Inventor
UEDA MASAHARU
JP34 patents
⚠️ This page may combine multiple inventors who share the name “UEDA MASAHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
14 patentsUS5762723AJun 9, 1998
Pearlitic steel rail having excellent wear resistance and method of producing the same
NIPPON STEEL CORP46 citations95
US5382307AJan 17, 1995
Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance
NIPPON STEEL CORP36 citations92
US6254696B1Jul 3, 2001
Bainitic type rail excellent in surface fatigue damage resistance and wear resistance
NIPPON STEEL CORP31 citations91
US5658400AAug 19, 1997
Rails of pearlitic steel with high wear resistance and toughness and their manufacturing methods
NIPPON STEEL CORP39 citations88
USRE42668ESep 6, 2011
Pearlitic steel rail having excellent wear resistance and method of producing the same
NIPPON STEEL CORP7 citations83
USRE40263EApr 29, 2008
Pearlitic steel rail having excellent wear resistance and method of producing the same
NIPPON STEEL CORP9 citations83
US5830286ANov 3, 1998
Steel rail having excellent wear resistance and internal breakage resistance, and method of producing the same
NIPPON STEEL CORP18 citations83
US7972451B2Jul 5, 2011
Pearlitic steel rail excellent in wear resistance and ductility and method for producing same
NIPPON STEEL CORP13 citations82
USRE42360EMay 17, 2011
Pearlitic steel rail having excellent wear resistance and method of producing the same
NIPPON STEEL CORP2 citations62
US12247358B2Mar 11, 2025
Rail
NIPPON STEEL CORP0 citations61
US8361246B2Jan 29, 2013
Pearlite rail
NIPPON STEEL CORP3 citations57
US7828917B2Nov 9, 2010
Rail manufacturing method
NIPPON STEEL CORP0 citations52
US12264373B2Apr 1, 2025
Rail and method of manufacturing rail
NIPPON STEEL CORP0 citations50
US10544479B2Jan 28, 2020
Heat treatment device, heat treatment method, and rail steel
NIPPON STEEL CORP0 citations50
NIPPON STEEL & SUMITOMO METAL CORP
8 patentsUS10047411B2Aug 14, 2018
Rail
NIPPON STEEL & SUMITOMO METAL CORP3 citations72
US10563357B2Feb 18, 2020
Rail and production method therefor
NIPPON STEEL & SUMITOMO METAL CORP3 citations71
US10233512B2Mar 19, 2019
Rail and production method therefor
NIPPON STEEL & SUMITOMO METAL CORP2 citations71
US9534278B2Jan 3, 2017
Rail
NIPPON STEEL & SUMITOMO METAL CORP2 citations71
US9127409B2Sep 8, 2015
Rail
NIPPON STEEL & SUMITOMO METAL CORP3 citations62
US10494704B2Dec 3, 2019
Rail
NIPPON STEEL & SUMITOMO METAL CORP1 citations60
US10995396B2May 4, 2021
Rail
NIPPON STEEL & SUMITOMO METAL CORP0 citations50
US10526674B2Jan 7, 2020
Stress-relief heat treatment apparatus
NIPPON STEEL & SUMITOMO METAL CORP0 citations39
UEDA MASAHARU
5 patentsUS8980019B2Mar 17, 2015
Steel rail and method of manufacturing the same
UEDA MASAHARU8 citations82
US8210019B2Jul 3, 2012
Method for producing pearlitic rail excellent in wear resistance and ductility
UEDA MASAHARU9 citations82
US8307281B2Nov 6, 2012
Predicting conversion candidates based on the current context and the attributes of previously selected conversion candidates
UEDA MASAHARU4 citations61
US8469284B2Jun 25, 2013
Pearlitic rail with excellent wear resistance and toughness
UEDA MASAHARU3 citations60
US9289914B2Mar 22, 2016
Image forming apparatus and cutting device
UEDA MASAHARU0 citations41