Patents by Inventor Yoshiaki Naruo

Yoshiaki Naruo 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).

  • Low temperature-fired porcelain articles and electronic parts
    Patent number: 6764746
    Abstract: An object of the invention is to provide a low temperature fired porcelain having an optimum firing temperature not higher than 1000° C. a reduced dielectric constant ∈ r, an improved quality coefficient and a low incidence of cracks. The invention provides a low temperature-fired porcelain comprising a barium component in a calculated amount of 10 to 64 weight percent when calculated as BaO, a silicon component in a calculated amount of 20 to 80 weight percent when calculated as SiO2, an aluminum component in a calculated amount of 0.1 to 20 weight percent when calculated as Al2O3, a boron component in a calculated amount of 0.3 to 1.0 weight percent when calculated as B2O3 a zinc component in a calculated amount of 0.5 to 20 weight percent when calculated as ZnO, and a bismuth component in a calculated amount of not higher than 20 weight percent when calculated as Bi2O3.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: July 20, 2004
    Assignees: NGK Insulators, Ltd., Soshin Electric Co., Ltd.
    Inventors: Takeshi Oobuchi, Yoshiaki Naruo, Yoshinori Ide
  • Low temperature-fired porcelain articles and electronic parts
    Publication number: 20020193238
    Abstract: An object of the invention is to provide a low temperature fired porcelain having an optimum firing temperature not higher than 1000° C., a reduced dielectric constant &egr; r, an improved quality coefficient and a low incidence of cracks.
    Type: Application
    Filed: March 5, 2002
    Publication date: December 19, 2002
    Applicant: NGK Insulators, Ltd.
    Inventors: Takeshi Oobuchi, Yoshiaki Naruo, Yoshinori Ide