EX-99.1 3 dex991.htm CERTIFICATION OF PERIODIC REPORT BY CHIEF EXECUTIVE OFFICER Certification of Periodic Report by Chief Executive Officer

Exhibit 99.1

CERTIFICATION OF PERIODIC REPORT

I, Joel P. Moskowitz, Chief Executive Officer of Ceradyne, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

          (1)

the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2003 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 780(d)); and

 

 

          (1)

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:  May 14, 2003

 

 

/s/ JOEL P. MOSKOWITZ

 

 

 

 

Joel P. Moskowitz
Chief Executive Officer