Inventor
HOSHI MASARU
JP3 patents
Patents
3 patentsUS5173189ADec 22, 1992
Membrane for separating an organic solvent from a water-organic solvent mixture
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US6190683B1Feb 20, 2001
Blackhead-removing face pack sheet
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US6562357B2May 13, 2003
Blackhead removing sheet and method for producing blackhead removing sheet
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