Patents by Inventor Ryunosuke Tsunenoki

Ryunosuke Tsunenoki 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).

  • Cylindrical cutting blade and cutter head assembly which carries the cutting blade
    Patent number: 6540446
    Abstract: A cutter head assembly including: (a) a main body which has a cutting-blade receiving bore and a clamping-member receiving bore partially interfering with the cutting-blade receiving bore; (b) a cutting blade received in the cutting-blade receiving bore and having a flat surface as a part of an outer circumferential surface thereof and parallel to an axis of the cutting blade; and (c) a cylindrical clamping member received in the clamping-member receiving bore and having a fitting portion and a cam portion. The cylindrical clamping member is fitted at the fitting portion in the clamping-member receiving bore. The cam portion has a cam surface whose radial distance from an axis of the fitting portion changes in a circumferential direction of the cylindrical clamping member.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: April 1, 2003
    Assignee: Yutaka Seimitsu Kogyo, Ltd.
    Inventors: Tsunesuke Iizuka, Junichi Moriyama, Ryunosuke Tsunenoki
  • Cylindrical cutting blade and cutter head assembly which carries the cutting blade
    Publication number: 20010028831
    Abstract: A cutter head assembly including: (a) a main body which has a cutting-blade receiving bore and a clamping-member receiving bore partially interfering with the cutting-blade receiving bore; (b) a cutting blade received in the cutting-blade receiving bore and having a flat surface as a part of an outer circumferential surface thereof and parallel to an axis of the cutting blade; and (c) a cylindrical clamping member received in the clamping-member receiving bore and having a fitting portion and a cam portion. The cylindrical clamping member is fitted at the fitting portion in the clamping-member receiving bore. The cam portion has a cam surface whose radial distance from an axis of the fitting portion changes in a circumferential direction of the cylindrical clamping member.
    Type: Application
    Filed: April 2, 2001
    Publication date: October 11, 2001
    Applicant: YUTAKA SEIMITSU KOGYO, LTD
    Inventors: Tsunesuke Iizuka, Junichi Moriyama, Ryunosuke Tsunenoki