EXHIBIT 32.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Each of the undersigned hereby certifies, in his capacity as an officer of Adept Technology, Inc. (the "Company"), for purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that based on his knowledge: o the quarterly report of the Company on Form 10Q for the fiscal quarter ended December 27, 2003 fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934; and o the information contained in such report fairly presents, in all material respects, the financial condition and results of operation of the Company. Dated: February 10, 2004 /s/ Robert H. Bucher - ------------------------- Robert H. Bucher Chairman of the Board of Directors and Chief Executive Officer of Adept Technology, Inc. /s/ Michael W. Overby - ------------------------- Michael W. Overby Vice President of Finance and Chief Financial Officer of Adept Technology, Inc.