Inventor
KITAGAWA NOBUYUKI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KITAGAWA NOBUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
17 patentsUS6183846B1Feb 6, 2001
Coated hard metal material
SUMITOMO ELECTRIC INDUSTRIES63 citations96
US5871850AFeb 16, 1999
Coated hard metal material
SUMITOMO ELECTRIC INDUSTRIES67 citations96
US5228812AJul 20, 1993
Throw-away tipped drill
SUMITOMO ELECTRIC INDUSTRIES97 citations96
US6077596AJun 20, 2000
Coated hard tool having multi-layer coating
SUMITOMO ELECTRIC INDUSTRIES74 citations95
US6017172AJan 25, 2000
Ceramic insert for use with clamp type cutting tool
SUMITOMO ELECTRIC INDUSTRIES76 citations95
US5981049ANov 9, 1999
Coated tool and method of manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES66 citations95
US5624766AApr 29, 1997
Cemented carbide and coated cemented carbide for cutting tool
SUMITOMO ELECTRIC INDUSTRIES44 citations92
US5403373AApr 4, 1995
Hard sintered component and method of manufacturing such a component
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US4971485ANov 20, 1990
Cemented carbide drill
SUMITOMO ELECTRIC INDUSTRIES47 citations92
US4769070ASep 6, 1988
High toughness cermet and a process for the production of the same
SUMITOMO ELECTRIC INDUSTRIES35 citations92
US5947651ASep 7, 1999
Indexable insert
SUMITOMO ELECTRIC INDUSTRIES49 citations91
US6057046AMay 2, 2000
Nitrogen-containing sintered alloy containing a hard phase
SUMITOMO ELECTRIC INDUSTRIES15 citations73
US5939651AAug 17, 1999
Titanium-based alloy
SUMITOMO ELECTRIC INDUSTRIES15 citations73
US5577424ANov 26, 1996
Nitrogen-containing sintered hard alloy
SUMITOMO ELECTRIC INDUSTRIES14 citations73
US5403374AApr 4, 1995
Watch exterior parts and manufacturing method thereof
SUMITOMO ELECTRIC INDUSTRIES16 citations70
US5603071AFeb 11, 1997
Method of preparing cemented carbide or cermet alloy
SUMITOMO ELECTRIC INDUSTRIES6 citations63
US5354534AOct 11, 1994
Method for manufacturing sintered parts
SUMITOMO ELECTRIC INDUSTRIES5 citations57