Inventor
HIROKOH MASAKI
JP3 patents
Patents
3 patentsUS6441968B1Aug 27, 2002
Zoom lens and video camera and electronic still camera using this
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US6197251B1Mar 6, 2001
Porous metal material, and method for manufacturing same
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US5229173AJul 20, 1993
Method of producing a magnetic recording media
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