Patents by Inventor Ryoji Itaoka

Ryoji Itaoka 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).

  • Patent number: 7661183
    Abstract: A blade changing tool for use in a cutting device including a chuck table for holding a workpiece and a cutting device including a blade mount for rotatably supporting a cutting blade for cutting the workpiece held by the chuck table. The blade changing tool includes a C-shaped elastic cylindrical body including a cutout formed by cutting out a part of a circular cylinder, a holding groove formed on the inner circumferential surface of the cylindrical body at one end portion thereof and adapted to surround a circular hub of the cutting blade, and a grip portion adapted to be gripped by an operator for making a change from an inoperative condition where the circular hub of the cutting blade is surrounded by the inner circumference of the cylindrical body to an operative condition where the circular hub is held by the inner circumference of the cylindrical body.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: February 16, 2010
    Assignee: Disco Corporation
    Inventors: Yusaku Tomooka, Kiwato Ohmoto, Ryoji Itaoka
  • Publication number: 20080313875
    Abstract: A blade changing tool for use in a cutting device including a chuck table for holding a workpiece and a cutting means for including a blade mount for rotatably supporting a cutting blade for cutting the workpiece held by the chuck table. The blade changing tool includes a C-shaped elastic cylindrical body including a cutout formed by cutting out a part of a circular cylinder, a holding groove formed on the inner circumferential surface of the cylindrical body at one end portion thereof and adapted to surround a circular hub of the cutting blade, and a grip portion adapted to be gripped by an operator for making a change from an inoperative condition where the circular hub of the cutting blade is surrounded by the inner circumference of the cylindrical body to an operative condition where the circular hub is held by the inner circumference of the cylindrical body.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 25, 2008
    Applicant: DISCO CORPORATION
    Inventors: Yusaku Tomooka, Kiwato Ohmoto, Ryoji Itaoka