Patents by Inventor Shintaro TAKEUCHI

Shintaro TAKEUCHI 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: 20150253582
    Abstract: A polarization combiner includes: a base member that includes a body portion, an arm portion extending from the body portion, and a notch portion surrounded with the body portion and the arm portion; a polarization rotating element that is fixed to the arm portion of the base member and that rotates a polarization direction of a first polarized wave; and a polarization combining element that is fixed to the base member so as to face the notch portion of the base member and the polarization rotating element, the polarization combining element combining two polarized waves entering from a surface facing the notch portion and the polarization rotating element, the two polarized waves including the first polarized wave whose polarization direction is rotated by the polarization rotating element and a second polarized wave passing the notch portion.
    Type: Application
    Filed: February 9, 2015
    Publication date: September 10, 2015
    Applicant: Fujitsu Optical Components Limited
    Inventors: Seimi SASAKI, Kohei SHIBATA, Teruhiro KUBO, Shinji MARUYAMA, Shintaro TAKEUCHI, Hiroshi KATO, Takehito TANAKA
  • Publication number: 20150253595
    Abstract: An optical module connected to an optical fiber for transmitting light includes: a substrate; a ferrule that is formed from a material capable of transmitting therethrough light having a predetermined wavelength, accommodates an end of the optical fiber, and is fixed on the substrate with a fixing agent cured by being irradiated with the light capable of passing through the material; and a semiconductor chip that is disposed on the substrate and modulates light emitted from the end of the optical fiber accommodated in the ferrule.
    Type: Application
    Filed: February 24, 2015
    Publication date: September 10, 2015
    Applicant: Fujitsu Optical Components Limited
    Inventors: Kohei Shibata, Seimi Sasaki, Teruhiro Kubo, Shinji Maruyama, Shintaro Takeuchi, Hiroshi Kato, Takehito Tanaka
  • Publication number: 20150139667
    Abstract: An optical receiver circuit includes a polarization beam splitter configured to split input signal light into two different polarized wave components; two variable optical attenuators configured to respectively adjust attenuation of and output the signal light split by the polarization beam splitter according to polarization state; and a single planar optical waveguide on which the polarization beam splitter and the two variable optical attenuators are disposed.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Shintaro TAKEUCHI, Takehito TANAKA