Yoshiei Niwa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for high frequency discharge shaping of a wor...
- Patent number 4,447,696
- Issue date May 8, 1984
- Mitsubishi Denki Kabushiki Kaisha
- Yoshiei Niwa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for high frequency discharge shaping of a workpiece by me...
- Patent number 4,211,908
- Issue date Jul 8, 1980
- Mitsubishi Denki Kabushiki Kaisha
- Yoshiei Niwa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR