Patents by Inventor Tsutomu Kigawa

Tsutomu Kigawa 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).

  • Device for installing suction jig for eyeglass lens and method for determining suction jig installation position
    Patent number: 7648237
    Abstract: An automatic suction device for an eyeglass lens and a method for determining suction jig installation position, capable of recognizing that a frame exchange lens holder is being installed on a placement table, making transition to installation work of a frame exchange mode, and avoiding an erroneous contact between the frame exchange frame and a lens holding frame. The kind of holding means placed on the placement table is determined from an image of the inside of an opening (141), which image is taken by a CCD camera (105), and the installation position of a suction jig (121) at an eyeglass lens (L) placed on a frame exchange lens holder (300) is obtained.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: January 19, 2010
    Assignee: Topcon Corporation
    Inventors: Tsutomu Kigawa, Kazuo Kitamura, Nobuo Kochi, Takahiro Watanabe, Yoshimasa Ogawa
  • Device For Installing Suction Jig For Eyeglass Lens and Method For Determining Suction Jig Installation Position
    Publication number: 20080204654
    Abstract: An automatic suction device for an eyeglass lens and a method for determining suction jig installation position, capable of recognizing that a frame exchange lens holder is being installed on a placement table, making transition to installation work of a frame exchange mode, and avoiding an erroneous contact between the frame exchange frame and a lens holding frame. The kind of holding means placed on the placement table is determined from an image of the inside of an opening (141), which image is taken by a CCD camera (105), and the installation position of a suction jig (121) at an eyeglass lens (L) placed on a frame exchange lens holder (300) is obtained.
    Type: Application
    Filed: March 24, 2005
    Publication date: August 28, 2008
    Inventors: Tsutomu Kigawa, Kazuo Kitamura, Nobuo Kochi, Takahiro Watanabe, Yoshimasa Ogawa