Tadashi Nakajima

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composition for preventing formation of scales in welding
- Patent number 5,120,917
- Issue date Jun 9, 1992
- Ishihara Chemical Co., Ltd.
- Tadao Komatsu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Blowhole.multidot.pit preventing agent and arc-welding method using...
- Patent number 4,904,842
- Issue date Feb 27, 1990
- Kawasaki Steel Corporation
- Koichi Yasuda
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR