http://www.usa.canon.com/cusa/semiconductor/products/dcmicro_motors/actuator_units?pageKeyCode=writeReviewPage
Actuator Units
Overview
Canon's actuator units are developed and designed
by utilization and implementation of simulation techniques
combined with motors, our core technology. These small
sized, lightweight actuators, designed to customer specifications,
have already been used in many applications, such as water
boiler valve actuators, with very high levels of customer
satisfaction.