Ronald J. Ritchie

Mr. Ritchie, 64, has served as a director since 1997 and as Chairman since 2004.
From October 1999 to date, Mr. Ritchie has served as president of Ritchie Associates, a business and management consulting firm.
From October 1999 to June 2002, Mr. Ritchie also served as director of PixTech, Inc., a provider of field emission displays to worldwide customers, and he served as interim Chief Executive Officer of PixTech from August 2001 to June 2002.
Mr. Ritchie served as Chairman of the Board of VXI Electronics, Inc., a supplier of power conversion components, from February 1998 until its acquisition by Celestica Inc. in September 1999.
Mr. Ritchie was President and CEO of Akashic Memories Corporation, a firm supplying thin film hard disk media to manufacturers of disk drive products, from November 1996 to January 1998.
From May 1994 to November 1996, Mr. Ritchie also served as President of Ritchie Associates.
From August 1992 to April 1994, Mr. Ritchie was President and Chief Operating Officer of Computer Products, Inc., a supplier of power conversion components and system applications for the computer and networking industry.
Prior to August 1992, Mr. Ritchie held President or senior executive positions at Ampex Corporation, Canaan Computer Corporation, Allied Signal Corporation and Texas Instruments.