Tetsuo Okuni

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of fabricating a structural member by electro slag forming
- Patent number 4,326,580
- Issue date Apr 27, 1982
- Hitachi, Ltd.
- Takeshi Wada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of manufacturing stay ring for water turbine and pump turbine
- Patent number 4,228,336
- Issue date Oct 14, 1980
- Hitachi, Ltd.
- Tetsuo Okuni
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Nozzle structure of electroslag welding machines
- Patent number 4,208,564
- Issue date Jun 17, 1980
- Hitachi, Ltd.
- Takeshi Wada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR