Patents by Inventor Kazuya Nagashima

Kazuya Nagashima 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: 20220007496
    Abstract: An optical module includes a box-shaped housing with an optical element mounted therein. Further, a wiring substrate is bonded to a part of a surface of a housing part of the housing, and an electric wiring, which is formed in the wiring substrate or on a surface of the wiring substrate, and an electric wiring, which is introduced into the housing part or onto a surface of the housing part, are electrically connected to each other.
    Type: Application
    Filed: September 17, 2021
    Publication date: January 6, 2022
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Maiko ARIGA, Yusuke INABA, Kazuki YAMAOKA, Atsushi IZAWA, Kazuya NAGASHIMA
  • Publication number: 20210376931
    Abstract: An optical module includes: photoelectric elements including first terminal groups; an integrated circuit including second terminal groups and ground terminals; a carrier substrate; a housing; and a common ground pad. Further, the carrier substrate is fixed to one surface of the housing, the carrier substrate includes signal wiring parts and a ground wiring part, the ground wiring part includes terminal pattern parts, a common pattern part, and a coupling part, each of the terminal pattern parts being disposed between the corresponding signal wiring parts and electrically connected with one of the ground terminals, the common pattern part being disposed on a side where the common ground pad is provided on the carrier substrate, the coupling part electrically connecting each terminal pattern part and the common pattern part, and the ground terminals of the integrated circuit are electrically connected with the common ground pad through the ground wiring part.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 2, 2021
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kazuya NAGASHIMA, Yozo ISHIKAWA, Atsushi IZAWA
  • Publication number: 20210320719
    Abstract: An optical module includes: a laser device; a wavelength detector; a modulator; a modulator driver; a coherent mixer; a photoelectric element; a transimpedance amplifier; and a casing. Further, the laser device is arranged such that the laser device outputs a laser light beam in a direction opposite to a side on which the optical output unit is arranged in the casing.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 14, 2021
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kazuya NAGASHIMA, Yozo ISHIKAWA, Atsushi IZAWA, Kazuki YAMAOKA
  • Patent number: 9729242
    Abstract: The present invention provides an optical module capable of achieving downsizing and high densification, and reducing crosstalk as compared to a conventional optical module. An optical module includes: an optical device including multiple light receiving elements; a control device which transmits and receives signals to and from the optical device; and a substrate including multiple lines which allow passage of the signals. Anode terminals of the multiple light receiving elements are connected to different lines by first wires, respectively. Cathode terminals of the multiple light receiving elements are connected to different lines by second wires, respectively. Each first wire and the corresponding second wire cross each other and are disposed out of contact with each other. The wires connecting each light receiving element and the control device, namely, the wires of each channel cross each other.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 8, 2017
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kazuya Nagashima, Yozo Ishikawa
  • Publication number: 20160218810
    Abstract: The present invention provides an optical module capable of achieving downsizing and high densification, and reducing crosstalk as compared to a conventional optical module. An optical module includes: an optical device including multiple light receiving elements; a control device which transmits and receives signals to and from the optical device; and a substrate including multiple lines which allow passage of the signals. Anode terminals of the multiple light receiving elements are connected to different lines by first wires, respectively. Cathode terminals of the multiple light receiving elements are connected to different lines by second wires, respectively. Each first wire and the corresponding second wire cross each other and are disposed out of contact with each other. The wires connecting each light receiving element and the control device, namely, the wires of each channel cross each other.
    Type: Application
    Filed: January 23, 2015
    Publication date: July 28, 2016
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kazuya NAGASHIMA, Yozo ISHIKAWA
  • Patent number: 7834955
    Abstract: A technology for effectively preventing deformation of a light reflector plate fabricated by forming a synthetic resin reflector plate into a three-dimensional shape enabling a thinner light reflector plate, and additionally, reducing processing costs is provided. An adhesive tape for shape-retention is adhered onto a reflector plate which is fabricated by forming predetermined areas of a light-reflecting plastic film or sheet into a three-dimensional shape.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: November 16, 2010
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Osamu Suzuki, Yoshiyuki Nousou, Nobuyuki Morita, Kazuya Nagashima
  • Publication number: 20070217040
    Abstract: [PROBLEMS]A technology for effectively preventing deformation of a light reflector plate fabricated by forming a synthetic resin reflector plate into a three-dimensional shape enabling a thinner light reflector plate, and additionally, reducing processing costs is provided. [MEANS FOR SOLVING PROBLEMS] An adhesive tape 10 for shape-retention is adhered onto a reflector plate 6 which is fabricated by forming predetermined areas of a light-reflecting plastic film or sheet 2 into a three-dimensional shape.
    Type: Application
    Filed: January 7, 2005
    Publication date: September 20, 2007
    Applicant: The Furukawa Electric Co., Ltd.
    Inventors: Osamu Suzuki, Yoshiyuki Nousou, Nobuyuki Morita, Kazuya Nagashima
  • Publication number: 20050270671
    Abstract: An object of the present invention is to provide a light reflector plate having the following advantages A to D: A. no need for high initial investment for dies or the like required for forming a three-dimensional shape; B. simple working and low cost of working; C. accurate shape retention of a reflector plate after bending work, and excellent dimensional stability even under severe conditions of use; and D. simple and low-cost attaching work for shape retention. To achieve the above object, according to the present invention, narrow cuts 4 are intermittently formed in a light-reflecting plastic foam film or sheet 2 along straight lines in such a manner as to penetrate from one side surface of the film or sheet 2 to the opposite side surface thereof. Subsequently the film or sheet is bent along the cuts.
    Type: Application
    Filed: October 9, 2003
    Publication date: December 8, 2005
    Applicant: THe Furukawa Electric Co
    Inventors: Yoshiyuki Nousou, Nobuyuki Morita, Kazuya Nagashima, Takaaki Kemmotsu