Assignee
NITTAN VALVA
JP·49 granted patents·12 pending applications·166 citations·filing 1983–2021
Top patents by PatentIndex Score
61 records- 0192US11300018B2Hollow exhaust poppet valveNITTAN VALVA·Filed 2020·Granted Apr 12, 2022·6 cites·10 claims
- 0291US11536167B2Method for manufacturing engine poppet valveNITTAN VALVA·Filed 2021·Granted Dec 27, 2022·5 cites·9 claims
- 0388US10710153B2Method for filling with metallic sodiumNITTAN VALVA·Filed 2016·Granted Jul 14, 2020·3 cites·11 claims
- 0487US10316390B2Method for purifying metallic sodiumNITTAN VALVA·Filed 2016·Granted Jun 11, 2019·3 cites·5 claims
- 0587US9840948B2Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediateNITTAN VALVA·Filed 2015·Granted Dec 12, 2017·3 cites·21 claims
- 0686US4963121ALiquid pressure tensionerNITTAN VALVA·Filed 1989·Granted Oct 16, 1990·48 cites·6 claims
- 0783US9790822B2Hollow poppet valveNITTAN VALVA·Filed 2014·Granted Oct 17, 2017·7 cites·2 claims
- 0882US10173257B2Method of machining screwNITTAN VALVA·Filed 2016·Granted Jan 8, 2019·1 cites·7 claims
- 0981US10934897B2Mechanical lash adjusterNITTAN VALVA·Filed 2016·Granted Mar 2, 2021·1 cites·4 claims
- 1080US9751164B2Method of manufacturing a hollow poppet valveNITTAN VALVA·Filed 2013·Granted Sep 5, 2017·5 cites·6 claims
- 1180US9739181B2Hydraulic lash adjusterNITTAN VALVA·Filed 2014·Granted Aug 22, 2017·3 cites·3 claims
- 1278US10799957B2Chuck deviceNITTAN VALVA·Filed 2016·Granted Oct 13, 2020·3 cites·11 claims
- 1378US9163734B2Poppet valve with a formed seat, and method of makingNITTAN VALVA·Filed 2014·Granted Oct 20, 2015·5 cites·2 claims
- 1477US9920663B2Hollow poppet valveNITTAN VALVA·Filed 2013·Granted Mar 20, 2018·5 cites·8 claims
- 1577US9689506B2Hollow poppet valveNITTAN VALVA·Filed 2013·Granted Jun 27, 2017·3 cites·9 claims
- 1676US9611953B2Hollow poppet valveNITTAN VALVA·Filed 2013·Granted Apr 4, 2017·4 cites·7 claims
- 1773US10569318B2Cutting apparatus and cutting bladeNITTAN VALVA·Filed 2016·Granted Feb 25, 2020·3 cites·4 claims
- 1872US12158195B2Reduction gearNITTAN VALVA·Filed 2019·Granted Dec 3, 2024·1 cites·1 claims
- 1972US9494058B2Variable cam phaser for automobile engine and controller thereforNITTAN VALVA·Filed 2014·Granted Nov 15, 2016·2 cites·1 claims
- 2067US9175788B2Hollow poppet valveNITTAN VALVA·Filed 2012·Granted Nov 3, 2015·3 cites·7 claims
- 2164US2019145287A1Valve Mechanism and Mechanical Lash AdjusterNITTAN VALVA·Filed 2017·Application pending·0 cites
- 2263US7954468B2Mechanical adjusterNITTAN VALVA·Filed 2006·Granted Jun 7, 2011·3 cites·4 claims
- 2360US9657384B2DLC film coating and coated valve lifterNITTAN VALVA·Filed 2013·Granted May 23, 2017·0 cites·4 claims
- 2460US9371915B2Poppet valve with a formed seat, and method of makingNITTAN VALVA·Filed 2015·Granted Jun 21, 2016·1 cites·2 claims
- 2557US10451162B2Torque transmission deviceNITTAN VALVA·Filed 2015·Granted Oct 22, 2019·1 cites·8 claims
- 2657US2017072457A1Bar material transfer method and conveyorNITTAN VALVA·Filed 2016·Application pending·0 cites
- 2756US10252307B2Highly-viscous substance dispensing method and highly-viscous substance dispensing apparatusNITTAN VALVA·Filed 2015·Granted Apr 9, 2019·0 cites·16 claims
- 2856US6679478B2Hollow poppet valve and method for manufacturing the sameNITTAN VALVA·Filed 2001·Granted Jan 20, 2004·7 cites·10 claims
- 2956US2016276960A1Internal combustion engine with power-generating memberNITTAN VALVA·Filed 2013·Application pending·0 cites
- 3055US9340372B2Workpiece inspection equipmentNITTAN VALVA·Filed 2013·Granted May 17, 2016·2 cites·10 claims
- 3154US9339872B2Machining apparatus and deburring deviceNITTAN VALVA·Filed 2014·Granted May 17, 2016·1 cites·13 claims
- 3254US8001938B2Valve control apparatus for engineNITTAN VALVA·Filed 2006·Granted Aug 23, 2011·2 cites·6 claims
- 3352US8381694B2Engine valve controllerNITTAN VALVA·Filed 2008·Granted Feb 26, 2013·2 cites·7 claims
- 3451US4621598AHydraulic lash adjustor in a valve operating mechanismNITTAN VALVA·Filed 1983·Granted Nov 11, 1986·11 cites·5 claims
- 3549US11298776B2Friction welding method and friction welding apparatusNITTAN VALVA·Filed 2019·Granted Apr 12, 2022·0 cites·12 claims
- 3649US10352203B2Hydraulic lash adjuster and method for using hydraulic lash adjusterNITTAN VALVA·Filed 2014·Granted Jul 16, 2019·0 cites·5 claims
- 3749US10301979B2Hydraulic lash adjusterNITTAN VALVA·Filed 2013·Granted May 28, 2019·0 cites·2 claims
- 3849US9334977B2Engine valveNITTAN VALVA·Filed 2012·Granted May 10, 2016·0 cites·2 claims
- 3949US2016285392A1Internal combustion engine with power-generating memberNITTAN VALVA·Filed 2014·Application pending·0 cites
- 4048US10029298B2Bar material transfer method and conveyorNITTAN VALVA·Filed 2013·Granted Jul 24, 2018·0 cites·11 claims
- 4147US11143063B2Cylinder head and engineNITTAN VALVA·Filed 2016·Granted Oct 12, 2021·0 cites·20 claims
- 4247US10804780B2Hollow single-phase induction motorNITTAN VALVA·Filed 2018·Granted Oct 13, 2020·0 cites·4 claims
- 4347US10473622B2Method and apparatus for flaw inspection of friction-weld part of stem in engine valveNITTAN VALVA·Filed 2018·Granted Nov 12, 2019·0 cites·5 claims
- 4447US6378543B1Hollow poppet valve and the method for manufacturing the sameNITTAN VALVA·Filed 1999·Granted Apr 30, 2002·13 cites·3 claims
- 4544US2016047425A1Clutch, clutch forming punch, and method of manufacturing clutchNITTAN VALVA·Filed 2013·Application pending·0 cites
- 4644US2020088093A1Wastegate valveNITTAN VALVA·Filed 2016·Application pending·0 cites
- 4743USRE47823EDirect-acting valve lifter of internal combustion engineNITTAN VALVA·Filed 2018·Granted Jan 21, 2020·0 cites·8 claims
- 4843US2020240466A1Multirow Ball Bearing and Manufacturing Method ThereforNITTAN VALVA·Filed 2020·Application pending·0 cites
- 4943US2016348546A1Poppet valveNITTAN VALVA·Filed 2014·Application pending·0 cites
- 5041US9803518B2Hydraulic lash adjusterNITTAN VALVA·Filed 2015·Granted Oct 31, 2017·0 cites·2 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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