Patents by Inventor Katsuki TAKEUCHI

Katsuki TAKEUCHI 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).

  • Electric tool
    Patent number: 11518012
    Abstract: An electric tool includes a motor, an operation part provided to be operable by a user, a motor drive control unit configured to perform control of driving the motor in response to the operation part being operated, a temperature sensor, and a temperature determination unit configured to determine overheating of the motor. The temperature determination unit is configured to estimate a temperature of the motor based on a drive situation of the motor and a detection result of the temperature sensor, and to determine the overheating of the motor based on the estimated temperature.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 6, 2022
    Assignee: MAX CO., LTD.
    Inventors: Katsuki Takeuchi, Kohei Suto, Teruaki Ando
  • Air compressor
    Patent number: 10690130
    Abstract: An air compressor includes a tank unit, a compressed air generating unit, a motor unit, a driving current generating unit, a control unit and a temperature detecting unit. The tank unit stores a compressed air. The compressed air generating unit generates the compressed air to be stored in the tank unit. The motor unit drives the compressed air generating unit. The driving current generating unit generates a driving current of the motor unit. The control unit drives the motor unit by controlling the driving current generating unit. The temperature detecting unit detects a temperature of the driving current generating unit. The control unit changes the driving current of the motor unit by controlling the driving current generating unit based on the temperature detected by the temperature detecting unit.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: June 23, 2020
    Assignee: MAX CO., LTD.
    Inventors: Katsuki Takeuchi, Shinichi Ohkubo
  • ELECTRIC TOOL
    Publication number: 20200130156
    Abstract: An electric tool includes a motor, an operation part provided to be operable by a user, a motor drive control unit configured to perform control of driving the motor in response to the operation part being operated, a temperature sensor, and a temperature determination unit configured to determine overheating of the motor. The temperature determination unit is configured to estimate a temperature of the motor based on a drive situation of the motor and a detection result of the temperature sensor, and to determine the overheating of the motor based on the estimated temperature.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Applicant: MAX CO., LTD.
    Inventors: Katsuki TAKEUCHI, Kohei SUTO, Teruaki ANDO
  • AIR COMPRESSOR
    Publication number: 20170037844
    Abstract: An air compressor includes a tank unit, a compressed air generating unit, a motor unit, a driving current generating unit, a control unit and a temperature detecting unit. The tank unit stores a compressed air. The compressed air generating unit generates the compressed air to be stored in the tank unit. The motor unit drives the compressed air generating unit. The driving current generating unit generates a driving current of the motor unit. The control unit drives the motor unit by controlling the driving current generating unit. The temperature detecting unit detects a temperature of the driving current generating unit. The control unit changes the driving current of the motor unit by controlling the driving current generating unit based on the temperature detected by the temperature detecting unit.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 9, 2017
    Inventors: Katsuki TAKEUCHI, Shinichi OHKUBO