Patents by Inventor Isao DOUCHI

Isao DOUCHI 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: 10305188
    Abstract: An antenna device includes: a plurality of cores arranged in series; a coil; and a capacitor connected to the coil, in which a first core, which is selected from the plurality of cores, and a second core, which is selected from the plurality of cores and is arranged on any one end portion side of the first core, are arranged apart from each other, and in which at least one end surface, which is selected from an end surface of the first core on a side on which the second core is arranged and an end surface of the second core on a side on which the first core is arranged, is located on an inner peripheral side of the coil.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: May 28, 2019
    Assignee: Sumida Corporation
    Inventors: Yoshinori Inoue, Isao Douchi, Kei Tanaka, Takanari Fujimaki, Yoshinori Miura, Hiroshi Kawasaki, Hiromitsu Kuriki, Takanobu Rokuka, Hiroyuki Miyazaki
  • Publication number: 20180166783
    Abstract: An antenna device including a first rod-shaped core having a flange portion and a second rod-shaped core having a flange portion, which are arranged in series and including a first coil and a second coil, wherein the end surface of the first rod-shaped core and the end surface of the second rod-shaped core are spaced.
    Type: Application
    Filed: December 8, 2017
    Publication date: June 14, 2018
    Inventors: Yoshinori Inoue, Isao Douchi, Kei Tanaka, Takanari Fujimaki, Yoshinori Miura, Hiroshi Kawasaki, Hiromitsu Kuriki, Takanobu Rokuka, Hiroyuki Miyazaki
  • Publication number: 20180159224
    Abstract: An antenna device includes: a plurality of cores arranged in series; a coil; and a capacitor connected to the coil, in which a first core, which is selected from the plurality of cores, and a second core, which is selected from the plurality of cores and is arranged on any one end portion side of the first core, are arranged apart from each other, and in which at least one end surface, which is selected from an end surface of the first core on a side on which the second core is arranged and an end surface of the second core on a side on which the first core is arranged, is located on an inner peripheral side of the coil.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 7, 2018
    Inventors: Yoshinori INOUE, Isao DOUCHI, Kei TANAKA, Takanari FUJIMAKI, Yoshinori MIURA, Hiroshi KAWASAKI, Hiromitsu KURIKI, Takanobu ROKUKA, Hiroyuki MIYAZAKI