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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 BNCmyRn3+VPbgPqU+bHbY3tQmRb0xjDJn/eV4QgbpbIovp3FcvbD9iFXAG5UT4wp
 ydWUqSq6WsCKSQ3iYDNK6w==

<SEC-DOCUMENT>9999999997-10-011695.txt : 20100519
<SEC-HEADER>9999999997-10-011695.hdr.sgml : 20100519
<ACCEPTANCE-DATETIME>20100519143407
<PAPER>
ACCESSION NUMBER:		9999999997-10-011695
CONFORMED SUBMISSION TYPE:	ARS
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091231
FILED AS OF DATE:		20100510
DATE AS OF CHANGE:		20100519
EFFECTIVENESS DATE:		20100510

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CERADYNE INC
		CENTRAL INDEX KEY:			0000018937
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS MANUFACTURING INDUSTRIES [3990]
		IRS NUMBER:				330055414
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		ARS
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13059
		FILM NUMBER:		10012681

	BUSINESS ADDRESS:	
		STREET 1:		3169 RED HILL AVENUE
		CITY:			COSTA MESA
		STATE:			CA
		ZIP:			92626
		BUSINESS PHONE:		7145490421

	MAIL ADDRESS:	
		STREET 1:		3169 RED HILL AVENUE
		CITY:			COSTA MESA
		STATE:			CA
		ZIP:			92626
</SEC-HEADER>
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<FILENAME>9999999997-10-011695.paper
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This document was generated as part of a paper submission.
Please reference the Document Control Number 10012681 for access to the original document.
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