Patents by Inventor Takuya Tomoda

Takuya Tomoda 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).

  • Publication number: 20160376439
    Abstract: A polyarylene sulfide resin composition which is excellent in mechanical strength as well as electromagnetic shielding effect, slidability and moist heat resistance. The resin composition comprises (A) 100 parts by weight of a polyarylene sulfide resin (component A) synthesized through a polymerization reaction using an aromatic disulfide-based compound as a polymerization terminator and (B) 10 to 180 parts by weight of carbon fibers (component B), wholly aromatic polyamide fibers (component C) or glass fibers (component D).
    Type: Application
    Filed: January 28, 2015
    Publication date: December 29, 2016
    Applicant: TEIJIN LIMITED
    Inventor: Takuya TOMODA
  • Patent number: 8524824
    Abstract: To provide a resin composition comprising an aromatic polycarbonate resin and having excellent appearance, impact strength, thermal stability, hydrolysis resistance, and flame retardancy. The present invention relates to a resin composition comprising (A) 75 to 99.98 wt % of an aromatic polycarbonate resin (component A), (B) 0.01 to 5 wt % of a mixture of polytetrafluoroethylene particles and an organic polymer (component B) and (C) 0.01 to 20 wt % of a flame retardant (component C), wherein the sodium metal ion content of the component B (excluding sodium metal ion contained in the polytetrafluoroethylene particles) is 10 ppm or less, and molded articles therefrom.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: September 3, 2013
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Takuya Tomoda, Yoshihisa Shinagawa, Shinichi Soda
  • Patent number: 8278377
    Abstract: A resin composition which is excellent in appearance, impact strength, hydrolysis resistance and drip prevention properties. The resin composition comprises (A) 100 parts by weight of an aromatic polycarbonate resin (component A), (B) 0.01 to 6 parts by weight of a polymer mixture (component B) obtained by suspension polymerizing a styrene monomer, a maleic anhydride monomer and an acrylic monomer in the presence of polytetrafluoroethylene particles, and (C) 0.01 to 30 parts by weight of a flame retardant (component C).
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: October 2, 2012
    Assignee: Teijin Chemicals, Ltd.
    Inventor: Takuya Tomoda
  • Patent number: 8110622
    Abstract: A resin composition consisting of: (1) 100 parts by weight of an aromatic polycarbonate resin; (2) 0.008 to 0.13 part by weight of an alkali metal salt of a perfluoroalkylsulfonic acid having a fluoride ion content measured by ion chromatography of 0.2 to 1 ppm in terms of weight based on the weight of component B; and (3) 0.01 to 5 parts by weight of silicone having a Si—H group and a phenyl group. A process of manufacturing the resin composition and a method of preventing the melt dripping during combustion of the resin composition. The flame retardancy of the above aromatic polycarbonate resin composition comprising the fluorine-containing organic metal salt compound is improved.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: February 7, 2012
    Assignee: Teijin Chemicals Ltd.
    Inventors: Yoji Ohira, Tetsushi Ono, Hidekazu Ito, Makoto Takagi, Takuya Tomoda, Hidenori Nakagawa, Mitsuhiro Takeo, Kazuhiko Koya
  • Patent number: 7939591
    Abstract: The present disclosure relates to a resin composition having excellent thermal stability, light reflectivity and color, and, preferably, flame retardancy. The present disclosure also relates to a method for producing a resin composition which comprises mixing 60 to 99.9 parts by weight of polycarbonate resin (component A) with 0.1 to 40 parts by weight of titanium dioxide pigment (component B), wherein component B (i) satisfies 0.05?(b)?(a)?0.6, when weight. reduction at 23 to 100° C. by thermogravimetric analysis (TGA) is (a) wt % and weight reduction at 23 to 300° C. by TGA is (b) wt %, and (ii) satisfies 0.001?(d)/(c)?0.01 and 0.001?(e)/(c)?0.02, when weight percentages derived from Ti, Al and Si elements in X-ray fluorescence analysis are (c) wt %, (d) wt % and (e) wt %, respectively.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: May 10, 2011
    Assignee: Teijin Chemicals, Ltd.
    Inventor: Takuya Tomoda
  • Publication number: 20110077332
    Abstract: A resin composition which is excellent in appearance, impact strength, hydrolysis resistance and drip prevention properties. The resin composition comprises (A) 100 parts by weight of an aromatic polycarbonate resin (component A), (B) 0.01 to 6 parts by weight of a polymer mixture (component B) obtained by suspension polymerizing a styrene monomer, a maleic anhydride monomer and an acrylic monomer in the presence of polytetrafluoroethylene particles, and (C) 0.01 to 30 parts by weight of a flame retardant (component C).
    Type: Application
    Filed: May 26, 2009
    Publication date: March 31, 2011
    Inventor: Takuya Tomoda
  • Publication number: 20100261828
    Abstract: It is an object of the present invention to provide a resin composition which is excellent in flame retardancy and heat resistance and comprises a flame retardant containing no halogen. The present invention is a resin composition comprising 100 parts by weight of an aromatic polycarbonate resin (component A), 0.001 to 8 parts by weight of a flame retardant (component B) and 0.01 to 6 parts by weight of a fluorine-containing dripping inhibitor (component C), wherein the flame retardant (component B) is obtained by introducing a sulfonic acid group and/or a sulfonic acid base into an aromatic polymer in an amount of 0.1 to 2.5 wt % in terms of sulfur.
    Type: Application
    Filed: November 6, 2008
    Publication date: October 14, 2010
    Inventors: Takuya Tomoda, Yasuhito Inagaki
  • Publication number: 20100113660
    Abstract: To provide a resin composition comprising an aromatic polycarbonate resin and having excellent appearance, impact strength, thermal stability, hydrolysis resistance, and flame retardancy. The present invention relates to a resin composition comprising (A) 75 to 99.98 wt % of an aromatic polycarbonate resin (component A), (B) 0.01 to 5 wt % of a mixture of polytetrafluoroethylene particles and an organic polymer (component B) and (C) 0.01 to 20 wt % of a flame retardant (component C), wherein the sodium metal ion content of the component B (excluding sodium metal ion contained in the polytetrafluoroethylene particles) is 10 ppm or less, and molded articles therefrom.
    Type: Application
    Filed: July 30, 2007
    Publication date: May 6, 2010
    Inventors: Takuya Tomoda, Yoshihisa Shinagawa, Shinichi Soda
  • Publication number: 20090118406
    Abstract: There is provided a resin composition that is excellent in thermal stability, light reflectivity and color, and preferably in flame retardancy. There is also provided a method for producing a resin composition which comprises mixing 60 to 99.9 parts by weight of polycarbonate resin (component A) with 0.1 to 40 parts by weight of titanium dioxide pigment (component B), the component B (i) satisfying 0.05?(b)?(a)?0.6, when weight reduction at 23 to 100° C. by thermogravimetric analysis (TGA) is (a) wt % and weight reduction at 23 to 300° C. by TGA is (b) wt %, and (ii) satisfying 0.001?(d)/(c)?0.01 and 0.001?(e)/(c)?0.02, when weight percentages derived from Ti, Al and Si elements in X-ray fluorescence analysis are (c) wt %, (d) wt % and (e) wt %, respectively.
    Type: Application
    Filed: May 18, 2006
    Publication date: May 7, 2009
    Inventor: Takuya Tomoda
  • Publication number: 20070299169
    Abstract: A resin composition comprising: (1) 100 parts by weight of an aromatic polycarbonate resin (component A); (2) 0.005 to 0.6 part by weight of a fluorine-containing organic metal salt having a fluoride ion content measured by ion chromatography of 0.2 to 20 ppm in terms of weight (component B); and (3) at least one component selected from the group consisting of a flame retardant (component C), a fatty acid ester (component D), an ultraviolet light absorber (component E), polytetrafluoroethylene having fibril formability (component F), a filler (component G), a silicate mineral (component H) and a titanium dioxide pigment (component I). A process of manufacturing the resin compositon and a method of preventing the melt dripping during combustion of the resin composition. The flame retardancy of the above aromatic polycarbonate resin composition comprising the fluorine-containing organic metal salt compound is improved.
    Type: Application
    Filed: April 6, 2005
    Publication date: December 27, 2007
    Inventors: Yoji Ohira, Tetsushi Ono, Hidekazu Ito, Makoto Takagi, Takuya Tomoda, Hidenori Nakagawa, Mitsuhiro Takeo, Kazuhiko Koya