Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Kyoto University

Hidetaka Sugaya

Tomoki Masuda

Hidetomo Nagahara

Masamichi Hashida

Yoshiharu Uchimoto

Katsutoshi Fukuda

Masahito Morita

An acoustic matching layer includes a base material having a plate-shaped member made of a metal, a ceramic, or glass. Depressed portions are partially provided in a vibration surface of the base material toward a joining surface of the base material that is in a propagation direction of a sound wave.

Acoustic matching layer

A multilayer body includes a piezoelectric body and a first acoustic matching layer in direct or indirect contact with the piezoelectric body. The first acoustic matching layer includes a plastic foam containing a plurality of closed pores. An average pore size of the closed pores is not smaller than 1 &#x3bc;m and not larger than 100 &#x3bc;m. The first acoustic matching layer has a density of not less than 10 kg/mand not more than 100 kg/m.

Multilayer body that includes piezoelectric body

There is provided molybdenum oxide for an active material of an electricity storage device having excellent rate characteristics and structural stability. A turbostratic materialhas a turbostratic structure composed of a plurality of nanosheets, where the nanosheets have the composition MoO.

Turbostratic material, active material for electricity storage devices, electrode, and electricity storage device

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Shiga, Japan

Hidetaka Sugaya