Kenji Otani

Person

Tsuchiura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Drainage water pumping station and method for operating the same
- Patent number 6,132,136
- Issue date Oct 17, 2000
- Hitachi, Ltd.
- Kunio Takada
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Large-depth underground drainage facility and method of running same
- Patent number 6,102,618
- Issue date Aug 15, 2000
- Hitachi, Ltd.
- Kunio Takada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Large-depth underground drainage facility and method of running same
- Patent number 5,909,982
- Issue date Jun 8, 1999
- Hitachi, Ltd.
- Kunio Takada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Bearing unit, drainage pump and hydraulic turbine each incorporatin...
- Patent number 5,839,880
- Issue date Nov 24, 1998
- Hitachi, Ltd.
- Ryoji Okada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Drainage water pumping station and method for operating the same
- Patent number 5,733,064
- Issue date Mar 31, 1998
- Hitachi, Ltd.
- Kunio Takada
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Large-depth underground drainage facility and method of running same
- Patent number 5,634,740
- Issue date Jun 3, 1997
- Hitachi, Ltd.
- Kunio Takada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Drainage water pumping station and method for operating the same
- Patent number 5,603,587
- Issue date Feb 18, 1997
- Hitachi, Ltd.
- Kunio Takada
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Drainage water pumping station and method for operating the same
- Patent number 5,498,105
- Issue date Mar 12, 1996
- Hitachi, Ltd.
- Kunio Takada
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Large-depth underground drainage facility and method of running same
- Patent number 5,487,621
- Issue date Jan 30, 1996
- Hitachi, Ltd.
- Kunio Takada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Drainage pump and a hydraulic turbine incorporating a bearing membe...
- Patent number 5,458,460
- Issue date Oct 17, 1995
- Hitachi, Ltd.
- Ryoji Okada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Drainage water pumping station and method for operating the same
- Patent number 5,360,289
- Issue date Nov 1, 1994
- Hitachi, Ltd.
- Kunio Takada
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Bearing unit, drainage pump and hydraulic turbine each incorporatin...
- Patent number 5,346,316
- Issue date Sep 13, 1994
- Hitachi, Ltd.
- Ryoji Okada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Draining pump system and drainage preference operating method therefor
- Patent number 5,287,875
- Issue date Feb 22, 1994
- Hitachi, Ltd.
- Kenji Otani
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Underground drainage facility and operation method therefor
- Patent number 5,228,802
- Issue date Jul 20, 1993
- Hitachi, Ltd.
- Norimitu Kuwabara
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Drainage distribution amount determining method and drainage system
- Patent number 5,160,216
- Issue date Nov 3, 1992
- Hitachi, Ltd.
- Kunio Takada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Kenji Otani

Person

Patents Grantslast 30 patents

Drainage water pumping station and method for operating the same

Large-depth underground drainage facility and method of running same

Large-depth underground drainage facility and method of running same

Bearing unit, drainage pump and hydraulic turbine each incorporatin...

Drainage water pumping station and method for operating the same

Large-depth underground drainage facility and method of running same

Drainage water pumping station and method for operating the same

Drainage water pumping station and method for operating the same

Large-depth underground drainage facility and method of running same

Drainage pump and a hydraulic turbine incorporating a bearing membe...

Drainage water pumping station and method for operating the same

Bearing unit, drainage pump and hydraulic turbine each incorporatin...

Draining pump system and drainage preference operating method therefor

Underground drainage facility and operation method therefor

Drainage distribution amount determining method and drainage system