Exhibit 9.1 VOTING AGREEMENT This VOTING AGREEMENT (this "Agreement"), dated as of December 3, 2001, is entered into by and among Moriyuki Chimura, Gerald C. Hsu, Fu-Hwa (Howard) Ko, Sheng-Chun (Paul) Lo, Viraj J. Patel, Amy Sakasegawa, Scott...Voting Agreement • December 5th, 2001 • Synopsys Inc • Services-prepackaged software • Delaware
Contract Type FiledDecember 5th, 2001 Company Industry Jurisdiction
ARTICLE I THE MERGERAgreement and Plan of Merger • December 5th, 2001 • Synopsys Inc • Services-prepackaged software • Delaware
Contract Type FiledDecember 5th, 2001 Company Industry Jurisdiction