Patents by Inventor Yuma Furuhashi

Yuma Furuhashi 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: 20210115209
    Abstract: A prepreg sheet includes a plurality of prepreg tapes each of which overlaps with a corresponding adjacent prepreg tape for a suitable overlapping length. The plurality of prepreg tapes each contain a reinforcing fiber bundle that is impregnated with a thermosetting resin composition. According to a method for manufacturing a preform, for example, a primary premolded article is manufactured by preforming an intermediate base material containing a reinforcing fiber base material and a matrix resin composition, and a secondary premolded article is manufactured by preforming the primary premolded article on which the intermediate base material is further placed.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 22, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yuma FURUHASHI, Masahiro ICHINO, Kazuhisa IKEDA
  • Publication number: 20200114590
    Abstract: There are provided a method of producing a laminate that is used to produce a fiber-reinforced composite material molded product having a complex shape, and a method of producing a fiber-reinforced composite material molded product having excellent appearance and mechanical characteristics and having a complex shape. The method of producing a laminate according to the present invention includes, in an assembly (50) having at least one selected from the group consisting of an abutment part in which ends of sheet-like prepregs are abutted so that side end surfaces come in contact with each other and an overlapping part in which ends of sheet-like prepregs overlap, laminating a sheet molding compound on at least a part of one or both of the abutment part and the overlapping part in an overlapping manner.
    Type: Application
    Filed: December 12, 2019
    Publication date: April 16, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kazuhisa Ikeda, Yuma Furuhashi, Daiki Hirakawa
  • Publication number: 20200024414
    Abstract: A prepreg sheet (1) is formed by stacking a plurality of unit layers (10a, 10b) In the unit layers (10a, 10b), prepreg tapes (100), in which a reinforced fiber bundle is impregnated with a thermosetting matrix resin composition, are disposed in rows a plurality of times. One or more of the unit layers (10a, 10b) has a gap (G) between adjacent prepreg tapes (100), and the width thereof is 10% or less of the width of the narrower of the adjacent prepreg tapes (100).
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Masahiro Ichino, Kazuhisa Ikeda, Satoshi Okamoto, Yuma Furuhashi