Inventor · disambiguated record
Susumu Otsuka
Also filed as: OTSUKA SUSUMU
3 granted patents·12 citations·filing 1976–2001
63Inventor score
Top patents by PatentIndex Score
3 records- 0151US6509490B2Method of purifying isophthalonitrileMITSUBISHI GAS CHEMICAL CO·Filed 2001·Granted Jan 21, 2003·1 cites·5 claims
- 0241US4354881AMethod for antirust treatment of steel stocksNIPPON STEEL CORP·Filed 1980·Granted Oct 19, 1982·8 cites·3 claims
- 0334US4104419ASurface treatment of a tin-plateNIPPON STEEL CORP·Filed 1976·Granted Aug 1, 1978·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →