Inventor
OTANI KENJI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “OTANI KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS6102618AAug 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
US5228802AJul 20, 1993
Underground drainage facility and operation method therefor
HITACHI LTD38 citations87
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
US5287875AFeb 22, 1994
Draining pump system and drainage preference operating method therefor
HITACHI LTD12 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
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
ROHM CO LTD
10 patentsUS7045915B2May 16, 2006
Power supply unit having multiple power supply outputs
ROHM CO LTD11 citations84
US6924533B2Aug 2, 2005
Semiconductor integrated circuit device incorporating overvoltage protection circuit
ROHM CO LTD7 citations74
US5300873AApr 5, 1994
Motor control apparatus
ROHM CO LTD10 citations73
US5686362ANov 11, 1997
Method of manufacturing a semiconductor integrated circuit device
ROHM CO LTD5 citations70
US7279942B2Oct 9, 2007
Differential current output unit
ROHM CO LTD2 citations62
US6977535B2Dec 20, 2005
Differential current output unit
ROHM CO LTD4 citations62
US5917237AJun 29, 1999
Semiconductor integrated circuit device and lead frame therefor
ROHM CO LTD3 citations61
US5287047AFeb 15, 1994
Motor drive circuit and motor drive system using the same
ROHM CO LTD2 citations59
US7196888B2Mar 27, 2007
Method of fabricating semiconductor integrated circuit device having protection circuit
ROHM CO LTD0 citations52
US6703955B2Mar 9, 2004
Variable-output-characteristic semiconductor integrated circuit device
ROHM CO LTD1 citations52