Patents by Inventor Yosinobu Masumura

Yosinobu Masumura 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).

  • Ribbon feeder for a printer having a tension mechanism
    Patent number: 5284396
    Abstract: An object of the present invention is to provide a ribbon feeder to prevent a ribbon from slackening when a sheet is back-fed in a thermal printer. When a ribbon is fed from a ribbon feed roller, resistance is imparted to the rotation of the ribbon feed roller by a first spring. Further, resilient force is stored in a second spring by tension produced when the ribbon is fed from the ribbon feed roller. The ribbon tends to slacken when the sheet is back-fed, such slackening ribbon is rewound by reversely rotating the ribbon feed roller by the stored resilient force.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: February 8, 1994
    Assignee: Kanzaki Paper Mfg. Co., Ltd.
    Inventors: Yosinobu Masumura, Takayasu Hongo, Setsuo Sasabe