Invention Grant
- Patent Title: Dielectric ceramic and laminated ceramic capacitor
- Patent Title (中): 介质陶瓷和层压陶瓷电容器
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Application No.: US13226540Application Date: 2011-09-07
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Publication No.: US08445397B2Publication Date: 2013-05-21
- Inventor: Shinichi Yamaguchi
- Applicant: Shinichi Yamaguchi
- Applicant Address: JP Nagaokakyo-Shi, Kyoto-fu
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Nagaokakyo-Shi, Kyoto-fu
- Agency: Dickstein Shapiro LLP
- Priority: JP2010-221935 20100930
- Main IPC: C04B35/468
- IPC: C04B35/468 ; H01G4/06

Abstract:
A laminated ceramic capacitor which exhibits excellent lifetime characteristics in a high temperature loading test uses a dielectric ceramic constituting the dielectric layers which contains (Ba1-xCax)TiO3 as its main constituent, and contains a parts by mol of Al, b parts by mol of V, c parts by mol of Mg, and d parts by mol of Re with respect to 100 parts by mol of the (Ba1-xCax)TiO3. The Re is at least one metal element selected from among Y, La, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, and the x, a, b, c, and d respectively satisfy the conditions of 0.050≦x≦0.150, a≧0.15, 0.05≦b≦0.50, c≦0.50, and d≧1.00.
Public/Granted literature
- US20120081836A1 DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR Public/Granted day:2012-04-05
Information query
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