Patents by Inventor Chikato Ishitobi

Chikato Ishitobi 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).

  • DEGRADATION DETECTION SYSTEM
    Publication number: 20210216609
    Abstract: There are included a normal model building unit that builds a normal model of another device on the basis of normal data of the other device; a degradation determination model building unit that builds a degradation determination model of the other device on the basis of the normal data and degradation data of the other device; a normal model rebuilding unit that builds a normal model of a target device on the basis of the normal model of the other device and normal data of the target device; a degradation determination model rebuilding unit that builds a degradation determination model of the target device on the basis of the degradation determination model of the other device and the normal model of the target device; and a degradation determining unit that determines degradation of the target device on the basis of operation data of the target device and the degradation determination model of the target device.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuichi WAKABAYASHI, Koji WAKIMOTO, Izumi OTSUKA, Chikato ISHITOBI, Takehisa HARAGUCHI
  • Dynamic braking apparatus for a motor
    Patent number: 4990837
    Abstract: A control apparatus for a motor including m number of stator windings and a relay having m-1 contacts, thereby allowing the control apparatus to be simplified in its structure so that the control apparatus can be constructed at a low cost.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: February 5, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Chikato Ishitobi
  • Gas circuit breaker
    Patent number: 4450329
    Abstract: A gas circuit breaker is improved in arc-extinguishing effectiveness by introducing flow stabilizing and heat absorbing projections into a pressurized chamber of the device adjacent the arc generating structure.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: May 22, 1984
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Satomi Arimoto, Shigeru Yamaji, Chikato Ishitobi