Piezoelectric drive device, piezoelectric motor, robot, electronic component transport apparatus, and printer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10958194
APP PUB NO 20180287514A1
SERIAL NO

15938397

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A piezoelectric drive device includes a piezoelectric actuator which includes a vibration portion that vibrates and a protruding portion that protrudes from the vibration portion, a driven member, an optical scale, a sensor which receives transmitted light or reflected light from the optical scale and outputs a signal in accordance with intensity of the received light, in which a facing area of the optical scale and the sensor is disposed to be deviated to one side in a direction in which the optical scale and the sensor are aligned with respect to a contact portion between the protruding portion and the driven member.

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Patent Owner(s)

Patent OwnerAddress
SEIKO EPSON CORPORATIONTOKYO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arakawa, Yutaka Hara-mura, JP 75 365
Iwazaki, Tomohisa Okaya, JP 27 48

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