When it comes to factory automation, sensors provide the sweet chaCHING cadence for Keyence Corp. Established in 1974 Keyence manufactures a slew of sensors, machine vision and measurement systems, barcode readers, and programmable logic controllers (PLCs). Its short list includes photoelectric sensors, pressure sensors, and ultrasonic sensors. A line for vision measurement offers optical micrometers, digital microscopes, and others. Keyence also provides technical support and training to customers. The sensors supplier holds more than a 40% stake in a software vendor, JustSystems, too. Along with an online retail site, Keyence's global offices poll more than 100,000 customers; Japan garners about 75% of sales.