Haruki Sakai

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Centrifugal compressor
- Patent number 5,178,516
- Issue date Jan 12, 1993
- Hitachi, Ltd.
- Koji Nakagawa
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Vane controller
- Patent number 5,096,374
- Issue date Mar 17, 1992
- Hitachi, Ltd.
- Haruki Sakai
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Diffuser for a centrifugal compressor
- Patent number 4,969,798
- Issue date Nov 13, 1990
- Hitachi, Ltd.
- Haruki Sakai
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Diffuser for centrifugal compressor
- Patent number 4,877,370
- Issue date Oct 31, 1989
- Hitachi, Ltd.
- Koji Nakagawa
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...