Patents by Inventor Shuto YAKUBO

Shuto YAKUBO 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).

  • Compressor and method of operating same
    Patent number: 11371534
    Abstract: Provided is a compressor including: a compressor body that has a motor and compresses air; an aftercooler for cooling the compressed air supplied from the compressor body; a dryer for dehumidifying the compressed air flowing out from the aftercooler; a drain discharge valve for discharging a drain from the dryer; a first pressure sensor for measuring air pressure downstream of the aftercooler; and a control device having a rotation-speed adjusting unit that drives the motor at second acceleration smaller than first acceleration, the first acceleration being rated acceleration of the motor, when a pressure value measured by the first pressure sensor is less than a first threshold value predetermined at startup of the motor.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 28, 2022
    Assignee: KOBELCO COMPRESSORS CORPORATION
    Inventors: Katsunori Hamada, Shuto Yakubo, Akira Hoshikawa
  • COMPRESSOR AND METHOD OF OPERATING SAME
    Publication number: 20210222706
    Abstract: Provided is a compressor including: a compressor body that has a motor and compresses air; an aftercooler for cooling the compressed air supplied from the compressor body; a dryer for dehumidifying the compressed air flowing out from the aftercooler; a drain discharge valve for discharging a drain from the dryer; a first pressure sensor for measuring air pressure downstream of the aftercooler; and a control device having a rotation-speed adjusting unit that drives the motor at second acceleration smaller than first acceleration, the first acceleration being rated acceleration of the motor, when a pressure value measured by the first pressure sensor is less than a first threshold value predetermined at startup of the motor.
    Type: Application
    Filed: July 3, 2019
    Publication date: July 22, 2021
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Katsunori HAMADA, Shuto YAKUBO, Akira HOSHIKAWA