Patents by Inventor Yoshimi Saruta

Yoshimi Saruta 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).

  • Fixing device for workpiece in machine tool and machine tool having the fixing device
    Patent number: 9296047
    Abstract: Wear of a sliding member is prevented or controlled in a portion of the sliding member at a specific angular position (phase) about an axis. A fixing device includes a chuck-actuating claw which rotates with a main spindle, and is displaced to open and close a chuck section, a rubber ring which rotates with the main spindle, and a bobbin (sliding member) which is provided to be movable between a first position and a second position along an axis direction of the main spindle, rotates with the rubber ring in contact with the rubber ring in the first position, rotates with the chuck-actuating claw while displacing the chuck-actuating claw in contact with the chuck-actuating claw in the second position, and does not have contact with both of the rubber ring and the chuck-actuating claw in a partial range between the first position and the second position.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: March 29, 2016
    Assignees: CITIZEN HOLDINGS CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Yoshinobu Kishi, Tetsuya Takise, Akinobu Kanda, Yoshimi Saruta
  • FIXING DEVICE FOR WORKPIECE IN MACHINE TOOL AND MACHINE TOOL HAVING THE FIXING DEVICE
    Publication number: 20130249174
    Abstract: Wear of a sliding member is prevented or controlled in a portion of the sliding member at a specific angular position (phase) about an axis. A fixing device includes a chuck-actuating claw which rotates with a main spindle, and is displaced to open and close a chuck section, a rubber ring which rotates with the main spindle, and a bobbin (sliding member) which is provided to be movable between a first position and a second position along an axis direction of the main spindle, rotates with the rubber ring in contact with the rubber ring in the first position, rotates with the chuck-actuating claw while displacing the chuck-actuating claw in contact with the chuck-actuating claw in the second position, and does not have contact with both of the rubber ring and the chuck-actuating claw in a partial range between the first position and the second position.
    Type: Application
    Filed: November 14, 2011
    Publication date: September 26, 2013
    Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Yoshinobu Kishi, Tetsuya Takise, Akinobu Kanda, Yoshimi Saruta