Patents by Inventor Yoshifuru OKADA

Yoshifuru OKADA 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).

  • Publication number: 20250020120
    Abstract: A service life determining system for determining a service life of a hydraulic pump driven by a prime mover includes pump control circuitry. The pump control circuitry calculates, each time a predetermined period has elapsed, an equivalent operating time of the hydraulic pump in the predetermined period based on an actual operating time of the prime mover in the predetermined period, a change in a rotation speed of the prime mover in the predetermined period, a change in a delivery pressure of the hydraulic pump in the predetermined period, and a change in a temperature of a hydraulic liquid in the predetermined period.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 16, 2025
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Akihiro KONDO, Yoshifuru OKADA, Hiroyasu KODERA
  • Publication number: 20240426284
    Abstract: This cylinder block includes: a cylinder block body in which a plurality of cylinder chambers are formed around a rotating shaft; a plurality of first detected portions formed on the outer peripheral surface of the cylinder block body and circumferentially spaced apart from each other at a predetermined first distance; and one or more second detected portions formed on the outer peripheral surface of the cylinder block body and each circumferentially spaced apart from an adjacent one of the plurality of first detected portions at a second distance different from the first distance.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 26, 2024
    Inventors: Akihiro KONDO, Yoshifuru OKADA, Hiroyasu KODERA