Shuji Hamada

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for sandblasting workpiece
- Patent number 4,798,027
- Issue date Jan 17, 1989
- Niigata Engineering Co., Ltd.
- Shuji Hamada
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus for processing workpiece with sandblasting
- Patent number 4,753,051
- Issue date Jun 28, 1988
- Niigata Engineering Co., Ltd.
- Teruo Tano
- B24 - GRINDING POLISHING
Information Patent Grant
Method and apparatus for sandblasting a workpiece
- Patent number 4,741,130
- Issue date May 3, 1988
- Niigata Engineering Co., Ltd.
- Teruo Tano
- B24 - GRINDING POLISHING
Information Patent Grant
Method for feeding a work
- Patent number 4,708,582
- Issue date Nov 24, 1987
- Niigata Engineering Co., Ltd.
- Shuji Hamada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR