Patents by Inventor Kenji Yamabe

Kenji Yamabe 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).

  • PRODUCTION METHOD OF POLYTETRAFLUOROETHYLENE POWDER AND POLYTETRAFLUOROETHYLENE POWDER
    Publication number: 20240150505
    Abstract: A method for producing a polytetrafluoroethylene powder, which includes subjecting tetrafluoroethylene to suspension polymerization in an aqueous medium to prepare a suspension-polymerized particle of non melt-processible polytetrafluoroethylene, drying the suspension-polymerized particle to prepare a dry particle, subjecting the dry particle to fluorine radical treatment to prepare a fluorine radical-treated particle, and crushing the fluorine radical-treated particle to produce a polytetrafluoroethylene powder. Also disclosed is a polytetrafluoroethylene formed article obtained by forming the polytetrafluoroethylene powder, as well as a polytetrafluoroethylene compression-molded article obtained by compression molding the polytetrafluoroethylene powder.
    Type: Application
    Filed: December 27, 2023
    Publication date: May 9, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro TAIRA, Kazuhiro Mishima, Takayuki Tanaka, Takeki Kusunoki, Masayoshi Miyamoto, Tomoki Minamiyama, Mitsuo Tsukamoto, Kenji Ichikawa, Takuya Yamabe, Hirotoshi Yoshida, Taketo Kato, Taku Yamanaka
  • Pigment composition
    Patent number: 8894763
    Abstract: The present invention relates to a pigment composition containing a pigment and chondroitin sulfate or its salt, in which a content of chondroitin sulfate or its salt is equal to or larger than 0.1 part by weight (pbw) over 1 pbw of the pigment, and such pigment composition is available in the use for drug medicines and the like, and exhibits better dispersibility.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: November 25, 2014
    Assignee: Taisho Pharmaceutical Co., Ltd
    Inventors: Toshiki Nakajima, Masakiyo Urabe, Mariko Numao, Hiroki Tada, Kenji Yamabe
  • PIGMENT COMPOSITION
    Publication number: 20130008343
    Abstract: The present invention relates to a pigment composition containing a pigment and chondroitin sulfate or its salt, in which a content of chondroitin sulfate or its salt is equal to or larger than 0.1 part by weight (pbw) over 1 pbw of the pigment, and such pigment composition is available in the use for drug medicines and the like, and exhibits better dispersibility.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 10, 2013
    Applicant: TAISHO PHARMACEUTICAL CO., LTD
    Inventors: Toshiki Nakajima, Masakiyo Urabe, Mariko Numao, Hiroki Tada, Kenji Yamabe
  • PIGMENT COMPOSITION
    Publication number: 20130005874
    Abstract: The present invention relates to a pigment composition containing a) a pigment, and b) a polyvinyl alcohol/acrylic acid/methyl methacrylate copolymer or an aminoalkyl methacrylate copolymer, and such pigment composition is available in the use for drug medicines and the like, and exhibits better dispersibility.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 3, 2013
    Applicant: TAISHO PHARMACEUTICAL CO., LTD
    Inventors: Toshiki Nakajima, Masakiyo Urabe, Mariko Numao, Masatoshi Ikeda, Kenji Yamabe