Inventor · disambiguated record
Nobuhiko Ibaraki
Also filed as: IBARAKI NOBUHIKO
16 granted patents·1 pending application·330 citations·filing 1991–2009
94Inventor score
Top patents by PatentIndex Score
17 records- 0193US6322641B1High-carbon steel wire superior in resistance to longitudinal cracking, steel product for the same, and process for production of the sameKOBE STEEL LTD·Filed 2000·Granted Nov 27, 2001·47 cites·8 claims
- 0291US5776267ASpring steel with excellent resistance to hydrogen embrittlement and fatigueKOBE STEEL LTD·Filed 1996·Granted Jul 7, 1998·68 cites·13 claims
- 0389US6800147B2High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereofKOBE STEEL LTD·Filed 2002·Granted Oct 5, 2004·18 cites·6 claims
- 0489US6372056B1Spring steel superior in workabilityKOBE STEEL LTD·Filed 1999·Granted Apr 16, 2002·34 cites·15 claims
- 0586US6645319B2Wire rod for drawing superior in twisting characteristics and method for production thereofKOBE STEEL LTD·Filed 2001·Granted Nov 11, 2003·19 cites·8 claims
- 0683US7763123B2Spring produced by a process comprising coiling a hard drawn steel wire excellent in fatigue strength and resistance to settingKOBE STEEL LTD·Filed 2009·Granted Jul 27, 2010·4 cites·28 claims
- 0781US5211772AWire rod for high strength and high toughness fine steel wire, high strength and high toughness fine steel wire, twisted products using the fine steel wires, and manufacture of the fine steel wireKOBE STEEL LTD·Filed 1991·Granted May 18, 1993·35 cites·13 claims
- 0880US5575866AHot rolled steel wire rod, fine steel wire and twisted steel wireKOBE STEEL LTD·Filed 1995·Granted Nov 19, 1996·29 cites·8 claims
- 0978US7597768B2Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring and method of making thereofKOBE STEEL LTD·Filed 2003·Granted Oct 6, 2009·10 cites·18 claims
- 1077US7615186B2Spring steel excellent in sag resistance and fatigue propertyKOBE STEEL LTD·Filed 2004·Granted Nov 10, 2009·11 cites·14 claims
- 1175US7074282B2Steel wire rod for hard drawn spring, drawn wire rod for hard drawn spring and hard drawn spring, and method for producing hard drawn springSHINKO WIRE CO LTD·Filed 2001·Granted Jul 11, 2006·14 cites·16 claims
- 1272US6605166B2Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxationKOBE STEEL LTD·Filed 2001·Granted Aug 12, 2003·11 cites·10 claims
- 1365US6206984B1Non-heat treated wire or bar steel for springsKOBE STEEL LTD·Filed 1999·Granted Mar 27, 2001·14 cites·12 claims
- 1460US5873958AHigh strength and high toughness steel wires and method for making the sameKOBE STEEL LTD·Filed 1997·Granted Feb 23, 1999·11 cites·10 claims
- 1551US8007716B2Steel wire for high strength spring excellent in workability and high strengthKOBE STEEL LTD·Filed 2004·Granted Aug 30, 2011·1 cites·7 claims
- 1639US5762724AHigh strength steel strand for prestressed concrete and method for manufacturing the sameSHINKO WIRE CO LTD·Filed 1996·Granted Jun 9, 1998·4 cites·6 claims
- 1735US2007187003A1High-strength bolt superior in delayed fracture and resistance and relaxation resistanceKOBE SEKO SHO KK·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →