XML DB :: Loading Data Into A Table From XML Files

I was trying to load data from XML files to an Oracle database table.I followed these below steps to load that file data into a table. Created XML_DIR1 as oracle directory where i have kept all XML files. 

Create table import_rpt_xml of xmltypexmltype store as binary xml; insert into import_rpt_xmlvalues (xmltype (bfilename('XML_DIR1','I-Yamanouchi-20040525-501.xml'),nls_charset_id('AL32UTF8'))); 

This insert shows below error: Error starting at line 80 in command:insert into import_rpt_xmlvalues(xmltype(bfilename('XML_DIR1', 'I-Yamanouchi-20040525-501.SGM'), nls_charset_id('AL32UTF8')))

Error report:SQL Error: ORA-31061: XDB error: XML event errorORA-19202: Error occurred in XML processingIn line 69 of orastream:LPX-00217: invalid character 142 (U+008E) I tried to look into my XML and got that it has some Japanese characters in it. 

this to deal with japanese characters in XML. I don't want to miss those characters. My databse NLS_CHARACTERSET is 'AL32UTF8'. 

My sample XML file looks like this.    

<ichicsr lang="ja">   
<ichicsrmessageheader>
 <messagetype>ichicsr</messagetype>     
<messageformatversion>2.1</messageformatversion>     
<messageformatrelease>2.0</messageformatrelease>     
<messagenumb>US-Yamanouchi-W2004050033-4</messagenumb>     
<messagesenderidentifier>Yamanouchi</messagesenderidentifier>     
<messagereceiveridentifier>PMDA</messagereceiveridentifier>     

[Code]...

and so on.