Patents by Inventor Mika Kobune

Mika Kobune 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: 12183656
    Abstract: A method of manufacturing a semiconductor device includes adhering together a heat dissipating body and a plurality of heat generating bodies via a thermally conductive sheet, by applying pressure to the heat dissipating body and the plurality of heat generating bodies in a thickness direction of the thermally conductive sheet with the thermally conductive sheet disposed therebetween, the thermally conductive sheet having a compression modulus of 1.40 MPa or less under a compressive stress of 0.10 MPa at 150° C.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: December 31, 2024
    Assignee: RESONAC CORPORATION
    Inventors: Mika Kobune, Michiaki Yajima
  • Patent number: 11810834
    Abstract: A thermal conduction sheet includes graphite particles (A) of at least one kind selected from the group consisting of flake-shaped particles, ellipsoidal particles, and rod-shaped particles. When the graphite particles (A) are flake-shaped particles, a planar direction of the graphite particles (A) is oriented in a thickness direction of the thermal conduction sheet, when the graphite particles (A) are ellipsoidal particles, a major axis direction of the graphite particles (A) is oriented in the thickness direction of the thermal conduction sheet, when the graphite particles (A) are rod-like particles, a longitudinal direction of the graphite particles (A) is oriented in the thickness direction of the thermal conduction sheet, the thermal conduction sheet has an elastic modulus of 1.4 MPa or less under a compression stress of 0.1 MPa at 150° C., and the thermal conduction sheet has a tack strength of 5.0 N·mm or higher at 25° C.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: November 7, 2023
    Assignee: RESONAC CORPORATION
    Inventors: Mika Kobune, Michiaki Yajima
  • Patent number: 11639426
    Abstract: A heat conduction sheet, includes at least one kind of graphite particle (A) selected from the group consisting of scale-like particles, ellipsoidal particles and rod-like particles; a polymer (B) having an isobutylene structure; an ethylene-propylene copolymer (C); and an ethylene octene elastomer (D), in which, in a case of scale-like particles, a plane direction of the particle is oriented in a thickness direction of the heat conduction sheet, and in a case of ellipsoidal particles or rod-like particles, a long axis direction of the particle is oriented in the thickness direction of the heat conduction sheet.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 2, 2023
    Assignee: RESONAC CORPORATION
    Inventors: Akihiro Ito, Michiaki Yajima, Mika Kobune, Takahiro Ikabata
  • Patent number: 11545413
    Abstract: Provided is a thermal conduction sheet, including graphite particles (A) of at least one kind selected from the group consisting of flake-shaped particles, ellipsoidal particles, and rod-shaped particles, in which: when the graphite particles (A) are flake-shaped particles, a planar direction of the graphite particles (A) is oriented in a thickness direction of the thermal conduction sheet, when the graphite particles (A) are ellipsoidal particles, a major axis direction of the graphite particles (A) is oriented in the thickness direction of the thermal conduction sheet, when the graphite particles (A) are rod-like particles, a longitudinal direction of the graphite particles (A) is oriented in the thickness direction of the thermal conduction sheet, the thermal conduction sheet has an elastic modulus of 1.4 MPa or less under a compression stress of 0.1 MPa at 150° C., and the thermal conduction sheet has a tack strength of 5.0 N·mm or higher at 25° C.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: January 3, 2023
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Mika Kobune, Michiaki Yajima
  • Patent number: 11482467
    Abstract: A method of manufacturing a semiconductor device includes adhering together a heat dissipating body and a plurality of heat generating bodies via a thermally conductive sheet, by applying pressure to the heat dissipating body and the plurality of heat generating bodies in a thickness direction of the thermally conductive sheet with the thermally conductive sheet disposed therebetween, the thermally conductive sheet having a compression modulus of 1.40 MPa or less under a compressive stress of 0.10 MPa at 150° C.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 25, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Mika Kobune, Michiaki Yajima
  • Patent number: 11482466
    Abstract: A method of manufacturing a semiconductor device includes: adhering together a heat generating body and a heat dissipating body via a thermally conductive sheet by applying a pressure on the heat generating body and the heat dissipating body in a thickness direction of the thermally conductive sheet with the thermally conductive sheet disposed therebetween, the thermally conductive sheet having a compression modulus of 1.40 MPa or less under a compressive stress of 0.10 MPa at 150° C., and a tack strength of 5.0 N·mm or more at 25° C.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 25, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Mika Kobune, Michiaki Yajima
  • Patent number: 9568061
    Abstract: Disclosed is a brake pad for yaw control comprising: a braking part having a braking surface, and including a fluororesin fiber assembly and a matrix resin infiltrated into the fluororesin fiber assembly.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: February 14, 2017
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Mika Kobune, Akira Nagai, Atsushi Fujita, Kouichi Ueda, Masayoshi Arakawa
  • Publication number: 20120302699
    Abstract: In accordance with the present invention, by using a resin composition including lignin and a curing agent in which the lignin is soluble in an organic solvent and contained in the resin composition in an amount of from 10 to 90% by mass, there are provided a molded product and a composite molded product which are obtained from plant resources as a main raw material and to which a good flame retardance and a good antibacterial property are imparted.
    Type: Application
    Filed: February 10, 2011
    Publication date: November 29, 2012
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Mika Kobune, Naoyuki Koyama, Akihito Gotou, Ikuko Kikuchi, Tomofumi Sukegawa