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).

  • Publication number: 20240017955
    Abstract: A thermal conduction sheet holder include, in the following order, an elongated carrier film, a plurality of thermal conduction sheets, and an elongated cover film covering the plurality of thermal conduction sheets, the shortest distance between adjacent thermal conduction sheets is 2 mm or more, the plurality of thermal conduction sheets are disposed at intervals in a longitudinal direction of the carrier film and the cover film, and the plurality of thermal conduction sheets are peelable from the cover film and the carrier film.
    Type: Application
    Filed: October 14, 2021
    Publication date: January 18, 2024
    Inventors: Mika KOBUNE, Michiaki YAJIMA, Keita SUGA
  • 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
  • Publication number: 20230295398
    Abstract: One embodiment of the present invention relates to a thermally conductive sheet containing graphite particles (A) including at least one selected from the group consisting of flake-like particles, ellipsoidal particles, and cylindrical particles, in which the graphite particles (A) are oriented in a thickness direction, and a thickness compression ratio is 24% or more at a temperature of 150° C. and a compressive stress of 0.14 MPa.
    Type: Application
    Filed: July 8, 2020
    Publication date: September 21, 2023
    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
  • Publication number: 20230040001
    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: Application
    Filed: October 4, 2022
    Publication date: February 9, 2023
    Inventors: Mika KOBUNE, Michiaki YAJIMA
  • 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
  • Publication number: 20220392825
    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: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventors: Mika KOBUNE, Michiaki YAJIMA
  • Publication number: 20220384300
    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: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    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: 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
  • Publication number: 20210183734
    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: Application
    Filed: August 23, 2018
    Publication date: June 17, 2021
    Inventors: Mika KOBUNE, Michiaki YAJIMA
  • Publication number: 20210183733
    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: Application
    Filed: August 23, 2018
    Publication date: June 17, 2021
    Inventors: Mika KOBUNE, Michiaki YAJIMA
  • Publication number: 20200402886
    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: Application
    Filed: February 16, 2018
    Publication date: December 24, 2020
    Inventors: Mika KOBUNE, Michiaki YAJIMA
  • Publication number: 20200247963
    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: Application
    Filed: December 28, 2016
    Publication date: August 6, 2020
    Inventors: Akihiro ITO, Michiaki YAJIMA, Mika KOBUNE, Takahiro IKABATA
  • 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: 20160215143
    Abstract: Disclosed is a resin composition containing lignin and a phenol resin, the lignin being one resulting from separation of a cellulose component and a hemicellulose component from a decomposition product obtained by subjecting a plant raw material to a decomposition treatment, and the lignin and the phenol resin being mixed in a solvent. It is possible to provide a resin composition capable of being melt kneaded at low temperatures and having excellent processability and moldability, a production method for the same, and a molded product using the same.
    Type: Application
    Filed: September 30, 2014
    Publication date: July 28, 2016
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Akihito GOTOU, Mika KOBUNE, Yuki Nakamura, Tetsushi MARUYAMA
  • Publication number: 20150308532
    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: Application
    Filed: July 23, 2012
    Publication date: October 29, 2015
    Inventors: Mika KOBUNE, Akira NAGAI, Atsushi FUJITA, Kouichi UEDA, Masayoshi ARAKAWA
  • Publication number: 20150135992
    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: January 30, 2015
    Publication date: May 21, 2015
    Inventors: Mika KOBUNE, Naoyuki KOYAMA, Akihito GOTOU, Ikuko KIKUCHI, Tomofumi SUKEGAWA
  • 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