Patents by Inventor Kazuo Tsuna

Kazuo Tsuna 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).

  • Laser processing method and apparatus
    Patent number: 5103074
    Abstract: With a laser processing apparatus, the membrane of a membrane-covered film is accurately processed with a scanning laser beam linearly both in the direction of conveyance of the film and in a widthwise direction forming an angle with the direction of conveyance simultaneously, and particles splashed or scattered from the membrane by application of the laser beam are positively removed for protection of the film and the laser beam applying heads. A method of applying a scanning laser beam to a workpiece to be processed where the scanning beam is so formed that the portion of the workpiece which is processed with it shows a smooth boundary in the direction of processing.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: April 7, 1992
    Assignee: Nippei Toyama Corporation
    Inventors: Yoshiaki Watanabe, Hideo Ogino, Kazuo Tsuna, Jun Kataoka, Shozo Katamachi