Patents by Inventor Sachiko MIZUSEKI

Sachiko MIZUSEKI 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: 20200292768
    Abstract: An optical module for transmitting an optical signal may include a circuit board on which electronic components are disposed, a high-frequency component that is disposed on a main surface of the circuit board and operates at a frequency equal to or higher than a predetermined reference value according to a frequency of the optical signal, a low-frequency component that is disposed on another main surface of the circuit board so as to overlap at least partly with the high-frequency component in a plan view and operates at a frequency less than the reference value, and an electromagnetic wave absorber that is disposed on an upper surface of the low-frequency component.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 17, 2020
    Inventors: Sachiko MIZUSEKI, Hideki SATO
  • Patent number: 10042133
    Abstract: A first conductive layer includes a first signal wiring including, at a position except for an end portion, a wide portion having a width wider than that of the other portion. A second conductive layer includes a signal electrode electrically continuous with the end portion of the first signal wiring, a first ground plane overlapping the wide portion, and a ground terminal. A third conductive layer includes a second signal wiring including an end portion overlapping and bonded to the signal electrode, and a ground electrode overlapping and bonded to the ground terminal. A fourth conductive layer includes a second ground plane. The second ground plane includes a through hole overlapping the end portion of the second signal wiring. A fifth conductive layer includes a third groundplane. The third groundplane overlaps the end portion of the second signal wiring inside the through hole.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: August 7, 2018
    Assignee: Oclaro Japan, Inc.
    Inventors: Daisuke Noguchi, Sachiko Mizuseki, Norimichi Shibuya, Hiroshi Yamamoto
  • Publication number: 20170139160
    Abstract: A first conductive layer includes a first signal wiring including, at a position except for an end portion, a wide portion having a width wider than that of the other portion. A second conductive layer includes a signal electrode electrically continuous with the end portion of the first signal wiring, a first ground plane overlapping the wide portion, and a ground terminal. A third conductive layer includes a second signal wiring including an end portion overlapping and bonded to the signal electrode, and a ground electrode overlapping and bonded to the ground terminal. A fourth conductive layer includes a second ground plane. The second ground plane includes a through hole overlapping the end portion of the second signal wiring. A fifth conductive layer includes a third groundplane. The third groundplane overlaps the end portion of the second signal wiring inside the through hole.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 18, 2017
    Inventors: Daisuke NOGUCHI, Sachiko MIZUSEKI, Norimichi SHIBUYA, Hiroshi YAMAMOTO
  • Patent number: 9184557
    Abstract: Provided is an optical module in which a temperature of a semiconductor element to be subjected to temperature control is controlled to fall within a desired operating temperature range regardless of whether an environmental temperature is outside or inside the operating temperature range of the semiconductor element, and which is stably operated with low power consumption. A control section 30 determines, based on the environmental temperature having a temperature range of from a first temperature to a second temperature, a target temperature from a predetermined operating temperature range of from a third temperature to a fourth temperature. The control unit 30, an ATC circuit 34, a TEC control IC 12, and a TEC 24 control the temperature of a laser module 20 to become the target temperature. The first temperature is lower than the third temperature, and the second temperature is higher than the fourth temperature.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: November 10, 2015
    Assignee: OCLARO JAPAN, INC.
    Inventors: Sachiko Mizuseki, Yusuke Nishida, Genki Yasuda
  • Publication number: 20140079083
    Abstract: Provided is an optical module in which a temperature of a semiconductor element to be subjected to temperature control is controlled to fall within a desired operating temperature range regardless of whether an environmental temperature is outside or inside the operating temperature range of the semiconductor element, and which is stably operated with low power consumption. A control section 30 determines, based on the environmental temperature having a temperature range of from a first temperature to a second temperature, a target temperature from a predetermined operating temperature range of from a third temperature to a fourth temperature. The control unit 30, an ATC circuit 34, a TEC control IC 12, and a TEC 24 control the temperature of a laser module 20 to become the target temperature. The first temperature is lower than the third temperature, and the second temperature is higher than the fourth temperature.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: OCLARO JAPAN, INC.
    Inventors: Sachiko MIZUSEKI, Yusuke NISHIDA, Genki YASUDA