FOR IMMEDIATE RELEASE July 4, 2005 ADVANTEST CORPORATION (Toshio Maruyama, President and CEO) (Stock Code Number: 6857, TSE first section) (Ticker Symbol: ATE, NYSE) CONTACT: Yuri Morita (Managing Executive Officer and Senior Vice President, Corporate Affairs Group) Phone: +81-(0)3-3214-7500 Advantest Issues Stock Option (Stock Acquisition Rights) Tokyo -July 4, 2005 - Advantest Corporation (the "Company") resolved at a meeting of its Board of Directors on June 28, 2005 to issue stock options in the form of stock acquisition rights pursuant to a shareholders resolution at the 63rd annual general meeting of shareholders. The specific terms and conditions of the issuance of stock options in the form of stock acquisition rights that were not determined at the meeting of its Board of Directors on June 28, 2005 have been determined as set forth below. 1. Date of issuance July 4, 2005 2. Total subscription price to be paid upon exercise 860,000 Yen per unit of each stock acquisition right (8,600 Yen per share) 3. The total value of all shares (newly issued 6,527,400,000 Yen shares or treasury shares) issued or delivered upon the exercise of stock acquisition rights 4. The amount of the issuance price of the newly 4,300 Yen per share issued shares issued pursuant to the exercise of stock acquisition rights that will be incorporated into capital For Reference (1) The date of the meeting of the Board of May 25, 2005 Directors setting the date for the annual general meeting of shareholders (2) Date of the resolution made pursuant to June 28, 2005 the annual general meeting of shareholders 1