Patents by Inventor Shoukichi Nakamura

Shoukichi Nakamura 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).

  • Filler composition, filler, and method for manufacturing filler
    Patent number: 10836911
    Abstract: In order to provide a filler composition for fabricating a high-performance filler achieving good productivity while preventing worsening of a working environment and production of a VOC and to provide a filler and a method for producing the filler, a filler composition of the present invention contains wet silica, a polyoxyethylene unsaturated fatty acid ester, and a sulfur-containing silane coupling agent.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 17, 2020
    Assignees: Dai-Ichi Kogyo Seiyaku Co., Ltd., Osaka Soda Co., Ltd.
    Inventors: Toshio Kagimasa, Nahoko Izaki, Shoukichi Nakamura, Tomoyuki Ichino, Ryota Fukitani
  • FILLER COMPOSITION, FILLER, AND METHOD FOR MANUFACTURING FILLER
    Publication number: 20170158861
    Abstract: In order to provide a filler composition for fabricating a high-performance filler achieving good productivity while preventing worsening of a working environment and production of a VOC and to provide a filler and a method for producing the filler, a filler composition of the present invention contains wet silica, a polyoxyethylene unsaturated fatty acid ester, and a sulfur-containing silane coupling agent.
    Type: Application
    Filed: June 26, 2015
    Publication date: June 8, 2017
    Inventors: Toshio Kagimasa, Nahoko Izaki, Shoukichi Nakamura, Tomoyuki Ichino, Ryota Fukitani
  • Hologram recording material composition and hologram recording medium
    Publication number: 20030096172
    Abstract: A hologram recording material composition is disclosed, comprising (A) an allyl-based prepolymer having at least one allyl group in a molecule thereof, (B) a (meth)acrylate-based compound having at least one polymerizable unsaturated group in a molecule thereof, and (C) a photo-polymerization initiator, wherein a difference between a refractive index of said allyl-based prepolymer (A) and a refractive index of a polymer of said (meth)acrylate compound (B) is 0.005 or more.
    Type: Application
    Filed: October 12, 2001
    Publication date: May 22, 2003
    Inventors: Taichi Ichihashi, Hideo Tanigawa, Yutaka Kamada, Shoukichi Nakamura, Takashi Matsuo, Akira Hashimoto, Takahiro Sakashita, Kazunori Yokoyama