Patents by Inventor Ryosuke OKUI

Ryosuke OKUI 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).

  • Earth-moving machine
    Patent number: 11031684
    Abstract: A hydraulic excavator includes: a vehicular body; a cab placed on the vehicular body; and a plurality of antennas for receiving satellite positioning signals, the plurality of antennas including a main antenna and a sub-antenna. The main antenna is attached to the cab. The sub-antenna is attached to the vehicular body without the cab being interposed.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 8, 2021
    Assignee: KOMATSU LTD.
    Inventors: Takeo Yamada, Hiroshi Abe, Ryosuke Okui, Gousuke Nakashima
  • Measuring jig and hydraulic excavator calibration method
    Patent number: 10597853
    Abstract: A measuring jig is attached to an antenna support member of a revolving unit, and used to measure a slewing position of the revolving unit together with an external measurement apparatus. The measuring jig includes a prism mirror and an attachment member. The prism mirror reflects projection light from the external measurement apparatus. The attachment member attaches the prism mirror to the antenna support member. The attachment member is configured to be attached to the antenna support member by sandwiching an attached portion.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: March 24, 2020
    Assignee: KOMATSU LTD.
    Inventors: Ryosuke Okui, Takeo Yamada, Gousuke Nakashima
  • Hydraulic excavator and hydraulic excavator calibration method
    Patent number: 10422111
    Abstract: A boom is attached to a body. A boom pin supports the boom while being swingable with respect to the body. A through-hole is made in the body. The through-hole is made such that a member (for example, the boom pin or a boom angle detector) that recognizes a position of the boom pin can be observed through the through-hole from a side of a hydraulic excavator.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: September 24, 2019
    Assignee: KOMATSU LTD.
    Inventors: Takeo Yamada, Ryosuke Okui, Gousuke Nakashima
  • HYDRAULIC EXCAVATOR AND HYDRAULIC EXCAVATOR CALIBRATION METHOD
    Publication number: 20190078302
    Abstract: A boom is attached to a body. A boom pin supports the boom while being swingable with respect to the body. A through-hole is made in the body. The through-hole is made such that a member (for example, the boom pin or a boom angle detector) that recognizes a position of the boom pin can be observed through the through-hole from a side of a hydraulic excavator.
    Type: Application
    Filed: July 13, 2017
    Publication date: March 14, 2019
    Applicant: KOMATSU LTD.
    Inventors: Takeo YAMADA, Ryosuke OKUI, Gousuke NAKASHIMA
  • MEASURING JIG AND HYDRAULIC EXCAVATOR CALIBRATION METHOD
    Publication number: 20190024344
    Abstract: A measuring jig is attached to an antenna support member of a revolving unit, and used to measure a slewing position of the revolving unit together with an external measurement apparatus. The measuring jig includes a prism mirror and an attachment member. The prism mirror reflects projection light from the external measurement apparatus. The attachment member attaches the prism mirror to the antenna support member. The attachment member is configured to be attached to the antenna support member by sandwiching an attached portion.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 24, 2019
    Applicant: KOMATSU LTD.
    Inventors: Ryosuke OKUI, Takeo YAMADA, Gousuke NAKASHIMA
  • EARTH-MOVING MACHINE
    Publication number: 20190027820
    Abstract: A hydraulic excavator includes: a vehicular body; a cab placed on the vehicular body; and a plurality of antennas for receiving satellite positioning signals, the plurality of antennas including a main antenna and a sub-antenna. The main antenna is attached to the cab. The sub-antenna is attached to the vehicular body without the cab being interposed.
    Type: Application
    Filed: June 26, 2017
    Publication date: January 24, 2019
    Applicant: KOMATSU LTD.
    Inventors: Takeo YAMADA, Hiroshi ABE, Ryosuke OKUI, Gousuke NAKASHIMA