Katsumasa Shinmei

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Water turbine
- Patent number 6,334,757
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Ryuichiro Iwano
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method of starting a variable-speed pump turbine or a variable spee...
- Patent number 4,708,594
- Issue date Nov 24, 1987
- Hitachi, Ltd.
- Katsumasa Shinmei
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...