发明授权
US07439203B2 Electronic device, dielectric ceramic composition and the production method
有权
电子器件，电介质陶瓷组合物及其制备方法
- 专利标题： Electronic device, dielectric ceramic composition and the production method
- 专利标题（中）： 电子器件，电介质陶瓷组合物及其制备方法
-
申请号： US11390121申请日： 2006-03-28
-
公开(公告)号： US07439203B2公开(公告)日： 2008-10-21
- 发明人: Kazushige Ito , Akira Sato
- 申请人： Kazushige Ito , Akira Sato
- 申请人地址： JP Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2005-107842 20050404
- 主分类号： C04B35/468
- IPC分类号： C04B35/468 ; H01G4/06
摘要：
A dielectric ceramic composition comprising a main component including barium titanate and an oxide of Al, wherein the dielectric ceramic composition includes a plurality of dielectric particles, concentration of Al in each of the dielectric particles becomes lower from a particle surface to inside thereof, and each of the dielectric particles has an Al non-dispersed region substantially not including Al at least at a center portion of the particle.