Patents by Inventor Kazuya Miyamori

Kazuya Miyamori 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).

  • HYDRAULIC CIRCUIT FOR A CONSTRUCTION MACHINE
    Publication number: 20230407597
    Abstract: Provide a hydraulic circuit that can prevent damage to the oil cooler while suppressing excessive rise in the temperature of the operating oil.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 21, 2023
    Applicant: Caterpillar SARL
    Inventors: Isao KONISHI, Hiroshi MAEDA, Hirotaka MINAMIURA, Kazuya MIYAMORI, Yoshitaka KATO
  • Hydraulic circuit for a construction machine
    Patent number: 11781287
    Abstract: Problem to be solved: To provide a hydraulic circuit for the construction machine which enables to use the relief valve of low capacity in the work tool circuit. Solution: The hydraulic circuit 2 for a construction machine has: a hydraulic pump 4 of variable capacity, a work tool 6 operated by hydraulic oil delivered by the hydraulic pump 4, a work tool operating device 10 to output a signal for operating the work tool 6, a control valve 14 allowing the hydraulic pump 4 to supply the hydraulic oil to the work tool 6 based on the signal output from the work tool operating device 10, a tool's relief valve 44 to release the hydraulic oil flowing between the control valve 14 and the work tool 6, a pressure sensor 46 to detect a pressure of hydraulic oil flowing into the work tool 6, and a controller 48 to reduce a delivery rate from the hydraulic pump 4 when the pressure detected by the pressure sensor 46 exceeds a predetermined value.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: October 10, 2023
    Assignee: Caterpillar SARL
    Inventors: Isao Konishi, Genta Mine, Yuya Kanenawa, Shinya Ohmura, Sei Shimahara, Kazuya Miyamori
  • Hydraulic Circuit for a Construction Machine
    Publication number: 20230131384
    Abstract: Problem to be solved: To provide a hydraulic circuit for the construction machine which enables to use the relief valve of low capacity in the work tool circuit. Solution: The hydraulic circuit 2 for a construction machine has: a hydraulic pump 4 of variable capacity, a work tool 6 operated by hydraulic oil delivered by the hydraulic pump 4, a work tool operating device 10 to output a signal for operating the work tool 6, a control valve 14 allowing the hydraulic pump 4 to supply the hydraulic oil to the work tool 6 based on the signal output from the work tool operating device 10, a tool's relief valve 44 to release the hydraulic oil flowing between the control valve 14 and the work tool 6, a pressure sensor 46 to detect a pressure of hydraulic oil flowing into the work tool 6, and a controller 48 to reduce a delivery rate from the hydraulic pump 4 when the pressure detected by the pressure sensor 46 exceeds a predetermined value.
    Type: Application
    Filed: October 26, 2022
    Publication date: April 27, 2023
    Applicant: Caterpillar SARL
    Inventors: Isao Konishi, Genta Mine, Yuya Kanenawa, Shinya Ohmura, Sei Shimahara, Kazuya Miyamori