Masayuki Yamada

Person

Tsuchiura, JP

People

Patents Grantslast 30 patents

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 pump station and drainage operation method for drainage pu...
- Patent number 5,752,785
- Issue date May 19, 1998
- Hitachi, Ltd.
- Sadashi Tanaka
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Underground drainage facility, vertical-shaft multi-stage adjustabl...
- Patent number 5,733,065
- Issue date Mar 31, 1998
- Hitachi, Ltd.
- Masayuki Yamada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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
Underground drainage facility, vertical-shaft multi-stage adjustabl...
- Patent number 5,624,226
- Issue date Apr 29, 1997
- Hitachi, Ltd.
- Masayuki Yamada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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
Underground drainage facility, vertical-shaft multi-stage adjustabl...
- Patent number 5,360,290
- Issue date Nov 1, 1994
- Hitachi, Ltd.
- Masayuki Yamada
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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
Vertical shaft type pump
- Patent number 5,297,927
- Issue date Mar 29, 1994
- Hitachi, Ltd.
- Kooji Aizawa
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Movable blade pump
- Patent number 4,362,463
- Issue date Dec 7, 1982
- Hitachi, Ltd.
- Sumio Sudo
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Masayuki Yamada

Person

Patents Grantslast 30 patents

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 pump station and drainage operation method for drainage pu...

Underground drainage facility, vertical-shaft multi-stage adjustabl...

Large-depth underground drainage facility and method of running same

Underground drainage facility, vertical-shaft multi-stage adjustabl...

Large-depth underground drainage facility and method of running same

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

Underground drainage facility, vertical-shaft multi-stage adjustabl...

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

Vertical shaft type pump

Movable blade pump