Patents by Inventor Chuji Kitagawa

Chuji Kitagawa 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).

  • Biomass resin composition, process for preparing the same and molding material using the biomass composition
    Patent number: 7276591
    Abstract: The present invention relates to biomass resin composition comprising a phenolized biomass substance and a reactive substance having a melting point of at most 100° C. other than phenol. The biomass resin composition is prepared by a process, which comprises adding a reactive substance such as a phenol derivative or drying oil into the reaction system, in the step of preparing a phenolized biomass substance by phenolizing a biomass substance with a phenol in the presence of an acid catalyst. The present invention provides a biomass resin composition, in which the melting point can be freely controlled and which is excellent in properties such as flowability, processability, water resistance and impact resistance and can be prepared by a simple process, and a process for preparing the same.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: October 2, 2007
    Assignee: Fuji Carbon Co., Ltd.
    Inventors: Yaoguang Yao, Chuji Kitagawa, Motonobu Fujimori, Kaoru Fujimori
  • Woody resin for molding in-vehicle component parts, process for producing the same, woody resinous material for molding in-vehicle component parts and in-vehicle component parts molded from the same
    Publication number: 20070015854
    Abstract: A woody resin is for molding in-vehicle component parts, is produced by a co-condensation reaction of a woody material and phenols, and includes the woody material exhibiting a dehydration ratio of from 27 to 42% by weight by the co-condensation reaction, and the phenols bonded to the woody material in an amount of from 150 to 240 parts by weight with respect to 100 parts by weight of the woody material. The woody resin is compounded with a curing agent and a filler to make a woody resinous material for molding in-vehicle component parts.
    Type: Application
    Filed: September 14, 2006
    Publication date: January 18, 2007
    Inventors: Toshihisa Shimo, Hidetaka Hayashi, Yaoguang Yao, Chuji Kitagawa
  • Biomass resin composition, process for preparing the same and molding material using the biomass composition
    Publication number: 20050027043
    Abstract: The present invention relates to biomass resin composition comprising a phenolized biomass substance and a reactive substance having a melting point of at most 100° C. other than phenol. The biomass resin composition is prepared by a process, which comprises adding a reactive substance such as a phenol derivative or drying oil into the reaction system, in the step of preparing a phenolized biomass substance by phenolizing a biomass substance with a phenol in the presence of an acid catalyst. The present invention provides a biomass resin composition, in which the melting point can be freely controlled and which is excellent in properties such as flowability, processability, water resistance and impact resistance and can be prepared by a simple process, and a process for preparing the same.
    Type: Application
    Filed: March 24, 2004
    Publication date: February 3, 2005
    Inventors: Yaoguang Yao, Chuji Kitagawa, Motonobu Fujimori, Kaoru Fujimori
  • Woody resin for molding in-vehicle component parts, process for producing the same, woody resinous material for molding in-vehicle component parts and in-vehicle component parts molded from the same
    Publication number: 20050020794
    Abstract: A woody resin is for molding in-vehicle component parts, is produced by a co-condensation reaction of a woody material and phenols, and includes the woody material exhibiting a dehydration ratio of from 27 to 42% by weight by the co-condensation reaction, and the phenols bonded to the woody material in an amount of from 150 to 240 parts by weight with respect to 100 parts by weight of the woody material. The woody resin is compounded with a curing agent and a filler to make a woody resinous material for molding in-vehicle component parts.
    Type: Application
    Filed: July 23, 2004
    Publication date: January 27, 2005
    Inventors: Toshihisa Shimo, Hidetaka Hayashi, Yaoguang Yao, Chuji Kitagawa