Assignee
CKD CORP
JP289 patents
Top patents by PatentIndex Score
US5160179ANov 3, 1992
Pipe coupler with split ring chuck
CKD CORP171 citations99
US6508268B1Jan 21, 2003
Vacuum pressure control apparatus
CKD CORP79 citations98
US5819782AOct 13, 1998
Gas supply unit
CKD CORP122 citations98
US7716993B2May 18, 2010
Gas flow rate verification unit
CKD CORP474 citations97
US7353841B2Apr 8, 2008
Relative pressure control system and relative flow control system
CKD CORP101 citations96
US6041814AMar 28, 2000
Vacuum pressure control system
CKD CORP54 citations96
US6026882AFeb 22, 2000
Tube connecting apparatus
CKD CORP44 citations96
US6075605AJun 13, 2000
Shape measuring device
CKD CORP92 citations95
US5394755AMar 7, 1995
Flow quantity test system for mass flow controller
CKD CORP62 citations95
US5797604AAug 25, 1998
Metal gasket
CKD CORP51 citations94
US4793241ADec 27, 1988
Piston position detector for fluid pressure cylinder
CKD CORP94 citations94
US7726333B2Jun 1, 2010
Fluid controller
CKD CORP50 citations93
US7537194B2May 26, 2009
Flow control valve
CKD CORP38 citations93
US5848188ADec 8, 1998
Shape measure device
CKD CORP70 citations93
USD886741SJun 9, 2020
Holder for solenoid valves
CKD CORP33 citations92
US8033579B2Oct 11, 2011
Fluid device connecting structure
CKD CORP32 citations92
US7581764B2Sep 1, 2009
Connection seal structure for fluidic device
CKD CORP22 citations92
US6289737B1Sep 18, 2001
Vacuum pressure control system
CKD CORP40 citations92
US8794261B2Aug 5, 2014
Fluid control system and fluid control method
CKD CORP19 citations91
USD541905SMay 1, 2007
Valve
CKD CORP15 citations91
USD463011SSep 17, 2002
Valve
CKD CORP17 citations91
US6152175ANov 28, 2000
Process gas supply unit
CKD CORP63 citations91
US6109303AAug 29, 2000
Process gas supply unit
CKD CORP31 citations91
US5984318ANov 16, 1999
Gasket holder
CKD CORP52 citations91
US4773270ASep 27, 1988
Pressure gage
CKD CORP37 citations91
USD742494SNov 3, 2015
Vaporization device for a vaporization unit of a liquid control apparatus
CKD CORP24 citations90
US6056291AMay 2, 2000
Metal gasket
CKD CORP24 citations90
USD318713SJul 30, 1991
Combined pressure regulator and filter
CKD CORP36 citations90
USD317494SJun 11, 1991
Pressure regulator
CKD CORP22 citations90
USD317315SJun 4, 1991
Lubricator
CKD CORP24 citations90
US6886401B2May 3, 2005
Thermal flow sensor having sensor and bypass passages
CKD CORP38 citations89
US5913401AJun 22, 1999
Magnetic screw device, method of manufacturing magnetic screw device, and conveying device with magnetic screw
CKD CORP28 citations89
US5751083AMay 12, 1998
Magnetic screw conveying apparatus
CKD CORP27 citations89
US5634390AJun 3, 1997
Rotary actuator
CKD CORP40 citations89
USD301917SJun 27, 1989
Pressure governor
CKD CORP24 citations89
USD301914SJun 27, 1989
Pressure governor with filter
CKD CORP24 citations89
US4805516AFeb 21, 1989
Axial air motor
CKD CORP25 citations89
US7748684B2Jul 6, 2010
Flow control valve
CKD CORP21 citations88
US7628376B2Dec 8, 2009
Diaphragm valve
CKD CORP21 citations88
US6913031B2Jul 5, 2005
Pulse shot type flow controller and pulse shot type flow controlling method
CKD CORP43 citations88
US6209571B1Apr 3, 2001
Process gas supply unit
CKD CORP41 citations88
US4735288AApr 5, 1988
Detachably attaching mechanism for cup of lubricator or filter used with air-actuated device
CKD CORP30 citations88
US5915409AJun 29, 1999
Manifold
CKD CORP33 citations87
US4760862AAug 2, 1988
Air pressure regulator
CKD CORP28 citations87
US5611209AMar 18, 1997
Dehumidifier
CKD CORP28 citations86
US7017609B2Mar 28, 2006
Gas supply unit
CKD CORP24 citations85
US5669422ASep 23, 1997
Slow start valve
CKD CORP22 citations85
US11060637B2Jul 13, 2021
Coupling member, fluid-device connecting jig, and fluid-device connecting structure
CKD CORP9 citations84
US10006564B2Jun 26, 2018
Corrosion resistant coating for process gas control valve
CKD CORP7 citations84
USD780295SFeb 28, 2017
Electromagnetic valve
CKD CORP10 citations84
Showing the top 50 of 289 patents by PatentIndex Score.