Patents by Inventor Yoshitaka Kawamoto

Yoshitaka Kawamoto 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).

  • Incised prepreg, cross-ply laminate, and production method for incised prepreg
    Patent number: 11926074
    Abstract: An intermediate base material is provided that is excellent in the conformity to three-dimensional shapes and that, when formed into a fiber reinforced plastic, develops good surface quality and high mechanical properties. According to one aspect, an incised prepreg is provided that has, in at least a partial region in a prepreg that contains unidirectionally oriented reinforcing fibers and a resin, a plurality of incisions that divide reinforcing fibers, wherein, in the case where a population is made up of the numbers of incisions contained in ten small circular regions of 10 mm in diameter randomly selected in the aforementioned region, a mean value for the population is 10 or greater and a coefficient of variation therefor is within 20%.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 12, 2024
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yuzo Fujita, Yuta Naito, Ichiro Taketa, Shiori Kawamoto, Yoshitaka Koyama
  • Flexible tubing material and method of forming the material
    Patent number: 9133332
    Abstract: A flexible tubing material includes a radiation crosslinked blend of a first elastomeric polymer including a styrenic thermoplastic elastomer, an ethylene vinyl acetate elastomer, a polylefin elastomer with a second elastomeric polymer including a polyolefin elastomer, a diene elastomer, or combination thereof, with the proviso that the first elastomeric polymer and the second elastomeric polymer are different. In an embodiment, a method of making a material includes providing the first elastomeric polymer, providing the second elastomeric polymer, blending the first elastomeric polymer and the second elastomeric polymer, extruding or injection molding the blend, and crosslinking the blend with radiation.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: September 15, 2015
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Yoshitaka Kawamoto, Sridhar Krishnamurthi Siddhamalli
  • Flexible Tubing Material and Method of Forming the Material
    Publication number: 20130072633
    Abstract: A flexible tubing material includes a radiation crosslinked blend of a first elastomeric polymer including a styrenic thermoplastic elastomer, an ethylene vinyl acetate elastomer, a polylefin elastomer with a second elastomeric polymer including a polyolefin elastomer, a diene elastomer, or combination thereof, with the proviso that the first elastomeric polymer and the second elastomeric polymer are different. In an embodiment, a method of making a material includes providing the first elastomeric polymer, providing the second elastomeric polymer, blending the first elastomeric polymer and the second elastomeric polymer, extruding or injection molding the blend, and crosslinking the blend with radiation.
    Type: Application
    Filed: October 4, 2012
    Publication date: March 21, 2013
    Inventors: Yoshitaka Kawamoto, Sridhar Krishnamurthi Siddhamalli