FOR IMMEDIATE RELEASE April 25, 2007 ADVANTEST CORPORATION (Toshio Maruyama, President and CEO) (Stock Code Number: 6857, TSE first section) (Ticker Symbol: ATE, NYSE) CONTACT: Hiroshi Nakamura (Executive Officer and Vice President, Corporate Affairs Group) Phone: +81-(0)3-3214-7500 Announcement with Respect to Share Repurchase (Pursuant to the Articles of Incorporation in accordance with Article 459, Paragraph 1 of the Company Law) Tokyo -April 25, 2007 - Advantest Corporation (the "Company") resolved at a meeting of its Board of Directors today to repurchase its shares pursuant to the Articles of Incorporation in accordance with Article 459, Paragraph 1 of the Company Law under the terms set forth below. 1. Reason for share repurchase To improve capital efficiency and to implement capital policies responsive to the Company's operating environment. 2. Scope of share repurchase (1) Class of shares to be repurchased Common stock (2) Aggregate number of shares to be repurchased Up to 3.6 million shares (1.8% of the total issued and outstanding shares) (3) Aggregate price of shares to be repurchased Up to 20 billion yen (4) Period for share repurchase From April 26, 2007 to June 20, 2007 (For Reference) Treasury stock held by the Company as of March 31, 2007 (1) Number of the total issued and outstanding shares (excluding treasury stock) 187,650,285 shares (2) Number of treasury stock 11,916,485 shares