Patents by Inventor Hiroko Itoh

Hiroko Itoh 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).

  • Patent number: 11469682
    Abstract: This semiconductor device is provided with: a substrate which has, on a principal surface thereof, an input unit for inputting an alternating current power from the exterior, a ground connection unit for connecting to ground formed on the exterior, an output unit for outputting a post-adjustment direct current power to the exterior, and a semiconductor layer; a first Schottky barrier diode formed in a first region of the semiconductor layer so that a cathode electrode is connected to the input unit and so that an anode electrode is connected to the ground connection unit; a second Schottky barrier diode formed in a second region of the semiconductor layer so that a cathode electrode is connected to the output unit and so that an anode electrode is connected to the input unit; and a third Schottky barrier diode formed in a third region of the semiconductor layer so that a cathode electrode is connected to the output unit and so that an anode electrode is connected to the ground connection unit.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 11, 2022
    Assignee: LASER SYSTEMS INC.
    Inventors: Yasuo Ohno, Hiroko Itoh
  • Patent number: 11171572
    Abstract: A microwave-rectifying circuit for rectifying AC power is equipped with: an input line into which AC power is inputted; multiple branch lines which branch off from the branching point on the output side of the input line into n lines; rectifiers which rectify the AC power flowing through the branch lines and are positioned in each of the multiple branch lines; and phase shift units which are provided upstream from the rectifier in at least n?1 branch lines among the multiple branch lines, and shift the phase of the AC power in a manner such that relative to the AC power which flows through one branch line and arrives at the corresponding rectifier, the AC power which flows through each of the other n?1 branch lines and arrives at the corresponding rectifier exhibits a phase difference of k×180/n°.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 9, 2021
    Assignee: LASER SYSTEMS INC.
    Inventors: Yasuo Ohno, Hiroko Itoh
  • Publication number: 20200259423
    Abstract: A microwave-rectifying circuit for rectifying AC power is equipped with: an input line into which AC power is inputted; multiple branch lines which branch off from the branching point on the output side of the input line into n lines; rectifiers which rectify the AC power flowing through the branch lines and are positioned in each of the multiple branch lines; and phase shift units which are provided upstream from the rectifier in at least n?1 branch lines among the multiple branch lines, and shift the phase of the AC power in a manner such that relative to the AC power which flows through one branch line and arrives at the corresponding rectifier, the AC power which flows through each of the other n?1 branch lines and arrives at the corresponding rectifier exhibits a phase difference of k×180/n°.
    Type: Application
    Filed: August 3, 2018
    Publication date: August 13, 2020
    Inventors: Yasuo OHNO, Hiroko ITOH
  • Publication number: 20200177095
    Abstract: This semiconductor device is provided with: a substrate which has, on a principal surface thereof, an input unit for inputting an alternating current power from the exterior, a ground connection unit for connecting to ground formed on the exterior, an output unit for outputting a post-adjustment direct current power to the exterior, and a semiconductor layer; a first Schottky barrier diode formed in a first region of the semiconductor layer so that a cathode electrode is connected to the input unit and so that an anode electrode is connected to the ground connection unit; a second Schottky barrier diode formed in a second region of the semiconductor layer so that a cathode electrode is connected to the output unit and so that an anode electrode is connected to the input unit; and a third Schottky barrier diode formed in a third region of the semiconductor layer so that a cathode electrode is connected to the output unit and so that an anode electrode is connected to the ground connection unit.
    Type: Application
    Filed: July 27, 2018
    Publication date: June 4, 2020
    Inventors: Yasuo OHNO, Hiroko ITOH
  • Patent number: 9308229
    Abstract: A method of inhibiting angiogenesis by applying a kind of protein polysaccharide of a (1?6)-?-D-glucan obtained from a residue of extraction of crushed dried fruiting body of Agaricus blazei Murill (himematsutake) with 80% ethanol aqueous solution and hot water at 100 degrees C.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: April 12, 2016
    Assignees: Powerful Healthy Food Corporation, Sun Chlorella Corp.
    Inventors: Hitoshi Ito, Hiroko Itoh, Masaki Fujishima, Yukari Arakawa, Fukuyoshi Nakada
  • Publication number: 20150359829
    Abstract: A method of inhibiting angiogenesis by applying a kind of protein polysaccharide of a (1?6)-?-D-glucan obtained from a residue of extraction of crushed dried fruiting body of Agaricus blazei Murill (himematsutake) with 80% ethanol aqueous solution and hot water at 100 degrees C.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: Hitoshi ITO, Hiroko ITOH, Masaki FUJISHIMA, Yukari ARAKAWA, Fukuyoshi NAKADA
  • Publication number: 20130345137
    Abstract: A method of inhibiting angiogenesis by applying a protein polysaccharide of a (1?6)-?-D-glucan with a glucan:protein ratio of 55:43 [w/w], obtained by extracting with a 5 w % aqueous solution of sodium hydroxide a residue of extraction and removal of water-soluble polysaccharides from the Agaricus blazei Murill (himematsutake) fruiting body, and a food/beverage composition for angiogenesis inhibition containing the protein polysaccharide of (1?6)-?-D-glucan.
    Type: Application
    Filed: February 6, 2013
    Publication date: December 26, 2013
    Applicants: SUN CHLORELLA CORP., Powerful Healthy Food Corporation
    Inventors: Hitoshi ITO, Hiroko ITOH, Masaki FUJISHIMA, Yukari ARAKAWA, Fukuyoshi NAKADA
  • Patent number: 5663676
    Abstract: A series of first and second operational amplifier circuits form a low-pass filter together with capacitors, and a current controlling circuit is responsive to a frequency control signal representative of a target cut-off frequency of the filter and a quality factor control signal representative of a target quality factor so as to respectively supply first and second controlling currents to the first and second operational amplifiers, thereby independently controlling the cut-off frequency and the quality factor with the frequency control signal and the quality factor control signal.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 2, 1997
    Assignee: NEC Corporation
    Inventor: Hiroko Itoh
  • Patent number: 4651351
    Abstract: A glove for escapement is disclosed, which is used for escapement along a rope at the time of occurrence of a fire or an earthquake. The glove comprises a glove body, a base member mounted on the palm side of the glove body and provided on the inner side with teeth, and a wing member having one edge pivoted to the base member and provided on the inner side with teeth capable of meshing with the teeth of the base member. The rope thus can be clamped in a meandering fashion between the teeth, and the user can smoothly slide down along the rope by reducing the clamping force applied to the rope.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: March 24, 1987
    Inventors: Shigeharu Endo, Kazuma Endo, Kazuya Endo, Hiroko Itoh