Patents by Inventor Katsumi Kihara

Katsumi Kihara 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).

  • Polyurethane and manufacturing method therefor, master batch, ink binder, ink composition, thermoplastic polymer composition for molding, molded body, and composite molded body and manufacturing method therefor
    Patent number: 8691921
    Abstract: The present invention provides a polyurethane which is non-sticky, exhibits superior handling properties and superior moldability, and has superior adhesive properties with silicones even if a surface activation treatment is not carried out beforehand. The polyurethane of the present invention contains polyol units and organic polyisocyanate units. The polyol units contain an alkenyl group-containing organopolysiloxane structure in an amount ranging from 0.01 to 20% by weight with respect to the weight of the aforementioned polyurethane.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 8, 2014
    Assignee: Dow Corning Toray Co., Ltd.
    Inventors: Takayoshi Otomo, Yuichi Tsuji, Katsumi Kihara, Hidekazu Saito, Yoshihiro Yamana, Kazumasa Hattori
  • POLYURETHANE AND MANUFACTURING METHOD THEREFOR, MASTER BATCH, INK BINDER, INK COMPOSITION, THERMOPLASTIC POLYMER COMPOSITION FOR MOLDING, MOLDED BODY, AND COMPOUND MOLDED BODY AND MANUFACTURING METHOD THEREFOR
    Publication number: 20120041141
    Abstract: The present invention provides a polyurethane which is non-sticky, exhibits superior handling properties and superior moldability, and has superior adhesive properties with silicones even if a surface activation treatment is not carried out beforehand. The polyurethane of the present invention contains polyol units and organic polyisocyanate units. The polyol units contain an alkenyl group-containing organopolysiloxane structure in an amount ranging from 0.01 to 20% by weight with respect to the weight of the aforementioned polyurethane.
    Type: Application
    Filed: April 30, 2010
    Publication date: February 16, 2012
    Inventors: Takayoshi Otomo, Yuichi Tsuji, Katsumi Kihara, Hidekazu Saito, Yoshihiro Yamana, Kazumasa Hattori
  • Composite material comprising flourine-containing rubber, fuel-impermeable sealing material comprising same, and process for preparing composite material
    Patent number: 8071709
    Abstract: The present invention provides a novel fluorine-containing rubber composite material having both of excellent fuel impermeability and excellent cold resistance, a fuel impermeable sealing material comprising the composite material and a process for preparing the composite material. The fluorine-containing rubber composite material comprises crosslinked particles of fluorine-containing silicone rubber dispersed in a fluorine-containing rubber. It is preferable that the fluorine-containing rubber comprises a vinylidene fluoride/tetrafluoroethylene/perfluoro vinyl ether copolymer, and the composite material has cold resistance of not more than ?35° C. and fuel permeability of not more than 500 g·mm/m2·day. The fuel impermeable sealing material comprises the composite material. The process for preparing the composite material comprises a step for co-coagulation of a fluorine-containing rubber emulsion and an emulsion of crosslinked fluorine-containing silicone rubber.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: December 6, 2011
    Assignees: Daikin Industries, Ltd., Dow Corning Corporation
    Inventors: Mitsuru Kishine, Hirofumi Nishibayashi, Toshiki Ichisaka, Kazuo Kobayashi, Ryuji Tachibana, Tadashi Okawa, Katsumi Kihara
  • Composite Material Comprising Flourine-Containing Rubber, Fuel-Impermeable Sealing Material Comprising Same, and Process for Preparing Composite Material
    Publication number: 20090076224
    Abstract: The present invention provides a novel fluorine-containing rubber composite material having both of excellent fuel impermeability and excellent cold resistance, a fuel impermeable sealing material comprising the composite material and a process for preparing the composite material. The fluorine-containing rubber composite material comprises crosslinked particles of fluorine-containing silicone rubber dispersed in a fluorine-containing rubber. It is preferable that the fluorine-containing rubber comprises a vinylidene fluoride/tetrafluoroethylene/perfluoro vinyl ether copolymer, and the composite material has cold resistance of not more than ?35° C. and fuel permeability of not more than 500 g·mm/m2·day. The fuel impermeable sealing material comprises the composite material. The process for preparing the composite material comprises a step for co-coagulation of a fluorine-containing rubber emulsion and an emulsion of crosslinked fluorine-containing silicone rubber.
    Type: Application
    Filed: March 14, 2007
    Publication date: March 19, 2009
    Applicants: DAIKIN INDUSTRIES, LTD., DOW CORNING CORPORATION
    Inventors: Mitsuru Kishine, Hirofumi Nishibayashi, Toshiki Ichisaka, Kazuo Kobayashi, Ryuji Tachibana, Tadashi Okawa, Katsumi Kihara