Patents by Inventor Tetsuya Tatara

Tetsuya Tatara 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).

  • Motor with a chucking device for detachably holding a disk and disk drive apparatus equipped with the same
    Patent number: 8032902
    Abstract: In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted. The center case has a cylindrical portion coaxial with the center axis, a cover portion for covering an axial upper side of the cylindrical portion of the center case and a base portion fixed to the shaft-fixed portion of the rotor holder; resilient members received within the center case; and claw members remaining in contact with the respective resilient members, the claw members being movable radially to hold the disk in place. The center case is spaced apart from the rotor holder except for the base portion contacting with the shaft-fixed portion of the rotor holder.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: October 4, 2011
    Assignee: Nidec Corporation
    Inventors: Hitoshi Takaki, Yusuke Iwai, Satoru Kuramoto, Tetsuya Tatara