Patents by Inventor Shigemi Kurashima

Shigemi Kurashima 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: 10732367
    Abstract: A high-frequency module includes a first board on which an electronic device is mounted, a second board on which at least wiring is formed, and a radio-wave absorber disposed between the first board and the second board. Multiple slits are formed in the radio-wave absorber.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: August 4, 2020
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Shigemi Kurashima, Mitsuki Kanda, Takatoshi Yagisawa, Masahiro Yanagi
  • Publication number: 20200020651
    Abstract: A radio-frequency module includes a semiconductor device, a first signal line configured to transmit an electrical signal to the semiconductor device, a ground electrode, and a first discharge unit situated between the first signal line and the ground electrode, wherein the first discharge unit includes a first projection formed on the ground electrode and a second projection formed on the first signal line, and the first projection and the second projection are situated opposite each other, with a predetermined distance therebetween, and wherein when an effective wavelength of the transmitted electrical signal is denoted as ?g, and a length of the first projection is denoted as L, ?g and L are related as: 0<(L/?g)?0.1.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Shigemi Kurashima, Mitsuki Kanda, Takatoshi Yagisawa
  • Publication number: 20190219781
    Abstract: A high-frequency module includes a first board on which an electronic device is mounted, a second board on which at least wiring is formed, and a radio-wave absorber disposed between the first board and the second board. Multiple slits are formed in the radio-wave absorber.
    Type: Application
    Filed: November 26, 2018
    Publication date: July 18, 2019
    Inventors: Shigemi Kurashima, Mitsuki Kanda, Takatoshi Yagisawa, Masahiro Yanagi
  • Publication number: 20190101714
    Abstract: An optical module includes a board, a light emitter disposed on the board, a light receiver disposed on the board, and at least one radio-wave absorber disposed between the light emitter and the light receiver.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventors: Shigemi Kurashima, Mitsuki Kanda, Takatoshi Yagisawa, Masahiro Yanagi
  • Patent number: 10209458
    Abstract: An optical module for connecting a ferrule for connecting an optical fiber and a photoelectric transducer mounted on a substrate includes first lenses, second lenses, and a dummy lens. The first lenses are provided on a first side of the optical module to which the ferrule is to be connected. The second lenses and the dummy lens are provided on a second side of the optical module facing a surface of the substrate. The second lenses and the dummy lens are aligned on the same line. An image of the dummy lens is reflected from a mirror to be projected onto a plane on the first side of the optical module.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: February 19, 2019
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Shigemi Kurashima, Hongfei Zhang, Shinichiro Akieda, Osamu Daikuhara
  • Patent number: 10133016
    Abstract: An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: November 20, 2018
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Hongfei Zhang, Shigemi Kurashima, Satoshi Moriyama, Shinichiro Akieda, Rie Gappa, Mitsuki Kanda
  • Publication number: 20180231716
    Abstract: An optical module for connecting a ferrule for connecting an optical fiber and a photoelectric transducer mounted on a substrate. The optical module includes first lenses provided on a first side of the optical module to which the ferrule is to be connected, second lenses provided on a second side of the optical module facing the substrate, an inclined plane provided between the first lenses and the second lenses, and inclined with respect to a surface of the substrate, and a guide hole formed in the inclined plane, to which a guide pin of the ferrule is inserted.
    Type: Application
    Filed: April 13, 2018
    Publication date: August 16, 2018
    Inventors: Shigemi Kurashima, Hongfei Zhang, Shinichiro Akieda, Osamu Daikuhara
  • Patent number: 10042134
    Abstract: An optical module for connecting photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 7, 2018
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Hongfei Zhang, Shigemi Kurashima, Satoshi Moriyama, Shinichiro Akieda, Rie Gappa, Mitsuki Kanda
  • Patent number: 9989718
    Abstract: An optical module includes a board; a photoelectric transducer disposed on the board; an optical waveguide that is connected to the board and transmits light entering or emitted from the photoelectric transducer; an optical connector including a first end connected to the optical waveguide and a second end to be connected to an optical cable; a housing that houses the board, the photoelectric transducer, the optical waveguide, and the optical connector; and a conductive part that is provided between the optical waveguide and the housing, in contact with the housing, and formed of an elastic conductive material or a radio absorbing material.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: June 5, 2018
    Assignees: FUJITSU COMPONENT LIMITED, FUJITSU LIMITED
    Inventors: Shigemi Kurashima, Mitsuki Kanda, Shinichiro Akieda, Takatoshi Yagisawa
  • Publication number: 20180100980
    Abstract: An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 12, 2018
    Inventors: Hongfei Zhang, Shigemi Kurashima, Satoshi Moriyama, Shinichiro Akieda, Rie Gappa, Mitsuki Kanda
  • Publication number: 20180095230
    Abstract: An optical module for connecting photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 5, 2018
    Inventors: Hongfei Zhang, Shigemi Kurashima, Satoshi Moriyama, Shinichiro Akieda, Rie Gappa, Mitsuki Kanda
  • Patent number: 9905927
    Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: February 27, 2018
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Masahiro Yanagi, Shigemi Kurashima, Hideaki Yoda
  • Publication number: 20180031789
    Abstract: An optical module includes a board; a photoelectric transducer disposed on the board; an optical waveguide that is connected to the board and transmits light entering or emitted from the photoelectric transducer; an optical connector including a first end connected to the optical waveguide and a second end to be connected to an optical cable; a housing that houses the board, the photoelectric transducer, the optical waveguide, and the optical connector; and a conductive part that is provided between the optical waveguide and the housing, in contact with the housing, and formed of an elastic conductive material or a radio absorbing material.
    Type: Application
    Filed: July 18, 2017
    Publication date: February 1, 2018
    Inventors: Shigemi Kurashima, Mitsuki Kanda, Shinichiro Akieda, Takatoshi Yagisawa
  • Patent number: 9857546
    Abstract: An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: January 2, 2018
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Hongfei Zhang, Shigemi Kurashima, Satoshi Moriyama, Shinichiro Akieda, Rie Gappa, Mitsuki Kanda
  • Publication number: 20170090125
    Abstract: An optical module for connecting a ferrule for connecting an optical fiber and a photoelectric transducer mounted on a substrate. The optical module includes first lenses provided on a first side of the optical module to which the ferrule is to be connected, second lenses provided on a second side of the optical module facing the substrate, an inclined plane provided between the first lenses and the second lenses, and inclined with respect to a surface of the substrate, and a guide hole formed in the inclined plane, to which a guide pin of the ferrule is inserted.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 30, 2017
    Inventors: Shigemi Kurashima, Hongfei Zhang, Shinichiro Akieda, Osamu Daikuhara
  • Patent number: 9590623
    Abstract: A touch panel includes a first conductive film having separate areas, each of which has a strip shape with a length direction thereof extending in a first direction, a second conductive film having separate areas, each of which has a strip shape with a length direction thereof extending in a second direction substantially perpendicular to the first direction, and a third conductive film, wherein the separate areas of the first conductive film are arranged side by side in the second direction, and the separate areas of the second conductive film are arranged side by side in the first direction, wherein position detection based on a capacitive method is performed by using the first conductive film and the second conductive film, and wherein a potential of a position of contact between the second conductive film and the third conductive film is detected to detect the position of the contact.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 7, 2017
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Mitsuhiro Sekizawa, Satoshi Sakurai, Nobuyoshi Shimizu, Shigemi Kurashima
  • Publication number: 20160356973
    Abstract: An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 8, 2016
    Inventors: Hongfei Zhang, Shigemi Kurashima, Satoshi Moriyama, Shinichiro Akieda, Rie Gappa, Mitsuki Kanda
  • Publication number: 20160301137
    Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.
    Type: Application
    Filed: June 10, 2016
    Publication date: October 13, 2016
    Inventors: Masahiro Yanagi, Shigemi Kurashima, Hideaki Yoda
  • Patent number: 9459720
    Abstract: A disclosed touch panel includes a panel including a plurality of first conductive films arranged in a first direction, and a plurality of second conductive films arranged in a second direction different from the first direction; a first selecting unit connected to the first conductive films to select one first conductive film or more from the first conductive films; a second selecting unit connected to the second conductive films to select one second conductive film or more from the second conductive films; and an inductor connecting the first selecting unit with a power source, which applies a voltage to the first conductive films.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: October 4, 2016
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Shigemi Kurashima, Mitsuhiro Sekizawa, Satoshi Sakurai, Nobuyoshi Shimizu
  • Patent number: 9397405
    Abstract: An antenna device includes a ground element configured to be grounded, a first antenna to be connected to a radio communication module, and a second antenna configured to be parasitic on the first antenna, the second antenna receiving no power feed.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 19, 2016
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Masahiro Yanagi, Shigemi Kurashima, Hideaki Yoda