Murata Manufacturing Co., Ltd.

Junichi Nomura

Yasunobu Yoneda

Hideaki Niimi

Hiroshi Yamamoto

Koichi Hayashi

Kenji Kagayama

Haruyoshi Kurakawa

Seishiro Goto

Megumi Otsuka

A vibration device that includes a first elastic plate having a first end portion and a second end portion, and a first surface and a second surface facing each other and connecting the first and second end portions. A second elastic plate is laminated to the second end portion of the first elastic plate, and a piezoelectric vibration element is provided on at least one of the first surface and the second surface of the first elastic plate. On a portion where the first elastic plate and the second elastic plate are laminated, a first bonding portion and a second bonding portion that bond the first elastic plate and the second elastic plate to each other are provided. The second bonding portion is located closer to the first end portion than the first bonding portion.

Vibration device and method of manufacturing the same

A driving device that causes a movable body to move stably with minimal backward movement. The driving device includes a plate-shaped driving unit with an elastic body and a piezoelectric element joined to a main surface of the elastic body. Moreover, the movable body is disposed into a cavity of the elastic body and is moved by being pitch fed when the driving unit is driven. The driving unit vibrates with flexural vibration and one more other vibration modes or with vibration of a coupled mode in which the flexural vibration and the other vibration mode are coupled with each other.

Driving device

A semiconducting ceramic composition for secondary electron multipliers consists essentially of 55 to 80 mol % of zinc oxide, 12 to 30 mol % of titanium oxide, and 0.2 to 20 mol % of nickel oxide.

Semiconductor ceramic composition for secondary electron multipliers

Growing community of inventors

Nagaokakyo, Japan

Junichi Nomura