Patents by Inventor Yoichi Yoshino

Yoichi Yoshino 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).

  • Method and apparatus for performing pattern defect repair using Q-switched mode-locked pulse laser
    Patent number: 6879605
    Abstract: A method for repairing a pattern by using a laser and a laser-based pattern repair apparatus are provided which are capable of reducing splashes, rolling-up, and damage to a glass substrate to a minimum in pattern defects repairing processing by removing a thin metal layer such as a chromium layer. A part of a string of pulses obtained by slicing, using an optical shutter, pulses from laser light having a pulse width of 10 ps to 300 ps emitted from a Q-switched mode-locked pulse laser is used to produce multi-pulses which are divided into two portions in terms of time base correction using an optical delaying unit.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: April 12, 2005
    Assignee: Laserfront Technologies, Inc.
    Inventors: Yukio Kyusho, Yoichi Yoshino, Yukio Morishige
  • Method for repairing pattern by laser and laser-based pattern repair apparatus
    Publication number: 20020009843
    Abstract: A method for repairing a pattern by using a laser and a laser-basedpattern repair apparatus are providedwhich are capable of reducing splashes, rolling-up, and damage to a glass substrate to a minimum in pattern defects repairing processing by removing a thin metal layer such as a chromium layer. A part of a string of pulses obtained by slicing, using an optical shutter, pulses from laser light having a pulse width of 10 ps to 300 ps emitted from a Q-swiched mode-locked pulse laser is used to produce multi-pulses which are divided into two portions in terms of time base correction using an optical delaying unit.
    Type: Application
    Filed: July 24, 2001
    Publication date: January 24, 2002
    Applicant: NEC Corporation
    Inventors: Yukio Kyusho, Yoichi Yoshino, Yukio Morishige