Patents by Inventor Sumire Kubota

Sumire Kubota 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).

  • FLAME-RETARDANT POLYESTER COPOLYMER
    Publication number: 20120322968
    Abstract: The invention provides a production process of a flame-retardant polyester copolymer, having a first step of adding a catalyst to a 2,5-furan dicarboxylic acid compound, an aliphatic or alicyclic diol, itaconic acid and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to obtain an oligomer, and a second step of adding a catalyst to the oligomer obtained in the first step to conduct polycondensation, thereby obtaining the flame-retardant polyester copolymer.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsuhiro Matsuda, Kenji Ito, Sumire Kubota, Atsushi Fuseya, Hiroshi Shinagawa
  • Flame retardant resin composition and molded article thereof
    Patent number: 7985788
    Abstract: The invention provides a flame retardant resin composition containing a polyalkylene furan dicarboxylate represented by the following formula (1), an aromatic polycarbonate, a phosphazene compound represented by the following formula (2) and a fluorine-containing compound: wherein m and n1 are each an integer of 2 or more; wherein n2 is an integer of 2 or more, and R1 and R2 are each an alkyl group having 1 to 20 carbon atoms or an aryl group.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: July 26, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Shinagawa, Sumire Kubota, Atsushi Fuseya, Katsuhiro Matsuda, Kenji Ito
  • FLAME RETARDANT RESIN COMPOSITION AND MOLDED ARTICLE THEREOF
    Publication number: 20110130498
    Abstract: The invention provides a flame retardant resin composition containing a polyalkylene furan dicarboxylate represented by the following formula (1), an aromatic polycarbonate, a phosphazene compound represented by the following formula (2) and a fluorine-containing compound: wherein m and n1 are each an integer of 2 or more; wherein n2 is an integer of 2 or more, and R1 and R2 are each an alkyl group having 1 to 20 carbon atoms or an aryl group.
    Type: Application
    Filed: November 1, 2010
    Publication date: June 2, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Shinagawa, Sumire Kubota, Atsushi Fuseya, Katsuhiro Matsuda, Kenji Ito
  • FLAME-RETARDANT POLYESTER COPOLYMER, AND PRODUCTION PROCESS AND MOLDED ARTICLE THEREOF
    Publication number: 20110124839
    Abstract: The invention provides a production process of a flame-retardant polyester copolymer, having a first step of adding a catalyst to a 2,5-furan dicarboxylic acid compound, an aliphatic or alicyclic diol, itaconic acid and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to obtain an oligomer, and a second step of adding a catalyst to the oligomer obtained in the first step to conduct polycondensation, thereby obtaining the flame-retardant polyester copolymer.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 26, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsuhiro Matsuda, Kenji Ito, Sumire Kubota, Atsushi Fuseya, Hiroshi Shinagawa
  • Release agent composition for plastic mold and component using the same
    Publication number: 20060172901
    Abstract: There is provided a novel nonflammable release agent composition for a plastic mold containing: (a) a hydrofluoroether; (b) fluorine oil; and (c) a fluorine-based surfactant, in which the content of the ingredient (a) is 50 wt % or more. The composition is lowly toxic, noncombustible, and more chemically stable than a conventional one, and brings together high persistence of releasability and sufficient durability.
    Type: Application
    Filed: December 28, 2005
    Publication date: August 3, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Sumire Kubota, Hirohide Matsuhisa
  • Multilayer injection compression molding method using recycled material, and molded product molded through the same
    Publication number: 20060099424
    Abstract: There is provided a multilayer molding method using an unused thermoplastic resin material and a recycled thermoplastic resin material, including molding at least one layer through an injection compression molding method. The multilayer molding method allows improvement in use rate of the recycled thermoplastic resin material with favorable appearance and sufficient mechanical strength maintained in reuse of the recycled thermoplastic resin into a product.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 11, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Isao Hagiwara, Hirohide Matsuhisa, Shinichi Miyauchi, Sumire Kubota, Daishi Saiki