Mike Panko has been promoted to eastern regional sales manager for Carroll Scientific, a Lubrizol Company. In addition to his east coast responsibilities, Mr. Panko will also call on strategic accounts.      Prior to this position, he was the U.S. liquid marketing manager for the company. He has been in the printing ink industry for 25 years.      The company also named Jim Katz regional sales manager for the midwestern U.S., where he is responsible for sales and account development. He wa...