Patents by Inventor Fumiyoshi Yamashita

Fumiyoshi Yamashita 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).

  • Copper-based alloy material, production method therefor, and members or parts made of copper-based alloy material
    Patent number: 11959161
    Abstract: A copper-based alloy material including a multiphase structure containing a matrix of a ? phase and a precipitation phase of a B2-type crystal structure dispersed in the matrix, where the copper-based alloy material includes a composition containing 8.6 to 12.6% by mass of Al, 2.9 to 8.9% by mass of Mn, 3.2 to 10.0% by mass of Ni, and Cu.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 16, 2024
    Assignees: FURUKAWA TECHNO MATERIAL CO., LTD., TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Sumio Kise, Fumiyoshi Yamashita, Misato Fujii, Koji Ishikawa, Ryosuke Kainuma, Toshihiro Omori, Nobuyasu Matsumoto
  • Ni-Ti-BASED ALLOY MATERIAL, METHOD FOR PRODUCING Ni-Ti-BASED ALLOY MATERIAL, AND WIRE OR TUBE INCLUDING Ni-Ti-BASED ALLOY MATERIAL
    Publication number: 20220220581
    Abstract: A Ni—Ti-based alloy material includes a matrix phase consisting essentially of a Ni—Ti-based alloy and having a B2 type crystal structure. A nonmetallic inclusion is present in the matrix phase, in which 99% by mass or more of the nonmetallic inclusion is a TiC-based inclusion having a NaCl type crystal structure, the TiC-based inclusion has a lattice misfit (?) in a range of 0.4238 or more and 0.4259 or less. The lattice misfit (?) is represented by Expression ?=(a1?a2)/a2, where a1 is a lattice constant (?) of the TiC-based inclusion and a2 is a lattice constant (?) of the matrix phase.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 14, 2022
    Applicants: FURUKAWA TECHNO MATERIAL CO., LTD., FURUKAWA ELECTRIC CO., LTD.
    Inventors: Fumiyoshi YAMASHITA, Sumio KISE, Kenji URUMA
  • Ti—Ni-based alloy; wire, electrically conductive actuator, and temperature sensor, each using this alloy; and method of producing a Ti—Ni-based alloy
    Patent number: 11313732
    Abstract: A Ti—Ni-based alloy, which has a torsion angle for Interface I that is a junction plane between habit plane variants of a martensitic phase, of less than 1.00°; a wire, an electrically conductive actuator, and a temperature sensor, each of which uses that alloy; and a method of producing the Ti—Ni-based alloy.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: April 26, 2022
    Assignees: FURUKAWA TECHNO MATERIAL CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Sumio Kise, Fumiyoshi Yamashita, Misato Fujii, Tomonari Inamura, Hideki Hosoda, Yuri Shinohara, Masaki Tahara, Ryota Morishige, Keisuke Saito
  • COPPER-BASED ALLOY MATERIAL, PRODUCTION METHOD THEREFOR, AND MEMBERS OR PARTS MADE OF COPPER-BASED ALLOY MATERIAL
    Publication number: 20210317557
    Abstract: The present invention provides a highly fracture resistant, fatigue resistant copper-based alloy material and the like for which, for example, even when the material is subjected to repeated deformation consisting of loading of stress for applying a shape-memory alloy-specific strain and unloading of same followed return to the original shape, the alloy material is not susceptible to persistence of such strain. This copper-based alloy material has a multiphase structure in which a B2-type crystal structure precipitated phase is dispersed in a ?-phase-comprising matrix.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 14, 2021
    Applicants: FURUKAWA TECHNO MATERIAL CO., LTD., TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Sumio KISE, Fumiyoshi YAMASHITA, Misato FUJII, Koji ISHIKAWA, Ryosuke KAINUMA, Toshihiro OMORI, Nobuyasu MATSUMOTO
  • Ti-Ni-BASED ALLOY; WIRE, ELECTRICALLY CONDUCTIVE ACTUATOR, AND TEMPERATURE SENSOR, EACH USING THIS ALLOY; AND METHOD OF PRODUCING A Ti-Ni-BASED ALLOY
    Publication number: 20200209068
    Abstract: A Ti—Ni-based alloy, which has a torsion angle for Interface I that is a junction plane between habit plane variants of a martensitic phase, of less than 1.00°; a wire, an electrically conductive actuator, and a temperature sensor, each of which uses that alloy; and a method of producing the Ti—Ni-based alloy.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 2, 2020
    Applicants: FURUKAWA TECHNO MATERIAL CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Sumio Kise, Fumiyoshi Yamashita, Misato Fujii, Tomonari Inamura, Hideki Hosoda, Yuri Shinohara, Masaki Tahara, Ryota Morishige, Keisuke Saito