Inventor · disambiguated record
Yoshio Tarutani
Also filed as: TARUTANI YOSHIO
12 granted patents·5 pending applications·247 citations·filing 1981–2018
91Inventor score
Files withSUMITOMO METAL IND8NIPPON STEEL & SUMITOMO METAL CORP6ISHIHARA SANGYO KAISHA1KANBE MOTOMICHI1NIPPON STEEL STAINLESS STEEL CORP1
Top patents by PatentIndex Score
17 records- 0194US6379476B1Stainless steel product for producing polymer electrode fuel cellSUMITOMO METAL IND·Filed 2000·Granted Apr 30, 2002·115 cites·28 claims
- 0290US4721600ASuperplastic ferrous duplex-phase alloy and a hot working method thereforSUMITOMO METAL IND·Filed 1986·Granted Jan 26, 1988·28 cites·10 claims
- 0384US4581202ASintered stainless steel and production process thereforSUMITOMO METAL IND·Filed 1985·Granted Apr 8, 1986·32 cites·24 claims
- 0481US4360381AFerritic stainless steel having good corrosion resistanceSUMITOMO METAL IND·Filed 1981·Granted Nov 23, 1982·26 cites·25 claims
- 0573US7776486B2Titanium-based material for fuel cell separators and a method for the production thereofSUMITOMO METAL IND·Filed 2007·Granted Aug 17, 2010·2 cites·10 claims
- 0666US5944917AStainless steel for ozone added water and manufacturing method thereofSUMITOMO METAL IND·Filed 1997·Granted Aug 31, 1999·20 cites·19 claims
- 0758US4770703ASintered stainless steel and production process thereforSUMITOMO METAL IND·Filed 1985·Granted Sep 13, 1988·12 cites·6 claims
- 0857US4812177AHot working method for producing a superplastic ferrous duplex-phase alloySUMITOMO METAL IND·Filed 1988·Granted Mar 14, 1989·7 cites·12 claims
- 0954US10622643B2Carbon separator for solid polymer fuel cell, solid polymer fuel cell, and solid polymer fuel cell stackNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Apr 14, 2020·0 cites·12 claims
- 1053US11535915B2Stainless steel material, constituting component, cell, and fuel cell stackNIPPON STEEL STAINLESS STEEL CORP·Filed 2018·Granted Dec 27, 2022·0 cites·7 claims
- 1144US2018053948A1Separator for polymer electrolyte fuel cell and method for producing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Application pending·0 cites
- 1244US2018034069A1Ferritic stainless steel material, separator, polymer electrolyte fuel cell, and method for producing separatorNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Application pending·0 cites
- 1342US2017301929A1Ferritic stainless steel material, and, separator for solid polymer fuel cell and solid polymer fuel cell which uses the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Application pending·0 cites
- 1441US5449579AColored metal plate and process for manufacturing sameISHIHARA SANGYO KAISHA·Filed 1994·Granted Sep 12, 1995·5 cites·20 claims
- 1541US2018034070A1Stainless steel sheet for polymer electrolyte fuel cell separatorNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Application pending·0 cites
- 1639US2017298488A1Ferritic stainless steel material, and, separator for solid polymer fuel cell and solid polymer fuel cell which uses the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Application pending·0 cites
- 1715US8100313B2Source blank for stainless steel three-ply clad sheet, production methods of clad steel plate and sheet for solid polymer type fuel cell separator, and solid polymer type fuel cell separatorKANBE MOTOMICHI·Filed 2008·Granted Jan 24, 2012·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →