Bob Perry, former LG Electronics executive, joins Logitech as sales and marketing VP, Americas ... Tomoyo Nonaka has resigned as chairwoman of Sanyo for "personal reasons," and a statement from the company said that the investigation into Sanyo's need to revise its past earnings were unrelated ... Gregory Q. Brown promoted to president and chief operating officer of Motorola. He was formerly president of the company's network and enterprise business. Thomas Meredith named acting chief financial officer, succeeding David Devonshire, who is retiring April 1. Meredith is a Motorola board member and former finance chief at Dell … Todd Ruhalter, a 27-year CE veteran with Casio and Compact Power Systems, joins MOBI Technologies as president of worldwide operations. He will report directly to MOBI's founder and CEO David Naghi ... Herb Zarkin, chairman of BJ's and interim CEO since November, has been elected president/CEO, succeeding Mike Wedge … Rachel Van Tassel, project manager for Lucidiom's software development and graphics, named marketing VP.