Patents by Inventor Masanori Uchigata

Masanori Uchigata 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: 10737427
    Abstract: To provide a polyarylene sulfide (PAS) resin composition and a PAS resin molded article that are excellent in mechanical strengths such as impact resistance while maintaining excellent heat resistance of the PAS resin, and methods for producing the PAS resin composition and the PAS resin molded article. Specifically, provided are a method for producing a long fiber-reinforced PAS resin molded article, the method including obtaining a long fiber-reinforced PAS resin composition containing a PAS resin and a fiber reinforcing material having a fiber length of more than 5 mm, subsequently subjecting the resin composition and a PAS resin to dry blending, and subsequently subjecting the dry-blended substance to melting and subsequently to melt-molding; the long fiber-reinforced PAS resin composition; and a method for producing the long fiber-reinforced PAS resin composition.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: August 11, 2020
    Assignee: DIC Corporation
    Inventors: Masanori Uchigata, Yukihiko Yudate, Koji Tanaka, Taku Shimaya
  • Publication number: 20180043602
    Abstract: To provide a polyarylene sulfide (PAS) resin composition and a PAS resin molded article that are excellent in mechanical strengths such as impact resistance while maintaining excellent heat resistance of the PAS resin, and methods for producing the PAS resin composition and the PAS resin molded article. Specifically, provided are a method for producing a long fiber-reinforced PAS resin molded article, the method including obtaining a long fiber-reinforced PAS resin composition containing a PAS resin and a fiber reinforcing material having a fiber length of more than 5 mm, subsequently subjecting the resin composition and a PAS resin to dry blending, and subsequently subjecting the dry-blended substance to melting and subsequently to melt-molding; the long fiber-reinforced PAS resin composition; and a method for producing the long fiber-reinforced PAS resin composition.
    Type: Application
    Filed: March 22, 2016
    Publication date: February 15, 2018
    Inventors: Masanori Uchigata, Yukihiko Yudate, Koji Tanaka, Taku Shimaya
  • Patent number: 9725596
    Abstract: Provided is a polyarylene sulfide resin composition including a polyarylene sulfide resin, an epoxy resin, glass fiber, and glass flake. The amount of the epoxy resin is 0.5 to 20 parts by mass, the amount of the glass fiber is 10 to 350 parts by mass, and the amount of the glass flake is 1 to 250 parts by mass relative to 100 parts by mass of the polyarylene sulfide resin. The epoxy resin is a combination of a bisphenol-type epoxy resin and a novolac-type epoxy resin. Also provided is a molded body formed by melt-molding the resin composition. The resin composition has good adhesiveness to epoxy resins and good flowability. Furthermore, a molded body having high thermal shock resistance can be produced using the resin composition.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 8, 2017
    Assignee: DIC Corporation
    Inventors: Masanori Uchigata, Takayuki Okada, Taku Shimaya
  • Publication number: 20160319109
    Abstract: Provided are a blow-molded hollow article a method for producing the blow-molded hollow article, a resin composition for blow-molded hollow articles for exclusively providing the blow-molded hollow article, and a method for producing the resin composition. More specifically, provided are a method for producing a blow-molded hollow article containing a polyarylene sulfide resin and a fiber reinforcing material having a fiber length of 5 mm or more, including heating a long fiber-reinforced polyarylene sulfide resin composition containing the polyarylene sulfide resin and the fiber reinforcing material having a fiber length of 5 mm or more at a temperature not lower than a melting point of the resin so as to melt the resin, and subjecting the composition to blow hollow molding, a blow-molded hollow article, a resin composition for blow-molded hollow articles, and a method for producing the resin composition.
    Type: Application
    Filed: December 17, 2014
    Publication date: November 3, 2016
    Inventors: Yutaka Maruyama, Yukihiko Yudate, Masanori Uchigata
  • Publication number: 20150080498
    Abstract: Provided is a polyarylene sulfide resin composition including a polyarylene sulfide resin, an epoxy resin, glass fiber, and glass flake. The amount of the epoxy resin is 0.5 to 20 parts by mass, the amount of the glass fiber is 10 to 350 parts by mass, and the amount of the glass flake is 1 to 250 parts by mass relative to 100 parts by mass of the polyarylene sulfide resin. The epoxy resin is a combination of a bisphenol-type epoxy resin and a novolac-type epoxy resin. Also provided is a molded body formed by melt-molding the resin composition. The resin composition has good adhesiveness to epoxy resins and good flowability. Furthermore, a molded body having high thermal shock resistance can be produced using the resin composition.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 19, 2015
    Inventors: Masanori Uchigata, Takayuki Okada, Taku Shimaya