Is this the IP involved: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7473348.PN.&OS=PN/7473348&RS=PN/7473348 http://brevets-patents.ic.gc.ca/opic-cipo/cpd/eng/patent/2474523/summary.html?type=number_search http://worldwide.espacenet.com/publicationDetails/inpadocPatentFamily?CC=JP&NR=2005163013A&KC=A&FT=D&ND=3&date=20050623&DB=EPODOC&locale=en_EP