Patents by Inventor Kunihiko BITO

Kunihiko BITO 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).

  • MANIPULATOR MECHANISM AND WORKING MACHINE
    Publication number: 20230313494
    Abstract: A manipulator mechanism includes a rotary shaft rotatable about an axis extending in a first horizontal direction, an operation member disposed at one of opposite ends of the rotary shaft in an axial direction thereof to rotate together with the rotary shaft, an angle sensor disposed at the other of the opposite ends of the rotary shaft in the axial direction to detect a rotation angle of the rotary shaft, and a neutral return mechanism provided between the operation member and the angle sensor to return the operation member to a neutral position from a post-operation position which is a position to which the operation member has been moved.
    Type: Application
    Filed: June 6, 2023
    Publication date: October 5, 2023
    Applicant: KUBOTA CORPORATION
    Inventors: Hiroshi HORII, Ryohei MASUDA, Kunihiko BITO
  • Hydraulic system for work machine
    Patent number: 10378560
    Abstract: A hydraulic system for a work machine includes a first switch valve and a first return circuit. The first switch valve is switchable between a confluent position and an isolation position. The first switch valve is switched to the confluent position such that a first operation fluid tube is connected to a second operation fluid tube and a first transmission fluid tube is connected to a second transmission fluid tube. The first switch valve is switched to the isolation position such that the first operation fluid tube is disconnected from the second operation fluid tube and the first operation fluid tube is disconnected from the second operation fluid tube.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: August 13, 2019
    Assignees: KUBOTA CORPORATION, KYB CORPORATION
    Inventors: Yoshimitsu Tanaka, Kunihiko Bito, Tsukasa Haraguchi, Toshiaki Otani, Yuji Kawano, Masaru Kumatani, Junki Maeda, Shoichi Kawano, Hitoshi Iwamura, Teruo Kunizawa, Takehiro Wakasugi, Akio Matsuura
  • HYDRAULIC SYSTEM FOR WORK MACHINE
    Publication number: 20170284425
    Abstract: A hydraulic system for a work machine includes a first switch valve and a first return circuit. The first switch valve is switchable between a confluent position and an isolation position. The first switch valve is switched to the confluent position such that a first operation fluid tube is connected to a second operation fluid tube and a first transmission fluid tube is connected to a second transmission fluid tube. The first switch valve is switched to the isolation position such that the first operation fluid tube is disconnected from the second operation fluid tube and the first operation fluid tube is disconnected from the second operation fluid tube.
    Type: Application
    Filed: December 27, 2016
    Publication date: October 5, 2017
    Applicant: KUBOTA CORPORATION
    Inventors: Yoshimitsu TANAKA, Kunihiko BITO, Tsukasa HARAGUCHI, Toshiaki OTANI, Yuji KAWANO, Masaru KUMATANI, Junki MAEDA, Shoichi KAWANO, Hitoshi IWAMURA, Teruo KUNIZAWA, Takehiro WAKASUGI