Patents by Inventor Sadayoshi Taguchi

Sadayoshi Taguchi 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).

  • Thick film resistor material and thermal head obtained therefrom
    Patent number: 5109238
    Abstract: A thermal head obtained by calcining a mixed material comprising at least ruthenium oxide particles having specific surface area of 10 to 45 m.sup.2 /g and a particle size of 1 .mu.m as the upper limit value of particle size distribution, glass fine particles and a dispersant which disperses these fine particles and disappears by calcining can reduce scattering of resistance values and give high image quality at thermal printing.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: April 28, 1992
    Assignees: Hitachi, Ltd., Tanaka Matthey Co.
    Inventors: Michihiro Watanabe, Kazutaka Sato, Munetoshi Zen, Kazuhiko Ato, Yoshinobu Watanabe, Sadayoshi Taguchi
  • Thick film resistor material and thermal head obtained therefrom
    Patent number: 5021194
    Abstract: A thermal head obtained by calcining a mixed material comprising at least ruthenium oxide particles having a specific surface area of 10 to 40 m.sup.2 /g and a particle size of 1 .mu.m as the upper limit value of particle size distribution, glass fine particles and a dispersant which disperses these fine particles and disappears by calcining can reduce scattering of resistance values and give high image quality at thermal printing.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: June 4, 1991
    Assignees: Hitachi, Ltd., Tanaka Matthey Co., Ltd.
    Inventors: Michihiro Watanabe, Kazutaka Sato, Munetoshi Zen, Kazuhiko Ato, Yoshinobu Watanabe, Sadayoshi Taguchi