Patents by Inventor Yukie IGA

Yukie IGA 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).

  • WAVELENGTH FILTER AND LASER APPARATUS
    Publication number: 20230035193
    Abstract: A wavelength filter includes a first filter circuit and a second filter circuit. The first filter circuit that has a passband that is obtained from a vernier effect by connecting, in series, a plurality of ring resonators each having a different transmission wavelength interval and that is within a gain band of an optical amplifier, and that passes, from the gain band, light at a selected wavelength and light that has a wavelength in a recursive mode and that is produced on a short wavelength side or a long wavelength side of the selected wavelength. The second filter circuit is connected to the first filter circuit in series and suppresses the light at the wavelength in the recursive mode from the light passing through the first filter circuit.
    Type: Application
    Filed: June 21, 2022
    Publication date: February 2, 2023
    Applicant: Fujitsu Optical Components Limited
    Inventors: Yukie Iga, Hirotomo Izumi, Kazumasa Takabayashi, Suguru Akiyama
  • Photoreceiving device
    Patent number: 8471349
    Abstract: The wiring arrangement length in a photoreceiving device is shortened. The photoreceiving device includes an amplifier for amplifying an output of the photoreceiving element and a photoreceiving element and they are mounted at a base member. A plurality of first bonding pads and a plurality of second bonding pads for connection to power supply are provided at both sides of a transmission path of an input or output signal of a photoreceiving element. Furthermore, at a position other than the parts arrangement surface of the base member, a plurality of first bonding pads are electrically connected to a plurality of second bonding pads.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: June 25, 2013
    Assignee: Fujitsu Optical Components Limited
    Inventors: Yukie Iga, Yasuhiro Yamauchi
  • PHOTORECEIVING DEVICE
    Publication number: 20110186954
    Abstract: The wiring arrangement length in a photoreceiving device is shortened. The photoreceiving device includes an amplifier for amplifying an output of the photoreceiving element and a photoreceiving element and they are mounted at a base member. A plurality of first bonding pads and a plurality of second bonding pads for connection to power supply are provided at both sides of a transmission path of an input or output signal of a photoreceiving element. Furthermore, at a position other than the parts arrangement surface of the base member, a plurality of first bonding pads are electrically connected to a plurality of second bonding pads.
    Type: Application
    Filed: January 11, 2011
    Publication date: August 4, 2011
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Yukie IGA, Yasuhiro Yamauchi