanishi, Tetsuji Ohta
  • Patent number: 6592970
    Abstract: An ink jet recording material excellent in all characteristics including drying property, ink absorbency, water resistance and the like, is provided. The ink jet recording material has an ink-receiving layer comprising hydrophilic resin and inorganic pigment, the ink-receiving layer containing silica particles surface-doped with alumina as the inorganic pigment. The alumina-doped silica is prepared by a process employing flame hydrolysis techniques combined with pyrolysis. The ink-receiving layer preferably contains the alumina-doped silica in an amount ranging from 5 to 200 weight parts based on 100 weight parts of the hydrophilic resin.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: July 15, 2003
    Assignees: Kimoto Co., Ltd., Degussa AG
    Inventors: Tetsuji Ohta, Mitsuru Ochiai, Helmut Mangold
  • Publication number: 20020155256
    Abstract: An ink jet recording material excellent in all characteristics including drying property, ink absorbency, water resistance and the like, is provided. The ink jet recording material has an ink-receiving layer comprising hydrophilic resin and inorganic pigment, the ink-receiving layer containing silica particles surface-doped with alumina as the inorganic pigment. The alumina-doped silica is prepared by a process employing flame hydrolysis techniques combined with pyrolysis. The ink-receiving layer preferably contains the alumina-doped silica in an amount ranging from 5 to 200 weight parts based on 100 weight parts of the hydrophilic resin.
    Type: Application
    Filed: October 13, 1999
    Publication date: October 24, 2002
    Inventors: TETSUJI OHTA, MITSURU OCHIAI, HELMUT MANGOLD