Patents by Inventor Yusuke Ezawa

Yusuke Ezawa 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: 10908193
    Abstract: A zero cross detection circuit has a first comparator circuit receiving a first input signal and a second input signal and outputting a first comparison result, a second comparator circuit having a hysteresis function, receiving the first input signal and the second input signal, and outputting a second comparison result, a power supply voltage detection circuit outputting a detection signal when a power supply voltage to be supplied becomes equal to or larger than a predetermined voltage, and a logic circuit outputting a zero cross detection signal based on the first comparison result, the second comparison result, and the detection signal.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: February 2, 2021
    Assignee: ABLIC INC.
    Inventors: Minoru Ariyama, Tomohiro Oka, Yusuke Ezawa
  • Publication number: 20190324066
    Abstract: A zero cross detection circuit has a first comparator circuit receiving a first input signal and a second input signal and outputting a first comparison result, a second comparator circuit having a hysteresis function, receiving the first input signal and the second input signal, and outputting a second comparison result, a power supply voltage detection circuit outputting a detection signal when a power supply voltage to be supplied becomes equal to or larger than a predetermined voltage, and a logic circuit outputting a zero cross detection signal based on the first comparison result, the second comparison result, and the detection signal.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 24, 2019
    Inventors: Minoru ARIYAMA, Tomohiro OKA, Yusuke EZAWA
  • Patent number: 8965081
    Abstract: A method for acquiring hair characteristic data includes an image acquiring step and a data acquiring step. The image acquiring step acquires a cross-sectional image of a human hair 50, in which plural types of fibrous tissues (ortho cell 52a, para cell 52b) constituting cortex cells 52 contained in the human hair 50 are visualized so as to be distinguishable from each other. The data acquiring step acquires numerical information indicating a distribution state of the visualized plural types of fibrous tissues (ortho cell 52a, para cell 52b) from the cross-sectional image.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: February 24, 2015
    Assignee: Kao Corporation
    Inventors: Shinobu Nagase, Yusuke Ezawa, Akira Mamada
  • Publication number: 20120128220
    Abstract: A method for acquiring hair characteristic data includes an image acquiring step and a data acquiring step. The image acquiring step acquires a cross-sectional image of a human hair 50, in which plural types of fibrous tissues (ortho cell 52a, para cell 52b) constituting cortex cells 52 contained in the human hair 50 are visualized so as to be distinguishable from each other. The data acquiring step acquires numerical information indicating a distribution state of the visualized plural types of fibrous tissues (ortho cell 52a, para cell 52b) from the cross-sectional image.
    Type: Application
    Filed: July 23, 2010
    Publication date: May 24, 2012
    Applicant: KAO CORPORATION
    Inventors: Shinobu Nagase, Yusuke Ezawa, Akira Mamada