Patents by Inventor Takuya Kakegawa

Takuya Kakegawa 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).

  • Disk edge polishing machine and disk edge polishing system
    Patent number: 6319100
    Abstract: The disk edge polishing machine is capable of polishing an inner edge of a center hole of a disk and an outer edge thereof. In the disk edge polishing machine, a sucking member has a cylindrical end section. The sucking member sucks the disk by the cylindrical end section and exposes the inner edge and the outer edge of the disk. The sucking member spins together with the disk. An outer polishing member polishes the outer edge of the disk. An inner polishing member is inserted into the center hole and simultaneously polishes the inner edge of the disk. A first driving mechanism relatively moves the outer polishing member and the sucking member close to and away from the outer edge of the disk along a predetermined course. A second driving mechanism relatively moves the inner polishing member and the sucking member close to and away from the inner edge of the disk along another predetermined course extended from the predetermined course.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: November 20, 2001
    Assignee: Fujikoshi Kikai Kogyo Kabushiki Kaisha
    Inventors: Yasuhide Denda, Satoru Kitta, Kiyokazu Gonda, Yoshio Nakamura, Yoshio Otsuka, Toshiaki Seki, Takuya Kakegawa, Atsushi Kajikura