Inventor · disambiguated record
Kiyonori Tokuno
Also filed as: TOKUNO KIYONORI
14 granted patents·4 pending applications·28 citations·filing 2001–2019
86Inventor score
Files withNIPPON STEEL & SUMITOMO METAL CORP7NIPPON STEEL CORP5KANEKO MICHIO3OTSUKA HIROAKI1TAKAHASHI KAZUHIRO1
Top patents by PatentIndex Score
18 records- 0178US6863987B2Titanium resistant to discoloration in atmospheric environment and process of production of sameNIPPON STEEL CORP·Filed 2001·Granted Mar 8, 2005·14 cites·16 claims
- 0275US7547671B2Discoloration removal cleaning agent for titanium and titanium alloy building materials, and discoloration removal cleaning methodNIPPON STEEL CORP·Filed 2003·Granted Jun 16, 2009·9 cites·25 claims
- 0365US8865612B2Titanium-based material having visible light response and excellent in photocatalytic activity and method of production of sameKANEKO MICHIO·Filed 2010·Granted Oct 21, 2014·2 cites·14 claims
- 0460US7594973B2Titanium material less susceptible to discoloration and method for production thereofNIPPON STEEL CORP·Filed 2001·Granted Sep 29, 2009·3 cites·2 claims
- 0559US8603268B2Titanium material for solid polymer fuel cell separator having low contact resistance and method of production of sameTAKAHASHI KAZUHIRO·Filed 2009·Granted Dec 10, 2013·0 cites·13 claims
- 0653US2021347011A1Manufacturing method of materialNIPPON STEEL CORP·Filed 2019·Application pending·0 cites
- 0752US11760887B2Titanium materialNIPPON STEEL CORP·Filed 2018·Granted Sep 19, 2023·0 cites·16 claims
- 0852US10074857B2Titanium or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and manufacturing method thereforNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Sep 11, 2018·0 cites·15 claims
- 0951US8785031B2Polymer electrolyte fuel cell separator made of pure titanium or titanium alloy and method of production of sameKANEKO MICHIO·Filed 2007·Granted Jul 22, 2014·0 cites·1 claims
- 1050US2015325864A1Titanium or titanium alloy for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and fuel cellNIPPON STEEL & SUMITOMO METAL CORP·Filed 2014·Application pending·0 cites
- 1148US9947942B2Titanium material or titanium alloy material for fuel cell separator having high contact conductivity with carbon and high durability, fuel cell separator including the same, and fuel cellNIPPON STEEL & SUMITOMO METAL CORP·Filed 2014·Granted Apr 17, 2018·0 cites·7 claims
- 1248US9885102B2Colored pure titanium or titanium alloy having low susceptibility to discoloration in atmospheric environmentKANEKO MICHIO·Filed 2006·Granted Feb 6, 2018·0 cites·2 claims
- 1348US9065081B2Titanium material for solid polymer fuel cell separator use and method of production of sameTANAKA KOKI·Filed 2010·Granted Jun 23, 2015·0 cites·4 claims
- 1445US10305119B2Titanium material or titanium alloy material having surface electrical conductivity and method for producing the same, and fuel cell separator and fuel cell using the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted May 28, 2019·0 cites·6 claims
- 1544US10033052B2Titanium material or titanium alloy material having surface electrical conductivity, and fuel cell separator and fuel cell using the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Jul 24, 2018·0 cites·3 claims
- 1640US2016336600A1Composite metal foil for fuel cell separator, fuel cell separator, fuel cell, and method for producing composite metal foil for fuel cell separatorNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Application pending·0 cites
- 1735US9011976B2Titanium sheet covered with protective film superior in high temperature oxidation resistance and high temperature salt damage resistance, automobile exhaust system using same, and methods of production of sameOTSUKA HIROAKI·Filed 2006·Granted Apr 21, 2015·0 cites·5 claims
- 1835US2017077527A1Titanium material for separator of solid polymer fuel cell, separator using same, and solid polymer fuel cell comprising sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Kiyonori Tokuno files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →