Inventor · disambiguated record

Masatake Yoshikawa

Also filed as: YOSHIKAWA MASATAKE

2 granted patents·39 citations·filing 1978–1985

62Inventor score

Technology areasC07C C09K

Files withDAINIPPON TORYO KK1 KASEI OPTONIX1

Top patents by PatentIndex Score

2 records

0186US4650652AProcess for recovering highly pure rare earth oxides from a waste rare earth phosphorKASEI OPTONIX·Filed 1985·Granted Mar 17, 1987·31 cites·10 claims
0239US4128498AChlorosilicate phosphorDAINIPPON TORYO KK·Filed 1978·Granted Dec 5, 1978·8 cites·2 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →