Robert W. Heller

PPT Vision, Inc. designs, manufactures and markets machine vision based intelligent cameras used for automated inspection, measurement and guidance applications in the manufacturing marketplace. Its intelligent camera product line enables manufacturers to realize significant economic paybacks by increasing the quality of manufactured parts and improving the productivity of manufacturing processes. The company's solutions are sold through a global network of distribution and integration partners to end-user manufacturers, original equipment manufacturers, and manufacturing machine builders, in a wide variety of manufacturing markets including electronics, automotive, medical device, pharmaceutical, food and beverage, printing, plastic and packaged goods industries. The company was founded in 1981 and is headquartered in Minneapolis, MN.

HEI, Inc. was an electronic manufacturing services company and full service contract manufacturer providing prototype and mid volume offerings in microelectronic assembly, medical device manufacturing and ceramic, flex & rigid-flex substrates. The firm's primary markets were medical, telecommunications, industrial, aerospace and defense. It support customers products from initial product development and design through transitional and full-scale serial manufacturing to worldwide distribution and aftermarket support. The company was founded in 1968 and was headquartered in Victoria, MN.

Part of Johnson Matthey Plc, Johnson Matthey Advanced Circuits, Inc. is a company that specializes in printed circuit boards. The company is based in Hopkins, MN. Johnson Matthey Advanced Circuits was acquired by Johnson Matthey Plc on January 30, 1996 for $170.20 million.