Patents by Inventor Taiichiro Yoshimoto

Taiichiro Yoshimoto 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).

  • Cleaning method for a videotape recorder employing a cleaning liquid
    Patent number: 5938858
    Abstract: A cleaning method for a video tape recorder (VTR) employs a cleaning liquid. The cleaning liquid is applied to a tape surface of a tape-shaped support. The tape surface then slides against a surface of a VTR component, such as a magnetic head surface, to clean the surface. The cleaning liquid is a mixture of perfluorocarbons having a boiling point of about 56.degree. C. to about 155.degree. C. The cleaning liquid may also contain a hydrocarbon based solvent and a fluorine based resin. The cleaning liquid acts to clean and to prevent redeposition of contaminants on the surface of VTR component.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: August 17, 1999
    Assignees: Sony Corporation, Taiseishokai Co. Ltd.
    Inventors: Naoki Yokoyama, Taiichiro Yoshimoto