Yukihiro Kojima

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Nishikawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shaft structure in screw rotor of screw fluid assembly
- Patent number 6,186,756
- Issue date Feb 13, 2001
- Hokuetsu Industries Co., Ltd.
- Yukihiro Kojima
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Shaft structure in screw rotor of screw fluid assembly
- Patent number 6,139,298
- Issue date Oct 31, 2000
- Hokuetsu Industries Co., Ltd.
- Yukihiro Kojima
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...