Inventor · disambiguated record
Ryoji Hirota
Also filed as: HIROTA RYOJI
7 granted patents·34 citations·filing 1992–2015
79Inventor score
Top patents by PatentIndex Score
7 records- 0178US6599376B2FE-CR soft magnetic material and a method of manufacturing thereofNISSHIN STEEL CO LTD·Filed 2001·Granted Jul 29, 2003·12 cites·2 claims
- 0271US10125404B2Method for producing high elastic limit nonmagnetic steel material using an austenitic stainless steel sheetNISSHIN STEEL CO LTD·Filed 2014·Granted Nov 13, 2018·1 cites·10 claims
- 0348US6222286B1Stepping motor with rust inhibiting and eddy current minimizing characteristicsNISSHIN STEEL CO LTD·Filed 1996·Granted Apr 24, 2001·16 cites·8 claims
- 0446US9921130B2Fatigue testing deviceNISSHIN STEEL CO LTD·Filed 2014·Granted Mar 20, 2018·0 cites·6 claims
- 0542US10371261B2Martensitic stainless-steel sheet and metal gasketNIPPON STEEL NISSHIN CO LTD·Filed 2015·Granted Aug 6, 2019·0 cites·7 claims
- 0640US10060003B2Austenitic stainless steel sheet and metal gasketNISSHIN STEEL CO LTD·Filed 2015·Granted Aug 28, 2018·0 cites·6 claims
- 0735US5211771ASoft magnetic alloy materialNISSHIN STEEL CO LTD·Filed 1992·Granted May 18, 1993·5 cites·16 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →