Patents by Inventor Ryuichi Uzuka

Ryuichi Uzuka 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).

  • Thermal print head and manufacturing method thereof
    Patent number: 5995127
    Abstract: A thermal print head is provided with a supporting substrate, a glaze layer formed on the substrate, a heating resistor which is formed on the glaze layer and made of Si and O and the rest being substantially composed of a metal, and electrodes connected to the heating resistor. The heating resistor has an unpaired electron density of 1.0.times.10.sup.19 /cm.sup.3. In addition, the reaction layer formed by reaction of the glaze layer and the heating resistor is formed between the glaze layer and resistor.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: November 30, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ryuichi Uzuka