Assignee
NETUREN CO LTD
109 granted patents·40 pending applications·522 citations·filing 1975–2025
Top patents by PatentIndex Score
149 records- 0196US10612642B2Method for manufacturing rack and hollow rack barNETUREN CO LTD·Filed 2018·Granted Apr 7, 2020·8 cites·8 claims
- 0295US4336081AProcess of preparing steel coil springNETUREN CO LTD·Filed 1981·Granted Jun 22, 1982·57 cites·7 claims
- 0393US12011775B2Steel joined body and method for manufacturing the sameNETUREN CO LTD·Filed 2022·Granted Jun 18, 2024·2 cites·10 claims
- 0492US10562138B2Method for manufacturing rack barNETUREN CO LTD·Filed 2016·Granted Feb 18, 2020·6 cites·6 claims
- 0590US10443108B2Jig and heating apparatus with a jigNETUREN CO LTD·Filed 2016·Granted Oct 15, 2019·2 cites·14 claims
- 0686US12246389B2Steel joined body and method for manufacturing the sameNETUREN CO LTD·Filed 2024·Granted Mar 11, 2025·0 cites·2 claims
- 0785US10973090B2Induction heating power supply apparatusNETUREN CO LTD·Filed 2016·Granted Apr 6, 2021·5 cites·4 claims
- 0884US12383974B2Steel joined body and method for manufacturing the sameNETUREN CO LTD·Filed 2023·Granted Aug 12, 2025·0 cites·5 claims
- 0984US6080954AHeat treatment method and apparatus using thermal plasma, and heat treated substance produced therebyNETUREN CO LTD·Filed 1997·Granted Jun 27, 2000·20 cites·7 claims
- 1083US7648600B2Heat treating device and heat treating methodNETUREN CO LTD·Filed 2009·Granted Jan 19, 2010·5 cites·7 claims
- 1183US6156993AHeat treatment method and apparatus using thermal plasma, and heat treated substance produced therebyNETUREN CO LTD·Filed 2000·Granted Dec 5, 2000·14 cites·17 claims
- 1282US4665296AMethod of and apparatus for igniting a high-frequency torch to create a high-temperature plasma of high purityNETUREN CO LTD·Filed 1984·Granted May 12, 1987·37 cites·3 claims
- 1382US2023127364A1Cooling simulation method, cooling simulation program, cooling simulation device, and method of cooling workpieceNETUREN CO LTD·Filed 2022·Application pending·0 cites
- 1480US9907118B2Current applying apparatus, current applying method and direct resistance heating apparatusNETUREN CO LTD·Filed 2013·Granted Feb 27, 2018·5 cites·13 claims
- 1580US9328815B2Rack bar and rack bar teeth forming dieNETUREN CO LTD·Filed 2013·Granted May 3, 2016·6 cites·5 claims
- 1680US2023241690A1Machining apparatusNETUREN CO LTD·Filed 2022·Application pending·0 cites
- 1780US2024351094A1Apparatus and method for manufacturing rack barNETUREN CO LTD·Filed 2024·Application pending·0 cites
- 1879US9410320B2Reinforced concrete structureNETUREN CO LTD·Filed 2015·Granted Aug 9, 2016·8 cites·4 claims
- 1978US11291087B2Heating apparatus and heating methodNETUREN CO LTD·Filed 2019·Granted Mar 29, 2022·2 cites·2 claims
- 2076US9316294B2Rack bar and rack bar teeth forming dieNETUREN CO LTD·Filed 2013·Granted Apr 19, 2016·3 cites·4 claims
- 2176US2023345588A1Induction heating device, induction heating equipment, induction heating method, and heat treatment methodNETUREN CO LTD·Filed 2023·Application pending·0 cites
- 2275US6925899B2Hollow steering rack bar and its manufacturing methodNETUREN CO LTD·Filed 2002·Granted Aug 9, 2005·20 cites·43 claims
- 2374US4881722AApparatus for producing superfine particleNETUREN CO LTD·Filed 1989·Granted Nov 21, 1989·31 cites·5 claims
- 2473US7442906B2Induction heating coil for shaft member having multiple steps and heating methodNETUREN CO LTD·Filed 2005·Granted Oct 28, 2008·6 cites·4 claims
- 2573US7119309B2Liquid phase diffusion bonding method for dissimilar metal sheets and liquid phase diffusion bonding apparatus for the sameNETUREN CO LTD·Filed 2005·Granted Oct 10, 2006·5 cites·4 claims
- 2673US4407683ASteel for cold plastic workingNETUREN CO LTD·Filed 1982·Granted Oct 4, 1983·16 cites·10 claims
- 2773US2025222523A1Machining apparatusNETUREN CO LTD·Filed 2025·Application pending·0 cites
- 2873US2025222522A1Machining apparatusNETUREN CO LTD·Filed 2025·Application pending·0 cites
- 2973US2025222521A1Machining apparatusNETUREN CO LTD·Filed 2025·Application pending·0 cites
- 3072US12053816B2Apparatus and method for manufacturing rack barNETUREN CO LTD·Filed 2019·Granted Aug 6, 2024·0 cites·4 claims
- 3172US11031881B2Output current synthesizer and power supply apparatusNETUREN CO LTD·Filed 2018·Granted Jun 8, 2021·2 cites·13 claims
- 3272US10356854B2Power conversion apparatus and power conversion methodNETUREN CO LTD·Filed 2014·Granted Jul 16, 2019·2 cites·6 claims
- 3372US6328829B1Constrained hardening method and apparatus for deformed bar workpiecesNETUREN CO LTD·Filed 1999·Granted Dec 11, 2001·18 cites·13 claims
- 3471US12245347B2Induction heating system, induction heating method, output monitoring apparatus, output monitoring method, and induction heating apparatusNETUREN CO LTD·Filed 2021·Granted Mar 4, 2025·0 cites·5 claims
- 3571US2019030584A1Heating method, heating apparatus, and hot press molding method for plate workpieceNETUREN CO LTD·Filed 2018·Application pending·0 cites
- 3670US12116644B2Cooling jacket and quenching apparatusNETUREN CO LTD·Filed 2022·Granted Oct 15, 2024·0 cites·5 claims
- 3770US10897795B2Induction heating power supply apparatusNETUREN CO LTD·Filed 2016·Granted Jan 19, 2021·2 cites·3 claims
- 3870US10648052B2Induction hardening apparatus, induction hardening method, induction heating coil, heat treatment apparatus, and heat treatment methodNETUREN CO LTD·Filed 2016·Granted May 12, 2020·0 cites·10 claims
- 3970US10159117B2Induction heating system, induction heating method, output monitoring apparatus, output monitoring method, and induction heating apparatusNETUREN CO LTD·Filed 2013·Granted Dec 18, 2018·2 cites·4 claims
- 4068US11729868B2Induction heating device, induction heating equipment, induction heating method, and heat treatment methodNETUREN CO LTD·Filed 2020·Granted Aug 15, 2023·0 cites·1 claims
- 4168US2025179606A1Cooling simulation method, cooling simulation program, cooling simulation device, and method of cooling workpieceNETUREN CO LTD·Filed 2025·Application pending·0 cites
- 4268US2020139494A1Method for manufacturing rack barNETUREN CO LTD·Filed 2019·Application pending·0 cites
- 4367US9926616B2Heating apparatus, heat treatment apparatus, and heating methodNETUREN CO LTD·Filed 2016·Granted Mar 27, 2018·0 cites·2 claims
- 4466US10654092B2Method and apparatus for manufacturing stepped memberNETUREN CO LTD·Filed 2016·Granted May 19, 2020·1 cites·2 claims
- 4566US6494073B2Method and apparatus for production of hollowed rack barsNETUREN CO LTD·Filed 2000·Granted Dec 17, 2002·13 cites·8 claims
- 4666US5492308AConstrained quenching apparatus and heat treatment apparatusNETUREN CO LTD·Filed 1994·Granted Feb 20, 1996·13 cites·10 claims
- 4766US2020039571A1Hollow rack bar and method of manufacturing the hollow rack barNETUREN CO LTD·Filed 2019·Application pending·0 cites
- 4864US10138531B2Induction hardening control systemNETUREN CO LTD·Filed 2014·Granted Nov 27, 2018·0 cites·13 claims
- 4964US4705580ACutting method to be applied to producing helical springs by cold-forming thick high-strength wireNETUREN CO LTD·Filed 1986·Granted Nov 10, 1987·20 cites·3 claims
- 5062US11247263B2Method for manufacturing rack barNETUREN CO LTD·Filed 2018·Granted Feb 15, 2022·1 cites·2 claims
Showing the top 50 of 149 patent records by PatentIndex Score.
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