Patents by Inventor Kazuki YAMAOKA

Kazuki YAMAOKA 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: 20190312414
    Abstract: A disclosed semiconductor laser module includes a semiconductor laser device; a waveguide optical function device that has an incidence end on which laser light emitted from the semiconductor laser device is incident and that guides the incident light; and a protrusion that is provided on an extension line of a light path of the laser light emitted from the semiconductor laser device, the extension line extending beyond the incidence end.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 10, 2019
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Maiko Ariga, Yusuke Inaba, Kazuki Yamaoka, Toshio Sugaya
  • Publication number: 20190296524
    Abstract: A disclosed semiconductor laser module includes a semiconductor laser device; a semiconductor optical amplifier configured to receive laser light emitted from the semiconductor laser device and amplify the laser light that has been received; and a first light receiving device that measures an intensity of a part of the laser light emitted from the semiconductor laser device, for monitoring a wavelength of the laser light, wherein the semiconductor optical amplifier is located rearward in relation to a light receiving surface of the first light receiving device along a propagation direction of the laser light emitted from the semiconductor device.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Maiko ARIGA, Yusuke INABA, Kazuki YAMAOKA
  • Publication number: 20180335593
    Abstract: A non-plated region is formed in a certain range from an end of a submount. The non-plated region is a portion where a plating layer is not provided, and thus a substrate of the submount is exposed. An intermediate layer is formed on the plating layer. Furthermore, a plating layer is formed on the intermediate layer. A semiconductor laser is formed on the plating layer. The position of an end of the semiconductor laser substantially coincides with the position of an end of the plating layer (the intermediate layer). That is, even in a case where there is a deviation between an end face of the intermediate layer and an end face of the semiconductor laser, the amount of this deviation is sufficiently smaller than the amount by which the intermediate layer is set back from an end face of the submount.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 22, 2018
    Inventors: Masakazu Miura, Jun Miyokawa, Kazuki Yamaoka, Hajime Mori
  • Publication number: 20180138657
    Abstract: A semiconductor laser module includes a semiconductor laser that outputs laser light; an optical fiber that guides the laser light; a lens that couples the laser light, which is output from the semiconductor laser, with the optical fiber; a base that is substantially tabular in shape and that has the semiconductor laser, the optical fiber, and the lens fixed thereon either directly or indirectly; and a housing which houses the base and fixes the base either directly or indirectly. Among faces of the base, a face on a side that is fixed either directly or indirectly to the housing includes a junction plane that is joined to the housing either directly or indirectly, and a detachment plane that is detached to remain unfixed from the housing.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masakazu MIURA, Jun MIYOKAWA, Kazuki YAMAOKA, Toshio KIMURA
  • Publication number: 20170139161
    Abstract: An optical fiber fixing structure includes: a cylindrical member; an optical fiber inserted into a hole of the cylindrical member; and a fixing material configured to fix the cylindrical member and the optical fiber, wherein the optical fiber is a polarization maintaining optical fiber having a polarization axis, and a center of the optical fiber is arranged so as to be eccentric to a center of the hole, and an angle formed by an eccentric direction connecting the center of the hole and the center of the optical fiber and the polarization axis is ?22.5° to 22.5°, or 67.5° to 112.5°.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 18, 2017
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kazuki YAMAOKA, Jun MIYOKAWA, Masakazu MIURA, Toshio KIMURA