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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →