Yositeru Chiba

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Valve having facing layers of co-free Ni-base Alloy
- Patent number 5,633,094
- Issue date May 27, 1997
- Hitachi, Ltd.
- Kikuo Takeshima
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of cooling weld in steel piping and apparatus therefor
- Patent number 4,223,197
- Issue date Sep 16, 1980
- Hitachi, Ltd.
- Katsuyuki Imai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR