Inventor · disambiguated record
Takashi Sumigama
Also filed as: SUMIGAMA TAKASHI
5 granted patents·70 citations·filing 1993–1999
81Inventor score
Top patents by PatentIndex Score
5 records- 0180US5389689AMethod of producing dimethyl etherKAORU FUJIMOTO·Filed 1993·Granted Feb 14, 1995·23 cites·5 claims
- 0273US5466720AMethod of producing dimethyl etherFUJIMOTO KAORU·Filed 1994·Granted Nov 14, 1995·15 cites·3 claims
- 0369US6090342AStave for metallurgical furnaceNIPPON KOKAN KK·Filed 1999·Granted Jul 18, 2000·15 cites·14 claims
- 0460US6258315B1Furnace body structural member for metallurgical shaft furnaceNIPPON KOKAN KK·Filed 1998·Granted Jul 10, 2001·10 cites·13 claims
- 0544US5698010AScrap melting methodNIPPON KOKAN KK·Filed 1995·Granted Dec 16, 1997·7 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →