Inventor
OKADA TOSHITERU
JP3 patents
Patents
3 patentsUS4581219AApr 8, 1986
Method of making macroporous manganese dioxide
MITSUI MINING & SMELTING CO60 citations91
US4551254ANov 5, 1985
Macroporous manganese dioxide water purifier
MITSUI MINING & SMELTING CO64 citations91
US4548684AOct 22, 1985
Treatment of manganese nodules
MITSUI MINING & SMELTING CO0 citations48