MENT Mentor Graphics Corp.

Mentor Graphics Corporation (NASDAQ:MENT) today announced that Dennis Weldon, the company's vice president of Corporate Development & Investor Relations, will present on May 17 at the JP Morgan 33rd Annual Technology Conference at the Westin St. Francis in San Francisco, California. -0- *T What: Mentor Graphics presentation by Dennis Weldon, vice president of Corporate Development & Investor Relations, Mentor Graphics Corporation, at the JP Morgan 33rd Annual Technology Conference. When: Tuesday, May 17, 2005 at 2:00 p.m. (PST) Where: Westin St. Francis, 335 Powell St., San Francisco, California 94102, 415-397-7000. Webcast: http://equityconferences.jpmorgan.com *T About Mentor Graphics Mentor Graphics Corporation (Nasdaq:MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world's most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $700 million and employs approximately 3,850 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at 1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site: http://www.mentor.com/.