Inventor
TAKADA KUNIO
JP26 patents
⚠️ This page may combine multiple inventors who share the name “TAKADA KUNIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS5752785AMay 19, 1998
Drainage pump station and drainage operation method for drainage pump station
HITACHI LTD57 citations96
US6102618AAug 15, 2000
Large-depth underground drainage facility and method of running same
HITACHI LTD38 citations92
US5909982AJun 8, 1999
Large-depth underground drainage facility and method of running same
HITACHI LTD35 citations92
US5487621AJan 30, 1996
Large-depth underground drainage facility and method of running same
HITACHI LTD39 citations92
US5458460AOct 17, 1995
Drainage pump and a hydraulic turbine incorporating a bearing member, and a method of manufacturing the bearing member
HITACHI LTD23 citations92
US5346316ASep 13, 1994
Bearing unit, drainage pump and hydraulic turbine each incorporating the bearing unit
HITACHI LTD29 citations91
US5812421ASep 22, 1998
System for cooperatively operating river management facilities
HITACHI LTD18 citations84
US5839880ANov 24, 1998
Bearing unit, drainage pump and hydraulic turbine each incorporating the bearing unit, and method of manufacturing the bearing unit
HITACHI LTD16 citations81
US5733064AMar 31, 1998
Drainage water pumping station and method for operating the same
HITACHI LTD5 citations74
US5498105AMar 12, 1996
Drainage water pumping station and method for operating the same
HITACHI LTD7 citations74
US5360289ANov 1, 1994
Drainage water pumping station and method for operating the same
HITACHI LTD10 citations74
US5160216ANov 3, 1992
Drainage distribution amount determining method and drainage system
HITACHI LTD18 citations74
US5634740AJun 3, 1997
Large-depth underground drainage facility and method of running same
HITACHI LTD5 citations73
US5297927AMar 29, 1994
Vertical shaft type pump
HITACHI LTD6 citations73
US5639165AJun 17, 1997
Method of operating pump and bearing device for pump
HITACHI LTD7 citations65
US6132136AOct 17, 2000
Drainage water pumping station and method for operating the same
HITACHI LTD0 citations52
US5603587AFeb 18, 1997
Drainage water pumping station and method for operating the same
HITACHI LTD0 citations52
CANON KK
8 patentsUS5525379AJun 11, 1996
Method for manufacturing an optical recording medium
CANON KK24 citations92
US5330693AJul 19, 1994
Process and apparatus for injection-molding product having minute surface pattern and central hole
CANON KK25 citations92
US4826271AMay 2, 1989
Rotational polygon mirror and method of manufacturing the same
CANON KK22 citations82
US6007878ADec 28, 1999
Process for producing an optical recording medium having a protective layer formed using a plasma processing device
CANON KK10 citations74
US5589244ADec 31, 1996
Magneto-optical disc
CANON KK4 citations63
US4892692AJan 9, 1990
Process for producing substrate for optical disk by annealing substrate with gradient double refraction distribution
CANON KK3 citations60
US7755267B2Jul 13, 2010
Electron emitting device having electroconductive thin film and high resistivity sheet
CANON KK1 citations52
US7482742B2Jan 27, 2009
Electron source substrate with high-impedance portion, and image-forming apparatus
CANON KK0 citations52