Tdk Corporation

Yahoo Japan Coprporation

Ryota Namiki

Toshihiro Iguchi

Yuichiro Sueda

Atsushi Watanabe

Kota Tsubouchi

Yasuhiro Okui

Yoshimitsu Sakui

A dielectric composition includes dielectric particles and first segregations. The dielectric particles each include a perovskite compound represented by ABOas a main component. The first segregations each include at least Ba, V, and O. A molar ratio (Ba/Ti) of Ba to Ti detected in the first segregations is 1.20 or more.

Dielectric composition and multilayer ceramic electronic device

A dielectric composition includes dielectric particles and first segregations. The dielectric particles each include a perovskite compound represented by ABOas a main component. The first segregations each include Ba, Ti, Si, Ni, and O.

A ceramic electronic device includes an element body and an external electrode. The element body includes a ceramic layer and an internal electrode layer. The external electrode is formed on an end surface of the element body and electrically connected to a part of the internal electrode layer. The ceramic layer includes a perovskite compound represented by ABOas a main component. The external electrode includes a baked electrode layer having a first region and a second region. The first region is contacted with the end surface of the element body and located near a joint boundary with the element body. The second region is located outside the first region and constitutes an outer surface of the baked electrode layer. The first region includes a glass frit including at least B and Si. The second region includes an Al based oxide mainly including Al.

Ceramic electronic device

A dielectric composition includes dielectric particles and first segregations. The dielectric particles each include a perovskite compound represented by ABOas a main component. The first segregations each include at least Ba, P, and O. A molar ratio (Ba/Ti) of Ba to Ti in the first segregations is 1.20 or more.

A ceramic electronic device includes an element body and an external electrode. The element body is formed by laminating a ceramic layer and an internal electrode layer. The external electrode is electrically connected to at least one end of the internal, electrode layer. The element body includes a boundary layer at an end of the ceramic layer. The ceramic layer includes a perovskite compound represented by ABOas a main component. The boundary layer includes Ba and Ti as a main component. The boundary layer includes 0.27-0.40 parts by mol of Ba, provided that a total of Ba and Ti included in the boundary layer is 1 part by mol.

Ceramic electronic device having an element body with a boundary layer including Ba and Ti at an end of a ceramic layer

A ceramic electronic device includes an element body and an external electrode. The element body is formed by laminating a ceramic layer and an internal electrode layer. The external electrode is electrically connected to at least one end of the internal electrode layer. At least a part of a joint boundary between the electrode layer and the ceramic layer includes an interface protrusion on the external electrode side. The interface protrusion is made of an oxide.

A ceramic electronic device includes an element body and an external electrode. The element body includes a ceramic layer and an internal electrode layer. The external electrode is formed on an end surface of the element body and electrically connected to a part of the internal electrode layer. The ceramic layer includes a perovskite compound represented by ABOas a main component. The external electrode includes a baked electrode layer having a first region and a second region. The first region is contacted with the end surface of the element body and located near a joint boundary with the element body. The second region is located outside the first region and constitutes an outer surface of the baked electrode layer. The first region includes a glass frit including at least B, Zn, and Si. The second region includes an oxide having a higher melting point than Cu.

A ceramic electronic device includes an element body and an external electrode. The element body includes a ceramic layer and an internal electrode layer. The external electrode is formed on an end surface of the element body and electrically connected to a part of the internal electrode layer. The ceramic layer includes a perovskite compound represented by ABOas a main component. The external electrode includes a conductor and a glass frit diffused in the conductor. The glass frit includes B, Si, Ba, and Zn. A boundary layer is present at an end of the ceramic layer in contact with the external electrode on the end surface of the element body and comprises an oxide including Ba, Zn, and Si.

A ceramic electronic device includes an element body and an external electrode. The element body is formed by laminating a ceramic layer and an internal electrode layer. The external electrode is electrically connected to at least one end of the internal electrode layer. The external electrode includes a baked electrode layer. The baked electrode layer includes a first region and a second region. The first region is contacted with an end surface of the element body and located near a joint boundary with the element body. The second region is located outside the first region and constituting an outer surface of the baked electrode layer. The first region includes a first glass having a predetermined composition. The second region includes a second glass having a predetermined composition.

An information processing device according to the present application includes an acquisition unit and a determination unit. The acquisition unit acquires time-series position information acquired by a terminal device. The determination unit determines whether relation between one or more pieces of interest position information included in the time-series position information acquired by the acquisition unit and prior or posterior position information in time series satisfies a predetermined criterion, and determines whether to hold the interest position information based on a determination result.

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Ryota Namiki