Assignee
NIPPON TUNGSTEN
37 granted patents·6 pending applications·427 citations·filing 1976–2024
Top patents by PatentIndex Score
43 records- 0182US10391663B2Roll for rotary cutter and rotary cutterNIPPON TUNGSTEN·Filed 2017·Granted Aug 27, 2019·3 cites·15 claims
- 0282US4108652AMethod for producing a sintered body of high densityNIPPON TUNGSTEN·Filed 1976·Granted Aug 22, 1978·33 cites·30 claims
- 0381US11434174B2Member for plasma processing apparatus, plasma processing apparatus with the same and method for using sintered bodyNIPPON TUNGSTEN·Filed 2020·Granted Sep 6, 2022·1 cites·14 claims
- 0481US4063908AProcess for manufacturing ceramic cutting tool materialsNIPPON TUNGSTEN·Filed 1976·Granted Dec 20, 1977·30 cites·4 claims
- 0580US5592647APTC panel heater with small rush current characteristic and highly heat insulating region corresponding to heater location to prevent local overheatingNIPPON TUNGSTEN·Filed 1991·Granted Jan 7, 1997·35 cites·6 claims
- 0680US4582812AAluminum oxide substrate material for magnetic head and method for producing the sameNIPPON TUNGSTEN·Filed 1984·Granted Apr 15, 1986·21 cites·11 claims
- 0775US4430279AProcess for producing zirconia yttria grinding media used for grinding magnetic coating powderNIPPON TUNGSTEN·Filed 1983·Granted Feb 7, 1984·30 cites·2 claims
- 0875US4280841AMethod for manufacturing a mechanical seal ringNIPPON TUNGSTEN·Filed 1978·Granted Jul 28, 1981·19 cites·7 claims
- 0973US4356272ASintered bodies Al2 O3 -TiC-TiO2 continuing yttrium (y)NIPPON TUNGSTEN·Filed 1981·Granted Oct 26, 1982·29 cites·6 claims
- 1072US5119863AWater jet nozzle for loomNIPPON TUNGSTEN·Filed 1989·Granted Jun 9, 1992·11 cites·11 claims
- 1171US7518137B2Shield materialNIPPON TUNGSTEN·Filed 2003·Granted Apr 14, 2009·8 cites·11 claims
- 1268US9120704B2Dielectric layer for electrostatic chuck and electrostatic chuckNIPPON TUNGSTEN·Filed 2013·Granted Sep 1, 2015·2 cites·10 claims
- 1366US9079800B2Composite ceramic body, and component member for semiconductor manufacturing apparatusNIPPON TUNGSTEN·Filed 2013·Granted Jul 14, 2015·2 cites·8 claims
- 1466US5804797APTC planar heater and method for adjusting the resistance of the sameNIPPON TUNGSTEN·Filed 1995·Granted Sep 8, 1998·31 cites·12 claims
- 1562US5545248ATitanium-base hard sintered alloyNIPPON TUNGSTEN·Filed 1995·Granted Aug 13, 1996·21 cites·3 claims
- 1662US2019337183A1Roll for rotary cutter and rotary cutterNIPPON TUNGSTEN·Filed 2019·Application pending·0 cites
- 1759US6279443B1Die cut rollNIPPON TUNGSTEN·Filed 1998·Granted Aug 28, 2001·23 cites·25 claims
- 1859US4478871AMethod for hardfacing a ferrous base materialNIPPON TUNGSTEN·Filed 1983·Granted Oct 23, 1984·14 cites·11 claims
- 1957US2024351233A1Rotary cutter unitNIPPON TUNGSTEN·Filed 2024·Application pending·0 cites
- 2056US11548827B2Member for plasma processing apparatus and plasma processing apparatus with the sameNIPPON TUNGSTEN·Filed 2020·Granted Jan 10, 2023·0 cites·8 claims
- 2155US7304105B2High-density composite materialNIPPON TUNGSTEN·Filed 2002·Granted Dec 4, 2007·3 cites·11 claims
- 2254US4249914ACutting tool material and method for producing cutting tool materialNIPPON TUNGSTEN·Filed 1978·Granted Feb 10, 1981·12 cites·4 claims
- 2351US5167697ASubstrate material for mounting semiconductor device thereon and manufacturing method thereofNIPPON TUNGSTEN·Filed 1991·Granted Dec 1, 1992·29 cites·5 claims
- 2450US4987930AAuxiliary sub-nozzle for fluid jet loomNIPPON TUNGSTEN·Filed 1988·Granted Jan 29, 1991·5 cites·16 claims
- 2549US6551954B1WC-base composite ceramic sintered compactNIPPON TUNGSTEN·Filed 2000·Granted Apr 22, 2003·3 cites·5 claims
- 2648US4874725AHigh-density sintered article of silicon carbidNIPPON TUNGSTEN·Filed 1987·Granted Oct 17, 1989·10 cites·11 claims
- 2745US2009120155A1Shaping Tool and Methods of Using the SameNIPPON TUNGSTEN·Filed 2006·Application pending·0 cites
- 2843US4438213AMagnetic head slider material and method for producing the sameNIPPON TUNGSTEN·Filed 1982·Granted Mar 20, 1984·5 cites·1 claims
- 2943US4422874AGolden sintered alloy for ornamental purposeNIPPON TUNGSTEN·Filed 1982·Granted Dec 27, 1983·10 cites·2 claims
- 3043US2011174125A1Method of shearing thin plateNIPPON TUNGSTEN·Filed 2009·Application pending·0 cites
- 3142US10493649B2Anvil roll, rotary cutter, and method for cutting workpieceNIPPON TUNGSTEN·Filed 2017·Granted Dec 3, 2019·0 cites·7 claims
- 3241US4014140AHigh-precision chamferring apparatusNIPPON TUNGSTEN·Filed 1976·Granted Mar 29, 1977·7 cites·3 claims
- 3341US2010143749A1Substrate material for magnetic head and method for manufacturing the sameNIPPON TUNGSTEN·Filed 2007·Application pending·0 cites
- 3439US9293154B2Substrates for thin-film magnetic heads, magnetic head sliders, and hard disk drive devicesNIPPON TUNGSTEN·Filed 2015·Granted Mar 22, 2016·0 cites·4 claims
- 3539US9293156B2Substrates for thin-film magnetic heads, magnetic head sliders, and hard disk drive devicesNIPPON TUNGSTEN·Filed 2015·Granted Mar 22, 2016·0 cites·5 claims
- 3639US9293155B2Substrates for thin-film magnetic heads, magnetic head sliders, and hard disk drive devicesNIPPON TUNGSTEN·Filed 2015·Granted Mar 22, 2016·0 cites·8 claims
- 3738US2007172378A1Tungsten based sintered compact and method for production thereofNIPPON TUNGSTEN·Filed 2005·Application pending·0 cites
- 3837US5914285ASubstrate material for a magnetic headNIPPON TUNGSTEN·Filed 1997·Granted Jun 22, 1999·5 cites·5 claims
- 3936US5886269ASubstrate and heat sink for a semiconductor and method of manufacturing the sameNIPPON TUNGSTEN·Filed 1996·Granted Mar 23, 1999·11 cites·4 claims
- 4035US6133182AAlumina base ceramic sintered body and its manufacturing methodNIPPON TUNGSTEN·Filed 1998·Granted Oct 17, 2000·6 cites·7 claims
- 4132US5649571ASub-nozzle in an air injection type weaving machineNIPPON TUNGSTEN·Filed 1994·Granted Jul 22, 1997·5 cites·3 claims
- 4228US5093290ASilicon nitride type sintered bodies and method for producing the sameNIPPON TUNGSTEN·Filed 1989·Granted Mar 3, 1992·3 cites·7 claims
- 4314US4292078AElectrical contact materialNIPPON TUNGSTEN·Filed 1979·Granted Sep 29, 1981·0 cites·1 claims
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