Patents by Inventor Jun Yokokawa

Jun Yokokawa 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).

  • Dual-function information-carrying sheet device
    Patent number: 4904853
    Abstract: A dual-function information carrying sheet device comprising a digital data storage medium for storing digital data, electrical contacts and an interface through which data is to be stored into or fetched from the digital data storage medium. A visual information record medium on which visual information is associated with the data stored or to be stored in the digital data storage medium is recorded.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: February 27, 1990
    Assignee: Kabushiki Kaisha Astex
    Inventor: Jun Yokokawa