Inventor
SHIMIZUGAWA RYOICHI
JP4 patents
⚠️ This page may combine multiple inventors who share the name “SHIMIZUGAWA RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JAPAN METALS & CHEM CO LTD
3 patentsUS5749935AMay 12, 1998
Manganese fertilizer
JAPAN METALS & CHEM CO LTD20 citations85
US5938910AAug 17, 1999
Electrolytic manganese dioxide and method of manufacturing the same
JAPAN METALS & CHEM CO LTD5 citations69
US5746902AMay 5, 1998
Electrolytic manganese dioxide and method of manufacturing the same
JAPAN METALS & CHEM CO LTD14 citations69