Patents by Inventor Shintaro Komatsu

Shintaro Komatsu 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).

  • Patent number: 11306252
    Abstract: A liquid crystal polyester resin composition including a liquid crystal polyester resin, 15 parts by mass or more and 100 parts by mass or less of a carbon fiber with respect to 100 parts by mass of the liquid crystal polyester resin, and 0.001 parts by mass or more and 0.02 parts by mass or less of a fullerene with respect to 100 parts by mass of the carbon fiber.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: April 19, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Shintaro Komatsu
  • Patent number: 11098173
    Abstract: The present invention relates to a prepreg which contains an oriented liquid crystal polymer and a base that uses a continuous carbon fiber bundle as a forming material. The liquid crystal polymer is a thermotropic liquid crystal polymer and the base is included in an amount of at least 25 parts by mass but not more than 550 parts by mass per 100 parts by mass of the liquid crystal polymer.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: August 24, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Shintaro Komatsu
  • Publication number: 20200299582
    Abstract: A liquid crystal polyester resin composition including a liquid crystal polyester resin, 15 parts by mass or more and 100 parts by mass or less of a carbon fiber with respect to 100 parts by mass of the liquid crystal polyester resin, and 0.001 parts by mass or more and 0.02 parts by mass or less of a fullerene with respect to 100 parts by mass of the carbon fiber.
    Type: Application
    Filed: October 26, 2018
    Publication date: September 24, 2020
    Inventor: Shintaro KOMATSU
  • Publication number: 20200002485
    Abstract: A liquid crystal polymer resin composition for an outer plate includes a liquid crystal polymer and a plate-shaped filler, in which the amount of the plate-shaped filler is 20 parts by mass or more and 70 parts by mass or less with respect to 100 parts by mass of the liquid crystal polymer.
    Type: Application
    Filed: December 14, 2017
    Publication date: January 2, 2020
    Inventors: Shintaro KOMATSU, Taiga SAKAI, Mitsuo MAEDA
  • Publication number: 20190389108
    Abstract: A plate-shaped molded body manufacturing method is provided. The manufacturing method involves a step of injection-molding a liquid crystal polymer resin composition using a mold that satisfies the following conditions (i) to (iii). (i) The mold includes a cavity and a gate that is connected to the cavity, the cavity has a shape that corresponds to the plate-shaped molded body, and the gate is provided across approximately an entire width of one side of the cavity. (ii) The mold includes a runner that is connected to the gate, and the runner extends along approximately an entire width of the gate. (iii) In a cross section perpendicular to an extension direction of the runner, a shape of an inside space of the runner has a wedge-shaped portion in which a width of the inside space gradually decreases toward the gate.
    Type: Application
    Filed: December 14, 2017
    Publication date: December 26, 2019
    Inventors: Shintaro KOMATSU, Taiga SAKAI, Mitsuo MAEDA
  • Publication number: 20190241711
    Abstract: The present invention relates to a prepreg which contains an oriented liquid crystal polymer and a base that uses a continuous carbon fiber bundle as a forming material. The liquid crystal polymer is a thermotropic liquid crystal polymer and the base is included in an amount of at least 25 parts by mass but not more than 550 parts by mass per 100 parts by mass of the liquid crystal polymer.
    Type: Application
    Filed: July 26, 2017
    Publication date: August 8, 2019
    Inventor: Shintaro KOMATSU
  • Publication number: 20180354175
    Abstract: Provided is an electronic equipment housing obtained by injection molding of a resin composition including liquid crystal polyester and a filling material. In the electronic equipment housing, a projected area per filling gate mark obtained by dividing a projected area of the electronic equipment housing by the number of filling gate marks of the resin composition on a surface of the electronic equipment housing is equal to or greater than 100 cm2. In the electronic equipment housing, a ratio obtained by dividing the projected area (cm2) per filling gate mark by an average thickness (cm) of the electronic equipment housing is equal to or greater than 1,000. In the electronic equipment housing, the average thickness is greater than 0.01 cm and equal to or smaller than 0.2 cm. The liquid crystal polyester has one or more repeating units selected from the group represented by specific formulae.
    Type: Application
    Filed: September 7, 2016
    Publication date: December 13, 2018
    Applicant: Sumitomo Chemical Company, Limited
    Inventor: Shintaro KOMATSU
  • Patent number: 9771475
    Abstract: A liquid crystal polyester composition contains: a liquid crystal polyester in an amount of 100 parts by mass as well as a fibrous filler and a plate-like filler in an amount of not less than 65 parts by mass and not more than 100 parts by mass in total. The fibrous filler in the composition has a number average fiber diameter of not less than 5 ?m and not more than 15 ?m and a number average fiber length of more than 200 ?m and less than 400 ?m. The mass ratio of the fibrous filler to the plate-like filler in the composition is not less than 3 and not more than 15. The flow starting temperature of the composition is not lower than 250° C. and lower than 314° C.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: September 26, 2017
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shintaro Komatsu, Hiroshi Harada
  • Patent number: 9538694
    Abstract: A method for producing a liquid-crystalline polymer composition containing a liquid-crystalline polymer and a magnetic filler formed by heat-treating a composite material of a ceramic powder and a soft magnetic metal powder in an inert gas atmosphere.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: January 3, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shintaro Komatsu, Hiroshi Harada
  • Publication number: 20160177211
    Abstract: A liquid crystal polyester composition contains a liquid crystal polyester, a fluorine resin, a carbon fiber, and a granular filler.
    Type: Application
    Filed: July 28, 2014
    Publication date: June 23, 2016
    Inventors: Shintaro KOMATSU, Mitsuo MAEDA
  • Publication number: 20150073068
    Abstract: A liquid crystal polyester composition contains: a liquid crystal polyester in an amount of 100 parts by mass as well as a fibrous filler and a plate-like filler in an amount of not less than 65 parts by mass and not more than 100 parts by mass in total. The fibrous filler in the composition has a number average fiber diameter of not less than 5 ?m and not more than 15 ?m and a number average fiber length of more than 200 ?m and less than 400 ?m. The mass ratio of the fibrous filler to the plate-like filler in the composition is not less than 3 and not more than 15. The flow starting temperature of the composition is not lower than 250° C. and lower than 314° C.
    Type: Application
    Filed: March 18, 2013
    Publication date: March 12, 2015
    Inventors: Shintaro Komatsu, Hiroshi Harada
  • Publication number: 20140231714
    Abstract: A method for producing a liquid-crystalline polymer composition containing a liquid-crystalline polymer and a magnetic filler formed by heat-treating a composite material of a ceramic powder and a soft magnetic metal powder in an inert gas atmosphere.
    Type: Application
    Filed: April 28, 2014
    Publication date: August 21, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shintaro KOMATSU, Hiroshi HARADA
  • Patent number: 8721921
    Abstract: To provide a liquid crystal polyester composition that yields compacts that are resistant to cracking. A plate-like filler with a volume-average particle size of 14 ?m or greater and a fibrous filler are combined with a liquid crystal polyester to form a liquid crystal polyester composition. The total content of the plate-like filler and the fibrous filler is 45-55 wt % with respect to the total of the liquid crystal polyester composition. The weight ratio of the fibrous filler content to the plate-like filler content is greater than 0.5 and not greater than 0.65.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: May 13, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshiyuki Fukuhara, Shintaro Komatsu
  • Patent number: 8545719
    Abstract: The present invention provides a liquid crystal polyester composition, comprising (i) 100 parts by weight of a liquid crystal polyester, and (ii) 65 to 100 parts by weight of a combination of a fibrous filler with a plate-like filler, wherein the fibrous filler has a number-average fiber diameter of 5 to 15 ?m, and a number-average aspect ratio of 20 to 40, and a content ratio by weight of the fibrous filler to the plate-like filler is more than 1.0 and 1.6 or less; and a process for producing the liquid crystal polyester composition comprising a step of melt-kneading the above respective components with one another.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: October 1, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shintaro Komatsu, Yoshiyuki Fukuhara, Hiroshi Harada
  • Patent number: 8519042
    Abstract: A thermal-conductive resin composition which can provide an molded article excellent in thermal conductivity and/or mechanical strength is provided. The resin composition comprising a resin selected from a thermosetting resin and a thermoplastic resin; a granule having a number average particle diameter of 0.5 to 5 mm and comprising alumina fibers with a number average fiber diameter of 1 to 50 ?m; and an alumina fine particle.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: August 27, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shintaro Komatsu, Mitsuo Maeda, Hiroshi Harada
  • Publication number: 20120242000
    Abstract: An FPC connector is manufactured by pouring a resin material into a cavity defined by a mold through a gate formed to the mold so as to fill the cavity to thereby perform an injection molding of the FPC connector. In the manufacture, a mold to which a single gate is formed is used, and the gate is formed at a position between one end portion of the cavity and a portion apart inside by 15/100 of a full length of the cavity from one end in a longitudinal direction thereof. A liquid crystalline polyester may be preferable used as the resin material.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 27, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shintaro KOMATSU, Hiroshi HARADA
  • Patent number: 8258209
    Abstract: The present invention provides a resin composition comprising: (A) a thermoplastic resin, (B) a granular material which has a number average particle diameter of 0.5 to 5 mm and is obtainable by granulating a fiber mainly having alumina with a number average fiber diameter of 1 to 50 ?m, and (C) a filler composed of a material of which electric resistivity at 300 K is 102 ?m or less. The resin composition can be molded into a molded article with electric insulation. The electric resistivity of the molded article has sufficient electric insulation in applications such as in electric and electronic parts.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 4, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shintaro Komatsu, Mitsuo Maeda, Hiroshi Harada
  • Publication number: 20120217678
    Abstract: The present invention provides a liquid crystal polyester composition, comprising (i) 100 parts by weight of a liquid crystal polyester, and (ii) 65 to 100 parts by weight of a combination of a fibrous filler with a plate-like filler, wherein the fibrous filler has a number-average fiber diameter of 5 to 15 ?m, and a number-average aspect ratio of 20 to 40, and a content ratio by weight of the fibrous filler to the plate-like filler is more than 1.0 and 1.6 or less; and a process for producing the liquid crystal polyester composition comprising a step of melt-kneading the above respective components with one another.
    Type: Application
    Filed: February 8, 2012
    Publication date: August 30, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shintaro KOMATSU, Yoshiyuki FUKUHARA, Hiroshi HARADA
  • Publication number: 20120104315
    Abstract: To provide a liquid crystal polyester composition that yields compacts that are resistant to cracking. A plate-like filler with a volume-average particle size of 14 ?m or greater and a fibrous filler are combined with a liquid crystal polyester to form a liquid crystal polyester composition. The total content of the plate-like filler and the fibrous filler is 45-55 wt % with respect to the total of the liquid crystal polyester composition. The weight ratio of the fibrous filler content to the plate-like filler content is greater than 0.5 and not greater than 0.65.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 3, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yoshiyuki FUKUHARA, Shintaro KOMATSU
  • Publication number: 20110245413
    Abstract: A liquid-crystalline polymer composition containing a liquid-crystalline polymer and a magnetic filler formed by heat-treating a composite material of a ceramic powder and a soft magnetic metal powder in an inert gas atmosphere.
    Type: Application
    Filed: March 25, 2011
    Publication date: October 6, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shintaro KOMATSU, Hiroshi HARADA