Inventor
YAMAMOTO MASAKAZU
JP83 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMOTO MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EBARA CORP
26 patentsUS5888053AMar 30, 1999
Pump having first and second outer casing members
EBARA CORP144 citations97
US5692886ADec 2, 1997
Canned motor pump having concentric bearings
EBARA CORP55 citations96
US6350105B1Feb 26, 2002
Frequency and current control for fluid machinery
EBARA CORP63 citations95
US5563490AOct 8, 1996
Pump system with liquid cooling operation
EBARA CORP73 citations95
US5494418AFeb 27, 1996
Pump casing made of sheet metal
EBARA CORP48 citations95
US5674056AOct 7, 1997
Motor pump assembly
EBARA CORP42 citations93
US5648694AJul 15, 1997
Motor stator assembly and full-circumferential flow pump employing such motor stator assembly
EBARA CORP40 citations93
US5567133AOct 22, 1996
Canned motor and pump employing such canned motor
EBARA CORP51 citations93
US5385444AJan 31, 1995
Pump casing made of sheet metal
EBARA CORP27 citations93
US6520745B1Feb 18, 2003
Performance regulating device for fluid machinery
EBARA CORP33 citations92
US6435836B1Aug 20, 2002
Fluid machinery
EBARA CORP28 citations92
US5857841AJan 12, 1999
Full-circumferential flow pump
EBARA CORP37 citations92
US5797731AAug 25, 1998
Group of full-circumferential-flow pumps and method of manufacturing the same
EBARA CORP23 citations92
US5494403AFeb 27, 1996
Full-circumferential flow pump
EBARA CORP30 citations92
US5478215ADec 26, 1995
Full-circumferential flow pump
EBARA CORP31 citations92
US5401146AMar 28, 1995
Pump casing made of sheet metal
EBARA CORP32 citations91
US5388971AFeb 14, 1995
Full-circumferential flow pump
EBARA CORP17 citations82
US5704768AJan 6, 1998
Motor pump family of centrifugal pumps
EBARA CORP8 citations74
US5676528AOct 14, 1997
Motor pump family with single stage and multiple stage impellers
EBARA CORP7 citations74
US5601419AFeb 11, 1997
Nozzle structure for a full-circumferential flow pump
EBARA CORP12 citations74
US5564914AOct 15, 1996
Fluid machine with induction motor
EBARA CORP11 citations74
US5385454AJan 31, 1995
Bearing device for use in a canned motor
EBARA CORP16 citations74
US5964582AOct 12, 1999
Fragment prevention and containment for a bearing device for use in a pump
EBARA CORP11 citations73
US5704761AJan 6, 1998
Full-circumferential flow pump
EBARA CORP10 citations73
US5616013AApr 1, 1997
Full-circumferential flow pump
EBARA CORP12 citations73
US5348452ASep 20, 1994
Pump mounting structure of canned submersible motor for deep well pump
EBARA CORP14 citations70
HITACHI LTD
14 patentsUS5110664AMay 5, 1992
Thick film and thin film composite substrate and electronic circuit apparatus using it
HITACHI LTD156 citations99
US5729550AMar 17, 1998
Data transmitter-receiver
HITACHI LTD54 citations96
US5184027AFeb 2, 1993
Clock signal supply system
HITACHI LTD75 citations96
US4954877ASep 4, 1990
Chip carrier
HITACHI LTD65 citations96
US4558395ADec 10, 1985
Cooling module for integrated circuit chips
HITACHI LTD97 citations96
US4626889ADec 2, 1986
Stacked differentially driven transmission line on integrated circuit
HITACHI LTD81 citations95
US6330703B1Dec 11, 2001
Method and circuit for determining the power consumption requirements for a semiconductor logic circuit and designing the circuit accordingly
HITACHI LTD37 citations92
US5923539AJul 13, 1999
Multilayer circuit substrate with circuit repairing function, and electronic circuit device
HITACHI LTD43 citations92
US5844762ADec 1, 1998
Electronic circuit device having a function of inhibiting resonance in power wiring
HITACHI LTD30 citations92
US4930002AMay 29, 1990
Multi-chip module structure
HITACHI LTD23 citations92
US5214318AMay 25, 1993
Semiconductor integrated circuit device having a signal transmission line pair interconnected by propagation delay time control resistance
HITACHI LTD26 citations90
US5457406AOct 10, 1995
Bidirectional signal transmission circuit and terminator
HITACHI LTD37 citations87
US5822329AOct 13, 1998
Data-transmitter-receiver
HITACHI LTD7 citations73
US5661416AAug 26, 1997
Interface circuit and interface-network system using the same
HITACHI LTD16 citations72
SHOWA DENKO KK
2 patentsDENSO CORP
2 patentsESPEC CORP
1 patentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD
1 patentYAMAMOTO MASAKAZU
1 patentTOSHIBA KK
1 patentJAPAN POLYOLEFINS CO LTD
1 patentKOBE STEEL LTD
1 patentShowing the top 50 of 83 patents by PatentIndex Score.