Patents by Inventor Kei Takigawa

Kei Takigawa 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: 20240091998
    Abstract: Provided is an after-cure type laminated film having a low reflectance. A laminated film comprising: a transparent support substrate, an uncured hard coat layer formed on at least one surface of the transparent support substrate, and an uncured optical interference layer formed on the uncured hard coat layer, wherein the uncured hard coat layer comprises an active energy ray-curable composition for forming a hard coat layer, the uncured optical interference layer comprises an active energy ray-curable composition for forming an optical interference layer, the transparent support substrate has a thickness of 50 ?m or more and 600 ?m or less, a stretch ratio of the laminated film at 160° C. is 50% or more, and the laminated film heat-treated at a temperature of 90° C. for 30 minutes has a minimum value RAH of a reflectance taken between wavelengths of 380 nm and 780 nm of 2% or less and measured from a side of the uncured optical interference layer.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 21, 2024
    Applicant: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.
    Inventors: Jumpei TAKAHASHI, Takuma OKADA, Kei TAKIGAWA, Kazuhito KOBAYASHI, Takeki HOSOKAWA, Takamitsu WATANABE
  • Patent number: 11760076
    Abstract: Provided is a method for manufacturing a laminated film that can be molded into a complicated shape.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: September 19, 2023
    Assignee: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.
    Inventors: Takuma Okada, Takamitsu Watanabe, Takeki Hosokawa, Kei Takigawa, Kazuhito Kobayashi
  • Publication number: 20220299681
    Abstract: Provided is a laminated film that can be molded into a complicated shape. A laminated film comprising a transparent support substrate; an uncured hard coat layer formed on at least one surface of the transparent support substrate; and an uncured optical interference layer formed on the uncured hard coat layer, wherein the uncured hard coat layer comprises an active energy ray-curable composition for forming a hard coat layer, the uncured optical interference layer comprises an active energy ray-curable composition for forming a optical interference layer, a thickness of the transparent support substrate is 50 ?m or more and 600 ?m or less, a luminous reflectance including regular reflected light measured from an uncured optical interference layer side is 0.1% or more and 4.0% or less, and a stretch ratio at 160° C. is 50% or more.
    Type: Application
    Filed: July 22, 2020
    Publication date: September 22, 2022
    Applicant: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.
    Inventors: Takuma OKADA, Takamitsu WATANABE, Takeki HOSOKAWA, Kei TAKIGAWA, Kazuhito KOBAYASHI
  • Publication number: 20220288914
    Abstract: Provided is a method for manufacturing a laminated film that can be molded into a complicated shape.
    Type: Application
    Filed: July 22, 2020
    Publication date: September 15, 2022
    Applicant: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.
    Inventors: Takuma OKADA, Takamitsu WATANABE, Takeki HOSOKAWA, Kei TAKIGAWA, Kazuhito KOBAYASHI
  • Publication number: 20220032587
    Abstract: An object of the present invention is to provide a laminated member for decoration that can be molded into a complicated shape and has a superior hardcoating property.
    Type: Application
    Filed: December 5, 2019
    Publication date: February 3, 2022
    Applicant: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD.
    Inventors: Takamitsu WATANABE, Takeki HOSOKAWA, Yusuke NAKATA, Keigo KITAMOTO, Satoshi HIROSE, Kei TAKIGAWA, Kazuhito KOBAYASHI
  • Patent number: 8399076
    Abstract: An ink jet recording medium having an ink receiving layer containing a binder which containing an acrylonitrile butadiene type copolymer, the butadiene concentration of the copolymer is 50 weight % or more, and an inorganic pigment on one or two sides of a base paper mainly composed of wood pulp, wherein the concentration ratio of the acrylonitrile butadiene type copolymer to 100 parts by weight of the inorganic pigment is from one part by weight to eight parts by weight, while 60 weight % or more of the inorganic pigment is kaolin with particles of 0.4 ?m or more and below 4.2 ?m which account for 64% or more as the cumulative value of the volumetric basis when measured using a laser diffraction method, and the surface roughness of the ink receiving layer is from 0.6 ?m to 1.4 ?m when a hard backing is used at a clamp pressure of 1,000 kPa according to JIS P8151.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 19, 2013
    Assignees: Nippon Paper Industries Co., Ltd., Ricoh Company, Ltd.
    Inventors: Taichi Watanabe, Yuji Sawa, Kei Takigawa, Naoya Morohoshi, Kiyofumi Nagai
  • Publication number: 20110111144
    Abstract: An inkjet recording medium comprising an ink receiving layer formed by applying a coating layer containing a pigment and a binder to at least one side of a support having air permeability, and applying a coagulation solution for coagulating the binder on a surface of the coating layer by a coagulation cast coating method, wherein a boron compound, a cationic resin and cationic colloidal silica contained in the coagulation solution exist on the surface of the ink receiving layer.
    Type: Application
    Filed: March 25, 2009
    Publication date: May 12, 2011
    Inventors: Masafumi Wasai, Takayuki Sato, Masaya Tosaka, Kei Takigawa
  • Publication number: 20100291323
    Abstract: An inkjet recording medium comprising an ink-receiving layer containing a pigment and a binder formed on at least one side of a base paper containing calcium carbonate as a filler and pulp by a cast coating method, wherein the ash content of the calcium carbonate in the base paper is 15-30% by mass, and the ink-receiving layer contains colloidal silica as the pigment having a primary particle diameter of 30-70 nm and a ratio of the secondary particle diameter to the primary particle diameter of 1.5-3.0.
    Type: Application
    Filed: September 29, 2008
    Publication date: November 18, 2010
    Inventors: Masafumi Wasai, Masaya Tosaka, Hiroshi Koyamoto, Kei Takigawa, Takayuki Sato, Atsushi Ono, Yoshio Yoshida
  • Publication number: 20100277541
    Abstract: An ink jet recording medium having an ink receiving layer containing a binder which containing an acrylonitrile butadiene type copolymer, the butadiene concentration of the copolymer is 50 weight % or more, and an inorganic pigment on one or two sides of a base paper mainly composed of wood pulp, wherein the concentration ratio of the acrylonitrile butadiene type copolymer to 100 parts by weight of the inorganic pigment is from one part by weight to eight parts by weight, while 60 weight % or more of the inorganic pigment is kaolin with particles of 0.4 ?m or more and below 4.2 ?m which account for 64% or more as the cumulative value of the volumetric basis when measured using a laser diffraction method, and the surface roughness of the ink receiving layer is from 0.6 ?m to 1.4 ?m when a hard backing is used at a clamp pressure of 1,000 kPa according to JIS P8151.
    Type: Application
    Filed: October 30, 2008
    Publication date: November 4, 2010
    Applicants: NIPPON PAPER INDUSTRIES CO., LTD., RICOH COMPANY, LTD.
    Inventors: Taichi Watanabe, Yuji Sawa, Kei Takigawa, Naoya Morohoshi, Kiyofumi Nagai