Olympus Optical Company, Ltd.

Yougo Imai

Katsuhiro Wakabayashi

Yukihiko Sawada

Tomoki Funakubo

Takanao Fujimura

Hiroyuki Imabayashi

Takashi Ouchi

Yoshihisa Taniguchi

Hideo Takenaga

Toshiharu Tsubata

An ultrasonic piezoelectric transducer and an ultrasonic actuator for performing enhanced elliptical vibration comprise a first laminated piezoelectric element having a first fixed end, a resonator mounted to the opposite end of the first laminated piezoelectric element, a second laminated piezoelectric element having one end thereof fixedly mounted to the resonator in a direction other than a vibrating direction of the first laminated piezoelectric element, and a load mass fixedly mounted to the opposite end of the second laminated piezoelectric element. This structure permits the enhanced elliptical vibration of the transducer to have a large, controllable amplitude.

Ultrasonic piezoelectric transducer and ultrasonic actuator

In the disclosed tape recorder, the erase head is supplied with DC erasing current during recording and is connectable with an AC erase unit which supplies AC erasing current instead of the DC erasing current to offer high-quality recording and replay.

Tape recorder

Growing community of inventors

Hachiohji, Japan

Yougo Imai