Patents by Inventor Yoshihisa Tamagawa

Yoshihisa Tamagawa 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: 10540045
    Abstract: The transparent conductor involves a first laminate part including a transparent resin substrate and a transmittance-controlling layer, and a second laminate part including the transparent resin substrate, the transmittance-controlling layer, a metal layer containing silver or a silver alloy, and a metal oxide layer in the order presented. The first laminate part and the second laminate part are adjacent to each other in a direction perpendicular to the direction of lamination of the first laminate part and the second laminate part, and the difference between the transmittance of the first laminate part in the direction of lamination, T1, and the transmittance of the second laminate part in the direction of lamination, T2, (T2?T1) is 4% or more.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 21, 2020
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Shingai, Yoshihisa Tamagawa, Motohiro Sakurai
  • Patent number: 10527873
    Abstract: Provided is a transparent conductor including a transparent resin substrate, a first metal oxide layer, a metal layer containing a silver alloy, and a second metal oxide layer laminated in the order presented, wherein the second metal oxide layer contains zinc oxide, indium oxide, titanium oxide, and tin oxide.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: January 7, 2020
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Shingai, Yoshihisa Tamagawa, Motohiro Sakurai
  • Publication number: 20190393585
    Abstract: A transparent conductive film for antennas, includes: a transparent resin substrate; a first metal oxide layer; a metal layer containing silver or a silver alloy; and a second metal oxide layer, stacked in this order.
    Type: Application
    Filed: January 22, 2018
    Publication date: December 26, 2019
    Applicant: TDK CORPORATION
    Inventors: Yoshihisa TAMAGAWA, Hiroshi SHINGAI, Kazuhisa INABA, Syunji MATSUBARA
  • Patent number: 10510457
    Abstract: The transparent conductor includes a transparent resin substrate, a first metal oxide layer, a metal layer containing a silver alloy, and a second metal oxide layer in the order presented. The first metal oxide layer contains zinc oxide, indium oxide, and titanium oxide, and the content of SnO2 in the first metal oxide layer is 40 mol % or less with respect to the total of four components of zinc oxide, indium oxide, titanium oxide, and tin oxide in terms of ZnO, In2O3, TiO2, and SnO2, respectively. The second metal oxide layer contains the four components, and the content of SnO2 in the second metal oxide layer is 12 to 40 mol % with respect to the total of the four components in terms of ZnO, In2O3, TiO2, and SnO2, respectively.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: December 17, 2019
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Shingai, Yoshihisa Tamagawa, Yoshihiko Tanabe, Motohiro Sakurai, Yoshinori Sato
  • Publication number: 20190160783
    Abstract: A transparent conductor includes: a transparent resin base material; a first metal oxide layer; a metal layer including a silver alloy; and a second metal oxide layer, in this order. The first metal oxide layer contains at least one of tin oxide and niobium oxide. When the tin oxide and the niobium oxide are respectively set in terms of SnO2 and Nb2O5, a molar basis content of the total of SnO2 and Nb2O5 with respect to the total of metal oxides contained in the first metal oxide layer is greater than a molar basis content of the total of SnO2 and Nb2O5 with respect to the total of metal oxides contained in the second metal oxide layer, and the content in the first metal oxide layer is greater than or equal to 45 mol %.
    Type: Application
    Filed: June 9, 2017
    Publication date: May 30, 2019
    Applicant: TDK CORPORATION
    Inventors: Hiroshi SHINGAI, Yoshihisa TAMAGAWA, Yoshihiko TANABE, Yoshinori SATO
  • Publication number: 20180197649
    Abstract: The transparent conductor includes a transparent resin substrate, a first metal oxide layer, a metal layer containing a silver alloy, and a second metal oxide layer in the order presented. The first metal oxide layer contains zinc oxide, indium oxide, and titanium oxide, and the content of SnO2 in the first metal oxide layer is 40 mol % or less with respect to the total of four components of zinc oxide, indium oxide, titanium oxide, and tin oxide in terms of ZnO, In2O3, TiO2, and SnO2, respectively. The second metal oxide layer contains the four components, and the content of SnO2 in the second metal oxide layer is 12 to 40 mol % with respect to the total of the four components in terms of ZnO, In2O3, TiO2, and SnO2, respectively.
    Type: Application
    Filed: December 8, 2016
    Publication date: July 12, 2018
    Applicant: TDK CORPORATION
    Inventors: Hiroshi SHINGAI, Yoshihisa TAMAGAWA, Yoshihiko TANABE, Motohiro SAKURAI, Yoshinori SATO
  • Publication number: 20180113529
    Abstract: The transparent conductor involves a first laminate part including a transparent resin substrate and a transmittance-controlling layer, and a second laminate part including the transparent resin substrate, the transmittance-controlling layer, a metal layer containing silver or a silver alloy, and a metal oxide layer in the order presented. The first laminate part and the second laminate part are adjacent to each other in a direction perpendicular to the direction of lamination of the first laminate part and the second laminate part, and the difference between the transmittance of the first laminate part in the direction of lamination, T1, and the transmittance of the second laminate part in the direction of lamination, T2, (T2?T1) is 4% or more.
    Type: Application
    Filed: April 22, 2016
    Publication date: April 26, 2018
    Applicant: TDK CORPORATION
    Inventors: Hiroshi SHINGAI, Yoshihisa TAMAGAWA, Motohiro SAKURAI
  • Publication number: 20180024388
    Abstract: Provided is a transparent conductor including a transparent resin substrate, a first metal oxide layer, a metal layer containing a silver alloy, and a second metal oxide layer laminated in the order presented, wherein the second metal oxide layer contains zinc oxide, indium oxide, titanium oxide, and tin oxide.
    Type: Application
    Filed: March 25, 2016
    Publication date: January 25, 2018
    Applicant: TDK Corporation
    Inventors: Hiroshi SHINGAI, Yoshihisa TAMAGAWA, Motohiro SAKURAI
  • Publication number: 20050092251
    Abstract: A vacuum processing apparatus 50 is provided with a bypass line 52 for causing a vacuum transfer chamber 4 and a load-lock chamber 12 to communicate with each other, and a bypass opening and shutting valve 54 for opening and shutting the corresponding bypass line 52, wherein by opening the bypass opening and shutting valve 54, a pressure-reduced state at the vacuum transfer chamber 4 side can be shifted to the load-lock chamber 12 side, and the pressure reduction of the load-lock chamber 12 can be carried out in a short time.
    Type: Application
    Filed: December 2, 2004
    Publication date: May 5, 2005
    Applicant: TDK CORPORATION
    Inventors: Masanori Kosuda, Yoshihisa Tamagawa, Hideki Ishizaki
  • Patent number: 6843883
    Abstract: A vacuum processing apparatus 50 is provided with a bypass line 52 for causing a vacuum transfer chamber 4 and a load-lock chamber 12 to communicate with each other, and a bypass opening and shutting valve 54 for opening and shutting the corresponding bypass line 52, wherein by opening the bypass opening and shutting valve 54, a pressure-reduced state at the vacuum transfer chamber 4 side can be shifted to the load-lock chamber 12 side, and the pressure reduction of the load-lock chamber 12 can be carried out in a short time.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: January 18, 2005
    Assignee: TDK Corporation
    Inventors: Masanori Kosuda, Yoshihisa Tamagawa, Hideki Ishizaki
  • Publication number: 20030051815
    Abstract: A vacuum processing apparatus 50 is provided with a bypass line 52 for causing a vacuum transfer chamber 4 and a load-lock chamber 12 to communicate with each other, and a bypass opening and shutting valve 54 for opening and shutting the corresponding bypass line 52, wherein by opening the bypass opening and shutting valve 54, a pressure-reduced state at the vacuum transfer chamber 4 side can be shifted to the load-lock chamber 12 side, and the pressure reduction of the load-lock chamber 12 can be carried out in a short time.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 20, 2003
    Inventors: Masanori Kosuda, Yoshihisa Tamagawa, Hideki Ishizaki