Inventor
OKUBO JUNICHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “OKUBO JUNICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL & SUMITOMO METAL CORP
19 patentsUS9731341B2Aug 15, 2017
Forged crankshaft and method for manufacturing the forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP4 citations71
US9707618B2Jul 18, 2017
Apparatus for forming a blank for finish forging for a forged crankshaft for a three-cylinder engine and method for manufacturing a forged crankshaft for a three-cylinder engine using the same
NIPPON STEEL & SUMITOMO METAL CORP2 citations68
US10391546B2Aug 27, 2019
Method for producing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP1 citations58
US11045864B2Jun 29, 2021
Method for producing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations51
US9937550B2Apr 10, 2018
Method of manufacturing die forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations45
US10875083B2Dec 29, 2020
Apparatus and method for manufacturing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10828693B2Nov 10, 2020
Apparatus for manufacturing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10464120B2Nov 5, 2019
Method for producing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10441995B2Oct 15, 2019
Method for producing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10413965B2Sep 17, 2019
Method for producing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10350671B2Jul 16, 2019
Method for producing a forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10124398B2Nov 13, 2018
Method for producing a forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10086425B2Oct 2, 2018
Method for producing a forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10058912B2Aug 28, 2018
Method for producing a forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10029297B2Jul 24, 2018
Apparatus for forming a blank for finish forging for a forged crankshaft for a three-cylinder engine and method for manufacturing a forged crankshaft for a three-cylinder engine using the same
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10005122B2Jun 26, 2018
Apparatus for forming a blank for finish forging for a forged crankshaft for a straight-6-cylinder engine and method for manufacturing a forged crankshaft for a straight-6-cylinder engine using the same
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10005121B2Jun 26, 2018
Apparatus for forming a blank for finish forging for a forged crankshaft for a 4-cylinder engine, and method for manufacturing a forged crankshaft for a 4-cylinder engine using the same
NIPPON STEEL & SUMITOMO METAL CORP0 citations40
US10456828B2Oct 29, 2019
Method for producing forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations37
US9630239B2Apr 25, 2017
Apparatus for forming a blank for finish forging for a forged crankshaft
NIPPON STEEL & SUMITOMO METAL CORP0 citations37