-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 JsNrcs4QVaGqiVn38jVbuYixOkUxAjdLC1qzGAnvwZz4/9tWNKRou+ey3GDdUyR3
 dLtnVTeFYWwKkVLFRxMXDg==

<SEC-DOCUMENT>0001181431-03-000876.txt : 20030121
<SEC-HEADER>0001181431-03-000876.hdr.sgml : 20030120
<ACCEPTANCE-DATETIME>20030121093533
ACCESSION NUMBER:		0001181431-03-000876
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030117
FILED AS OF DATE:		20030121

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SIEGEL RICHARD W
		CENTRAL INDEX KEY:			0001195154
		RELATIONSHIP:				DIRECTOR

	FILING VALUES:
		FORM TYPE:		4

	MAIL ADDRESS:	
		STREET 1:		1319 MARQUETTE DR
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60441

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NANOPHASE TECHNOLOGIES CORPORATION
		CENTRAL INDEX KEY:			0000883107
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS PRIMARY METAL PRODUCTS [3390]
		IRS NUMBER:				363687863
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22333
		FILM NUMBER:		03518711

	BUSINESS ADDRESS:	
		STREET 1:		453 COMMERCE ST
		CITY:			BURR RIDGE
		STATE:			IL
		ZIP:			60521
		BUSINESS PHONE:		6303231200

	MAIL ADDRESS:	
		STREET 1:		453 COMMERCE STREET
		CITY:			BURR RIDGE
		STATE:			IL
		ZIP:			60521
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd3733.htm
<DESCRIPTION>FORM 4
</DOCUMENT>
</SUBMISSION>