Patents by Inventor Yutaka Kuroshima

Yutaka Kuroshima 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: 6881905
    Abstract: A mounting structure of a superconductor circuit including a superconductor circuit substrate having a superconductor circuit, a base in which the superconductor circuit substrate is placed on a side of the base, a metal foil placed between the superconductor circuit substrate and the base, a fixing means for fixing the superconductor circuit substrate and the metal foil to a side of the base, a container which is vacuum-sealed after the superconductor circuit substrate, the base, the metal foil, and the fixing means are put into the container, and a penetrating hole formed in the -base and penetrated from a part of the base which is covered by the metal foil to a part of the base which is not in contact with the metal foil is provided.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: April 19, 2005
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventor: Yutaka Kuroshima
  • Patent number: 6876837
    Abstract: A portable electronic equipment is capable of preventing warpage of an internal substrate accommodated therein due to pressing operations of button keys to thereby improve the mechanical strength thereof and contribute a downsizing thereof. To this end, a stopper 14 is provided on a front case 1 for limiting the amount of depression of each button key 8. The stopper 14 has a shape to support an entire outer periphery of a flange 15 of each button key or a shape to support an outer periphery of a flange 15 of each button key radially in a plurality of directions. Also, key seats 19 for the button keys are connected with each other in a bridge-shaped configuration, or formed separately or independently from each other. In addition, the front cover is provided with a case cover for preventing the button keys from popping out therefrom.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: April 5, 2005
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yutaka Kuroshima, Masaru Kitahara
  • Publication number: 20030127574
    Abstract: A mounting structure of a superconductor circuit including a superconductor circuit substrate having a superconductor circuit, a base in which the superconductor circuit substrate is placed on a side of the base, a metal foil placed between the superconductor circuit substrate and the base, a fixing means for fixing the superconductor circuit substrate and the metal foil to a side of the base, a container which is vacuum-sealed after the superconductor circuit substrate, the base, the metal foil, and the fixing means are put into the container, and a penetrating hole formed in the -base and penetrated from a part of the base which is covered by the metal foil to a part of the base which is not in contact with the metal foil is provided.
    Type: Application
    Filed: June 27, 2002
    Publication date: July 10, 2003
    Inventor: Yutaka Kuroshima
  • Publication number: 20010034211
    Abstract: A portable electronic equipment is capable of preventing warpage of an internal substrate accommodated therein due to pressing operations of button keys to thereby improve the mechanical strength thereof and contribute a downsizing thereof. To this end, a stopper 14 is provided on a front case 1 for limiting the amount of depression of each button key 8. The stopper 14 has a shape to support an entire outer periphery of a flange 15 of each button key or a shape to support an outer periphery of a flange 15 of each button key radially in a plurality of directions. Also, key seats 19 for the button keys are connected with each other in a bridge-shaped configuration, or formed separately or independently from each other. In addition, the front cover is provided with a case cover for preventing the button keys from popping out therefrom.
    Type: Application
    Filed: March 29, 2001
    Publication date: October 25, 2001
    Inventors: Yutaka Kuroshima, Masaru Kitahara