Assignee
YAMADA CORP
JP18 patents
Top patents by PatentIndex Score
USD861043SSep 24, 2019
Diaphragm pump
YAMADA CORP22 citations92
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Diaphragm pump
YAMADA CORP9 citations85
US7497670B2Mar 3, 2009
Dual diaphragm transfer pump
YAMADA CORP10 citations84
USD781924SMar 21, 2017
Diaphragm pump
YAMADA CORP12 citations83
USD781922SMar 21, 2017
Diaphragm pump
YAMADA CORP9 citations82
USD781923SMar 21, 2017
Diaphragm pump
YAMADA CORP12 citations82
US5635625AJun 3, 1997
Oil changer
YAMADA CORP23 citations80
US6102274AAug 15, 2000
Method for manufacturing golf club heads
YAMADA CORP8 citations74
USD1055109SDec 24, 2024
Diaphragm pump
YAMADA CORP3 citations73
US6644940B2Nov 11, 2003
Restarting device for a fluid operated double diaphragm piston pump
YAMADA CORP8 citations72
US11448204B2Sep 20, 2022
Diaphragm pump with valve switching device
YAMADA CORP3 citations71
US5956946ASep 28, 1999
Vehicle exhaust-gas purifier
YAMADA CORP18 citations70
US5188518AFeb 23, 1993
Pumping device driven by a fluid driven reciprocating actuator
YAMADA CORP7 citations65
US6742997B2Jun 1, 2004
Diaphragm-type pumping apparatus
YAMADA CORP4 citations62
US6422430B1Jul 23, 2002
Pressure pump for high viscosity fluid
YAMADA CORP10 citations59
US5150643ASep 29, 1992
Reciprocating actuator
YAMADA CORP5 citations54
US11608821B2Mar 21, 2023
Ball non-return valve and diaphragm pump
YAMADA CORP0 citations50
US6129521AOct 10, 2000
Safety valve apparatus for air pressure operable diaphragm pump
YAMADA CORP0 citations20