Patents by Inventor Tomokazu Tanase

Tomokazu Tanase 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: 20220304169
    Abstract: To provide an electronic control device capable of securing electromagnetic compatibility and mechanical strength. An electronic control device includes a base portion formed in a bottomed cylindrical shape; an electronic control board provided in the base portion; and connectors provided on an opening side of the base portion and electrically connected to the electronic control board, in which the base portion includes a first layer formed of a conductive member and a second layer formed of a member different from that of the first layer.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 22, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Toshiyuki FUJIMASA, Eiji ICHIKAWA, Masao HORIE, Masashi SAITO, Hiroi NAMBU, Tomokazu TANASE
  • Publication number: 20180148622
    Abstract: A resin composition contains: a thermosetting resin; a thermally conductive filler; and mica; in which, when the thermally conductive filler is divided into a filler group (A) having a particle diameter of from 10 ?m to 100 ?m, a filler group (B) having a particle diameter of from 1.0 ?m to smaller than 10 ?m, and a filler group (C) having a particle diameter of from 0.1 ?m to smaller than 1.0 ?m, a ratio of the filler group (C) with regard to the thermally conductive filler, based on volume, is larger than a ratio of the filler group (B) with regard to the thermally conductive filler, based on volume.
    Type: Application
    Filed: May 24, 2016
    Publication date: May 31, 2018
    Inventors: Yoshitaka TAKEZAWA, Shihui SONG, Keiji FUKUSHIMA, Tomokazu TANASE, Tetsuji KATOH, Akihiro SANO, Hiroaki KOJIMA
  • Patent number: 9222001
    Abstract: An adhesive sheet 1 including a binder 3 and adhesive particles 2 mixed in the binder 3 in which the adhesive particle 2 includes an inorganic particle 21 and a polymer 22, the inorganic particle 21 is chemically bonded with the polymer 22, a portion of the adhesive particles 2 is exposed to the surface of the binder 3, the refractive index of the inorganic particle 21 is higher than the refractive index of the binder 3, and the adhesion of the adhesive particle 21 larger than the adhesion of the inorganic particle 21. An adhesive sheet having high refractive index and high adhesion, as well as an optical member and an organic member and an organic light emission device can be provided.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: December 29, 2015
    Assignee: HITACHI, LTD.
    Inventors: Hiroki Kaneko, Hiroshi Sasaki, Akitoyo Konno, Tomokazu Tanase
  • Patent number: 9090796
    Abstract: The present invention provides an organic-inorganic composite material having excellent thermal stability, electrical insulation and adhesiveness. The organic-inorganic composite material includes a resin composed of a triazine ring and obtained by thermally curing a varnish containing a mixture of a layered clay mineral (clay) subjected to interlayer modification with a curing catalyst for a cyanate ester compound and a cyanate ester compound, wherein the amount of the clay is from 0.1 to 12 wt % of the amount of the cyanate ester compound. The invention also provides a varnish which gives the organic-inorganic composite material, and an electrical device and a semiconductor device, each of which includes the organic-inorganic composite material.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 28, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Tomokazu Tanase, Hiroyuki Kagawa, Satoru Amou
  • Publication number: 20130154473
    Abstract: An adhesive sheet 1 including a binder 3 and adhesive particles 2 mixed in the binder 3 in which the adhesive particle 2 includes an inorganic particle 21 and a polymer 22, the inorganic particle 21 is chemically bonded with the polymer 22, a portion of the adhesive particles 2 is exposed to the surface of the binder 3, the refractive index of the inorganic particle 21 is higher than the refractive index of the binder 3, and the adhesion of the adhesive particle 21 larger than the adhesion of the inorganic particle 21. An adhesive sheet having high refractive index and high adhesion, as well as an optical member and an organic member and an organic light emission device can be provided.
    Type: Application
    Filed: August 16, 2011
    Publication date: June 20, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Hiroki Kaneko, Hiroshi Sasaki, Akitoyo Konno, Tomokazu Tanase