The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2007
Filed:
Jan. 25, 2007
Kazuo Muto, Kusatsu, JP;
Tomoyuki Nakamura, Moriyama, JP;
Akira Kato, Moriyama, JP;
Harunobu Sano, Kyoto, JP;
Takehisa Sasabayashi, Ritto, JP;
Takashi Hiramatsu, Kusatsu, JP;
Kazuo Muto, Kusatsu, JP;
Tomoyuki Nakamura, Moriyama, JP;
Akira Kato, Moriyama, JP;
Harunobu Sano, Kyoto, JP;
Takehisa Sasabayashi, Ritto, JP;
Takashi Hiramatsu, Kusatsu, JP;
Abstract
The dielectric ceramic has a composition represented by general formula 100(BaSrCa)(TiZr)O+aBaO+bRO+cMgO+dMnO+eCuO+fVO+gXO(where R is a rare-earth element such as La, Ce or Pr; and XOis an oxide group including at least Si); and 0≦x≦0.05, 0≦y≦0.08 (preferably 0.02≦y≦0.08), 0≦z≦0.05, 0.990≦m, 100.2≦(100 m+a)≦102, 0.05≦b≦0.5, 0.05≦c≦2, 0.05≦d≦1.3, 0.1≦e≦1.0, 0.02≦f≦0.15, and 0.2≦g≦2. With this composition, a monolithic ceramic capacitor retaining good dielectric characteristics and temperature characteristics even if a high field strength voltage is applied by further thinning the dielectric layers thereof and having excellent reliability achieving good isolating property, dielectric strength, and high-temperature load life is obtained.