Patents Represented by Attorney, Agent or Law Firm Lowe Hauptman Giman & Berner LLP
  • Dielectric ceramic composition
    Patent number: 6740613
    Abstract: A dielectric ceramic composition of high dielectric constant and low dielectric loss, which can be co-fired with Ag electrodes, is provided for use in various parts of electric and electronic appliances. The composition is represented by the following chemical formula: a wt. % {xZrO2−yZnO−wNb2O5−zTiO2}+cwt. % glass frit wherein, 5.0 mol %≦x≦45.0 mol %; 1.5 mol %≦y≦19.0 mol %; 1.5 mol %≦w≦19.0 mol %; 40.0 mol %≦z≦59.0 mol % with the proviso that x+y+w+z=100, 75.0≦a≦97.0, and 3.0≦c≦25.0.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: May 25, 2004
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Woo Sup Kim, Kang Heon Hur, Jong Han Kim, Joon Hee Kim