Dielectric material for multilayer ceramic capacitor, and multilayer ceramic capacitor

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United States of America Patent

PATENT NO 9919970
APP PUB NO 20170152187A1
SERIAL NO

15364175

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Abstract

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Dielectric layers are prepared using a dielectric material that contains a ceramic powder having Ba, Ti, and additive element X which is solid-solubilized and is at least one element selected from the group consisting of Mo, Ta, Nb, and W, wherein the standard deviation of the ratio of the peak intensity of the additive element X (XKα) measured by STEM-EDX, and the sum of the peak intensity of the Ti and peak intensity of the Ba (BaLα+TiKα) measured by STEM-EDX, is less than 10.5% of the average ratio as measured at a total of five points including the three points that divide the maximum diameter of one grain of the ceramic powder into four equal parts, and two excluding the center point of the three points that divide the diameter crossing at right angles with the maximum diameter at its center point, into four equal parts.

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Patent Owner(s)

  • TAIYO YUDEN CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiroi, Kazumichi Takasaki, JP 10 65
Kawamura, Chie Takasaki, JP 46 176
Nagaoka, Kunihiko Takasaki, JP 5 44
Ryu, Minoru Takasaki, JP 20 182

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