Murata Manufacturing Co., Ltd.

Nippon Kayaku Kabushiki Kaisha

Atsushi Ishida

Takumi Taniguchi

Akihiro Motoki

Masaki Tani

Takehisa Sasabayashi

Kota Zenzai

Yoshihiro Koshido

Toshiyuki Iwanaga

Hajime Yamada

Seiji Katsuta

Yosuke Terashita

Shigeru Maeda

Naoko Aizawa

Masaki Tsukida

Mayumi Yamada

Toshiaki Furuya

Katsuki Nakanishi

Takayoshi Yamamoto

Yasuaki Matsumura

Katsumori Nagamiya

Makoto Sugiura

Tomoyuki Kuwano

In a multilayer ceramic capacitor, outer electrodes include base electrode layers including a conductive metal and a glass component on a ceramic multilayer body, conductive resin layers including a thermosetting resin and a metal component on the base electrode layers such that exposed portions of the base electrode layers are exposed at least at one corner on one end surface side of the ceramic multilayer body and at least at one corner on the other end surface side thereof, and plating layers on the conductive resin layers and the exposed portions of the base electrode layers. The exposed portions of the base electrode layers are in direct contact with the plating layers at least at one corner on the one end surface side of the ceramic multilayer body and at least at one corner on the other end surface side thereof.

Multilayer ceramic capacitor

In a multilayer ceramic capacitor including outer electrodes electrically connected to inner electrodes of a ceramic body, a thickness of each of end portions of extension portions of the inner electrodes in a width direction is larger than a thickness of a corresponding one of middle regions in the width direction, and a distance from a first main surface of the ceramic body to a first auxiliary electrode closest to the first main surface is different from a distance from a second main surface of the ceramic body to a second auxiliary electrode closest to the second main surface in a stacking direction. Each of the first auxiliary electrode and the second auxiliary electrode has a continuity in the width direction of about 60% or more.

In a laminated ceramic electronic component, a first functional portion and a second functional portion are disposed within a ceramic element body so as to be adjacent to each other along a height direction, first and second internal electrodes face each other through a ceramic layer in the first functional portion, and third and fourth internal electrodes whose number of laminated layers is different from the number of laminated layers of the first and second internal electrodes face each other through the ceramic layer in the second functional portion. A marking internal conductor is disposed on the same plane as the first internal electrode and/or the second internal electrode, a marking external conductor is disposed on the side surface of the ceramic element body so as to link a plurality of exposed marking internal conductors such that it is possible to recognize vertical directionality.

Laminated ceramic electronic component

A ceramic electronic component includes a ceramic element including opposed side surfaces, an inner electrode, and an external terminal electrode. The external terminal electrode includes a first conductive layer and a second conductive layer. The first conductive layer is formed by plating so as to be electrically coupled to an exposed section of the internal electrode exposed to the side surfaces. The second conductive layer is arranged so as to cover the first conductive layer and includes conductive resin. The value of T/Tis in the range of about 3.4 to about 11.3, where Tindicates the thickness of the first conductive layer and Tindicates the thickness of the second conductive layer.

Ceramic electronic component

An electronic component includes a substantially rectangular parallelepiped electronic component body and first to fourth external electrodes. The first to fourth external electrodes are arranged such that a shaped defined by joining the centers of portions of the first to fourth external electrodes on a first main surface with a substantially straight line is substantially square. The first main surface is provided with a substantially linear orientation identifying mark disposed thereon. The orientation identifying mark passes through an intersection of two diagonals of the substantially square shape and extends along the longitudinal direction or the width direction.

Electronic component

In a laminated ceramic electronic component including a ceramic element body including a plurality of effective sections, each of which constitutes a circuit element such as a laminated capacitor unit, bumps generated between the effective portions and a gap interposed between the effective portions can be made minimized. Specifically, the ceramic element body includes a first effective section including a first circuit element and a second effective section including a second circuit element. A gap is provided between the first and second effective section. Floating internal conductors are arranged in the gap at least in one of first and second external layer sections, the first external section being interposed between a first main surface and the first and second effective sections, and the second external layer section being interposed between a second main surface and the first and second effective sections.

An ignition element mounting capacitor having an ignition element mounted on a capacitor, includes therein a first capacitor section and a second capacitor section, and first external terminal electrodes electrically connected to the first capacitor section and second external terminal electrodes electrically connected to the second capacitor section. The first capacitor section has a capacity for igniting ignition powder, and the second capacitor section has a function for removing noise which affects external circuits. Further, provided on the surface of the capacitor are third external terminal electrodes electrically connected to the ignition element. In this manner, the invention provides a squib enabling its size to be miniaturized and its quality to be improved, while keeping a high productivity, and hence provides a header assembly and a ignition element mounting capacitor as components of the squib and further provides a gas generator having such a squib installed therein for an air bag and a gas generator having the squib for a seat belt pretensioner.

Ignition element mounting capacitor, header assembly, squib and gas generator for air bag and gas generator for seat belt pretensioner

A capacitor array includes mutually opposed first and second internal electrodes having a first capacitance portion and a second capacitance portion, respectively, a first lead portion and a second lead portion, respectively, which are electrically connected to a first outer terminal electrode and a second outer terminal electrode, and a first protrusion portion and a second protrusion portion, respectively, which partially protrude toward the second outer terminal electrode and the first outer terminal electrode. The outer terminal electrodes have plating films directly connected to the internal electrodes. The plating film is formed by electrolytic plating. In the electrolytic plating, deposition of plating proceeds while being prevented from spreading in width directions of the individual side surfaces by electric fields generated from the protrusion portions toward the vicinities of exposure portions of the respective lead portions on the side surfaces.

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Nagaokakyo, Japan

Atsushi Ishida