Patents by Inventor Akihiko Tadamasa

Akihiko Tadamasa 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: 20180187025
    Abstract: A conductive coating composition includes graphite intercalation compounds, graphite oxides, a binder, and a dissolving agent. The graphite intercalation compounds are compounds having a sandwich structure where various atoms, molecules, etc., are inserted between layers of graphite, which is a layered material in which carbon hexagonal net planes are laminated in parallel. The binder and the dissolving agent allow the graphite intercalation compounds and the graphite oxides to be bonded. The graphite intercalation compounds and the graphite oxides are chemically bonded.
    Type: Application
    Filed: June 24, 2016
    Publication date: July 5, 2018
    Inventor: Akihiko TADAMASA
  • Publication number: 20180171161
    Abstract: A conductive coating composition includes graphite intercalation compounds, metal particles, a binder, and a dissolving agent. The graphite intercalation compounds are compounds having a sandwich structure where various atoms, molecules, etc., are inserted between layers of graphite, which is a layered material in which carbon hexagonal net planes are laminated in parallel. The binder and the dissolving agent allow the graphite intercalation compounds and the metal particles to be bonded. The volume of the graphite intercalation compounds in the conductive coating composition is larger than the volume of the metal particles in the conductive coating composition.
    Type: Application
    Filed: June 24, 2016
    Publication date: June 21, 2018
    Inventor: Akihiko TADAMASA
  • Publication number: 20160155528
    Abstract: An electrically conductive material according to an embodiment of the present disclosure comprises: a graphite structure comprising graphene layers, the graphite structure having a first surface that is an outer surface of one of two outermost layers of the graphene layers, and a second surface that is an outer surface of the other of the two outermost layers of the graphene layers; and a metal chloride located between the graphene layers. The graphite structure has holes on the first surface, the holes passing through at least one of the graphene layers toward the second surface. A number of the holes per unit area on the first surface is one or more per 1 mm2.
    Type: Application
    Filed: October 19, 2015
    Publication date: June 2, 2016
    Inventor: AKIHIKO TADAMASA
  • Patent number: 9247641
    Abstract: A substrate with a transparent conductive layer (1) of the present invention includes a substrate (11) and a transparent conductive layer (12) disposed on the substrate (11). The transparent conductive layer (12) has a conductive region (13) and a non-conductive region (14). The conductive region (13) contains conductive fine particles (121) and a resin matrix (122). The non-conductive region (14) contains conductive fine particles (123) and the resin matrix (122). A haze value in the non-conductive region (14) is larger than a haze value in the conductive region (13).
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: January 26, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akihiko Tadamasa, Akira Tsujimoto, Taisuke Matsui, Eri Yasuhara
  • Publication number: 20150027755
    Abstract: Provided is a transparent conductive film wherein an electrically conductive region is converted to an electrically insulating region more readily and rapidly than traditional conductive films and the level difference between the electrically conductive region and the electrically insulating region is smaller. The transparent conductive film has an electrically conductive region 4 and an electrically insulating region 5. The electrically conductive region 4 contains a resin component 10, a metal nanowire 2 and an insulation-promoting component 3. The insulation-promoting component 3 has a light absorption higher than that of the metal nanowire 2. The electrically insulating region 5 is defined by a region which contains a resin component 10 but not the metal nanowire 2 or a region which contains a resin component 10 and additionally a metal nanowire 2 having an aspect ratio of smaller than that of the metal nanowire 2.
    Type: Application
    Filed: December 11, 2012
    Publication date: January 29, 2015
    Applicant: Panasonic Corporation
    Inventors: Akira Tsujimoto, Akihiko Tadamasa, Taisuke Matsui, Eri Yasuhara
  • Publication number: 20150008416
    Abstract: A substrate with a transparent conductive layer 1 of the present invention includes a substrate 11 and a transparent conductive layer 12 disposed on the substrate 11. The transparent conductive layer 12 has a conductive region 13 and a non-conductive region 14. The conductive region 13 contains conductive fine particles 121 and a resin matrix 122. The non-conductive region 14 contains conductive fine particles 123 and the resin matrix 122. A haze value in the non-conductive region 14 is larger than a haze value in the conductive region 13.
    Type: Application
    Filed: October 30, 2012
    Publication date: January 8, 2015
    Inventors: Akihiko Tadamasa, Akira Tsujimoto, Taisuke Matsui, Eri Yasuhara