Patents by Inventor Kunimi Ohhashi

Kunimi Ohhashi 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).

  • Ultrasonic wave cleaning apparatus and method
    Patent number: 4672984
    Abstract: An apparatus for cleaning a part such as optical glass by an ultrasonic wave in a plurality of steps has a plurality of preset operation modes for an ultrasonic wave output strength and an ultrasonic wave cleaning time in each step so that one of the operation modes is selected in accordance with a property of the part to clean it in an appropriate manner.
    Type: Grant
    Filed: June 4, 1985
    Date of Patent: June 16, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kunimi Ohhashi