Aiphone Corporation, an international manufacturer of intercom and entry security products, is relocating its 53 full-time corporate employees to Redmond, Washington.  After 31 years in their present location, this expansion will provide enough room for growing sales, marketing, technical, customer service, repair and engineering groups. They will be doubling their operation from 15,000 square feet to 32,000 square feet. The new address will be located at 6670 185th Ave NE, Redmond, Wash., 98052.