Assignee
KITZ CORP
JP·87 granted patents·8 pending applications·1,084 citations·filing 1980–2024
Top patents by PatentIndex Score
95 records- 0192US4801158APipe jointKITZ CORP·Filed 1987·Granted Jan 31, 1989·121 cites·11 claims
- 0290US11428326B2Centric butterfly valveKITZ CORP·Filed 2019·Granted Aug 30, 2022·4 cites·9 claims
- 0390US9546736B2Trunnion ball valve for high pressure, and hydrogen stationKITZ CORP·Filed 2013·Granted Jan 17, 2017·9 cites·16 claims
- 0490US6599378B1Copper-based alloy, method for production of the alloy, and products using the alloyKITZ CORP·Filed 2000·Granted Jul 29, 2003·39 cites·3 claims
- 0588US4846221ABall valve with built-in check valveKITZ CORP·Filed 1988·Granted Jul 11, 1989·74 cites·12 claims
- 0687US11655898B2Cryogenic globe valveKITZ CORP·Filed 2019·Granted May 23, 2023·5 cites·12 claims
- 0787US9756838B2Circulation type aquaculture method and circulation type aquaculture deviceKITZ CORP·Filed 2015·Granted Sep 12, 2017·16 cites·9 claims
- 0887US6308731B1Vent valveKITZ CORP·Filed 2000·Granted Oct 30, 2001·46 cites·28 claims
- 0986US10018276B2Trunnion-type ball valveKITZ CORP·Filed 2015·Granted Jul 10, 2018·6 cites·16 claims
- 1084US6736328B1Control system with communication function and facility control systemKITZ CORP·Filed 2000·Granted May 18, 2004·48 cites·2 claims
- 1183US5522603APacking rings, method for production of the packing rings, and seal device using the packing ringsKITZ CORP·Filed 1994·Granted Jun 4, 1996·45 cites·19 claims
- 1282US7297215B2Copper base alloy, and cast ingot and parts to be contacted with liquidKITZ CORP·Filed 2003·Granted Nov 20, 2007·15 cites·13 claims
- 1381US7806996B2Copper-based alloy, and cast ingot and liquid-contacting part each using the alloyKITZ CORP·Filed 2007·Granted Oct 5, 2010·4 cites·13 claims
- 1481US6974509B2BrassKITZ CORP·Filed 2003·Granted Dec 13, 2005·15 cites·2 claims
- 1580US12135098B2ValveKITZ CORP·Filed 2021·Granted Nov 5, 2024·1 cites·11 claims
- 1679US11761556B2Valve wear state grasping method and system using valve stem angular velocityKITZ CORP·Filed 2019·Granted Sep 19, 2023·2 cites·2 claims
- 1779US10465804B2Structure and method for fastening ball seat for ball valve, trunnion ball valve, and hydrogen station using the ball valveKITZ CORP·Filed 2015·Granted Nov 5, 2019·3 cites·8 claims
- 1879US4940562AFilter element and method for manufacture thereof and micro-filtration filter having the filter elementKITZ CORP·Filed 1988·Granted Jul 10, 1990·41 cites·14 claims
- 1977US10767768B2Trunnion-type ball valve, valve seal structure, and valve packingKITZ CORP·Filed 2016·Granted Sep 8, 2020·3 cites·14 claims
- 2076US7163192B2Actuator for valveKITZ CORP·Filed 2003·Granted Jan 16, 2007·21 cites·15 claims
- 2175US12565941B2ValveKITZ CORP·Filed 2024·Granted Mar 3, 2026·0 cites·12 claims
- 2275US6768234B2Electric actuator and fixing structure of the actuatorKITZ CORP·Filed 2001·Granted Jul 27, 2004·17 cites·16 claims
- 2374US12139430B2Wash water processing apparatus and sterilization and water-purification apparatus, and wash water processing methodKITZ CORP·Filed 2020·Granted Nov 12, 2024·1 cites·6 claims
- 2473US11698137B2Centric butterfly valveKITZ CORP·Filed 2022·Granted Jul 11, 2023·0 cites·4 claims
- 2572US6676109B2Rotary valveKITZ CORP·Filed 2003·Granted Jan 13, 2004·19 cites·2 claims
- 2672US6029693AValve driving apparatusKITZ CORP·Filed 1995·Granted Feb 29, 2000·32 cites·14 claims
- 2771US4674528AButterfly valveKITZ CORP·Filed 1986·Granted Jun 23, 1987·33 cites·2 claims
- 2870US11306014B2Wash water processing methodKITZ CORP·Filed 2018·Granted Apr 19, 2022·1 cites·2 claims
- 2970US7698991B2Spring-return, pneumatic actuatorKITZ CORP·Filed 2007·Granted Apr 20, 2010·6 cites·12 claims
- 3069US7076961B2Control system with communication function and facility control systemKITZ CORP·Filed 2004·Granted Jul 18, 2006·19 cites·2 claims
- 3167US11892097B2Valve state grasping system using motion sensor fixed to valve stemKITZ CORP·Filed 2023·Granted Feb 6, 2024·0 cites·3 claims
- 3267USD983331SFluid control valveKITZ CORP·Filed 2021·Granted Apr 11, 2023·4 cites·1 claims
- 3367US8366840B2Leadless brass alloy excellent in stress corrosion cracking resistanceKITZ CORP·Filed 2007·Granted Feb 5, 2013·1 cites·11 claims
- 3465USD748226SRotary valveKITZ CORP·Filed 2014·Granted Jan 26, 2016·12 cites·1 claims
- 3565US6623637B1Hollow-fiber membrane moduleKITZ CORP·Filed 1997·Granted Sep 23, 2003·39 cites·10 claims
- 3664US7234682B2Ball valve and method for production thereofKITZ CORP·Filed 2005·Granted Jun 26, 2007·4 cites·9 claims
- 3764US6885119B2Electric actuator and structure for fixing the sameKITZ CORP·Filed 2004·Granted Apr 26, 2005·9 cites·7 claims
- 3864US6758458B2Butterfly valveKITZ CORP·Filed 2002·Granted Jul 6, 2004·11 cites·7 claims
- 3964US4355566AValve driving apparatusKITZ CORP·Filed 1980·Granted Oct 26, 1982·18 cites·3 claims
- 4063US12072064B2Hydrogen gas filling method and hydrogen stationKITZ CORP·Filed 2020·Granted Aug 27, 2024·0 cites·7 claims
- 4163US11975995B2Wash water processing apparatus and sterilization and purification unit, and wash water processing method of semiconductor element or liquid-crystal glassesKITZ CORP·Filed 2022·Granted May 7, 2024·0 cites·3 claims
- 4263US6916011B2Ball valve and production method thereforKITZ CORP·Filed 2001·Granted Jul 12, 2005·10 cites·8 claims
- 4363US4337691AValve driving apparatusKITZ CORP·Filed 1980·Granted Jul 6, 1982·23 cites·3 claims
- 4459US11162914B2Pressure-resistance inspection apparatus for valves and its inspection method, and hydrogen gas detection unitKITZ CORP·Filed 2017·Granted Nov 2, 2021·0 cites·12 claims
- 4559US7368019B2Method for preventing elution of lead and/or nickel from copper alloy piping material such as valve or pipe joint and copper alloy piping material, and fluid for use in cleaning piping materialKITZ CORP·Filed 2003·Granted May 6, 2008·5 cites·9 claims
- 4659USD537919SBall valveKITZ CORP·Filed 2006·Granted Mar 6, 2007·11 cites·1 claims
- 4759USD498820SValve bodyKITZ CORP·Filed 2003·Granted Nov 23, 2004·14 cites·1 claims
- 4859US6224765B1Filter elementKITZ CORP·Filed 1997·Granted May 1, 2001·30 cites·11 claims
- 4959US4557286ABall valve with emergency sealing deviceKITZ CORP·Filed 1983·Granted Dec 10, 1985·26 cites·9 claims
- 5058US10006106B2Brass alloy and processed part and wetted partKITZ CORP·Filed 2013·Granted Jun 26, 2018·0 cites·9 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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