Inventor · disambiguated record
Sayaka Nagamatsu
Also filed as: NAGAMATSU SAYAKA
2 granted patents·3 pending applications·1 citations·filing 2008–2016
33Inventor score
Top patents by PatentIndex Score
5 records- 0174US8382918B2Steel wire material for spring and its producing methodKOBE STEEL LTD·Filed 2011·Granted Feb 26, 2013·1 cites·25 claims
- 0260US2017022580A1High-strength spring steelKOBE STEEL LTD·Filed 2016·Application pending·0 cites
- 0357US2009020189A1Steel wire material for spring and its producing methodKOBE STEEL LTD·Filed 2008·Application pending·0 cites
- 0451US9587288B2Gear having excellent seizing resistanceKOBE STEEL LTD·Filed 2013·Granted Mar 7, 2017·0 cites·20 claims
- 0546US2012285585A1High-strength spring steelNAGAMATSU SAYAKA·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →