Honda Giken Kogyo Kabushiki Kaisha

Murata Manufacturing Co., Ltd.

Mitsubishi Materials Corporation

Research Institute of Industrial Science & Technology

Shimizu Construction Co., Ltd.

Pohang Iron & Steel Co. Ltd.

Hiroaki Yanagida

Sogo Keibi Hosho Kabushiki Kaisha

Masaru Miyayama

Norio Muto

Shoichiro Suzuki

Yuji Isogai

Koichi Banno

Kazuyasu Hikita

Minoru Sugita

Teruyuki Nakatsuji

Yasushi Otsuka

Teijiro Kajiwara

Isogai Yuji

Yuji Noguchi

Byoung C Shin

A stacked ceramic capacitor that includes a ceramic body formed by stacking dielectric ceramic layers and internal electrodes mainly composed of Ni; and an external electrode formed on an outer surface of ceramic body. The dielectric ceramic layers are formed by using a dielectric ceramic composition that includes a main ingredient expressed by (KNaLiM2)(NbTaMgM4)O, where M2 is at least one of Ca, Sr and Ba, M4 is at least one of Zr, Hf and Sn, and a, b, c, d, w, x, y, and z satisfy predetermined relationships; and includes 2 to 15 molar parts of Mn with respect to 100 molar parts of a total content of Nb, Ta, Mg, and M4.

Dielectric ceramic composition, stacked ceramic capacitor using the same, and method of manufacturing the same

A piezoelectric actuator subjected to bending displacement by sensing a reducing gas is composed of two regions bonded to each other, one of the regions being made of a material whose electric resistance varies by sensing a reducing gas, and the other of the regions being made of a piezoelectric material which is not sensitive to a reducing gas, an electrode being formed on an outer surface of each region to apply an electric field to the piezoelectric material.

Piezoelectric actuator sensitive to reducing gas

Gas sensor and gas discriminating method

Carbon monoxide (CO) detecting sensor, and manufacturing process therefor

A humidity-sensitive actuator includes a plate made of piezoelectric electrostrictive ceramic having a variable electric resistance region having a high moisture absorbing capability and defining a flat electrode attachment surface, and a high, fixed electric resistance region having a low moisture absorbing capability and defining a flat electrode attachment surface. The variable electric resistance region is joined to the high, fixed electric resistance region with electrodes on the flat electrode attachment surface on opposite sides of the plate for applying an electric voltage transversely through the plate. Under a high humidity condition, when the voltage is applied transversely across the plate through the electrodes by a power supply, an electric field is applied in different proportions to the variable and high, fixed electric resistance regions, which thereby contract by smaller and larger lengths, respectively, and produce a flexural displacement of the plate to serve as a humidity-sensitive actuator.

Humidity-sensitive actuator

A strain or stress gauge 1A is presented for measuring the stress of a structure or a member. The gauge 1A comprises a bundle of electric conductive fibers 3, and a pair of terminals 4, for measuring an electric resistance of the bundle of electric conductive fibers provided on both ends thereof. It presents a strain or stress gauge having a simple structure, which can be produced inexpensively, and its size can be chosen freely. It is possible to know not only the state of a strain or stress but also the history of stress in a structure or a structural member which, by the characteristics of a specific curve relating the stress/strain relationship of the gauge.

Strain or stress gauge and method for detecting strain or stress of

In the present invention, semiconductor fibers electrical resistance of which varies in response to temperature change are arranged unidirectionally or bidirectionally, so that a detection element which has excellent response characteristic, can detect also a position of infrared source, and is inexpensive can be obtained.

Infrared detection element

Growing community of inventors

Kawasaki, Japan

Masaru Miyayama