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Hikaru Yamamoto
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Ryugasaki-shi, JP
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last 30 patents
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Patent Application
Welding method, welding device, welded joint, and welded structure
Publication number
20040074885
Publication date
Apr 22, 2004
Toru Takatani
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Application
Method of friction welding, and frictionally welded structure
Publication number
20030111514
Publication date
Jun 19, 2003
Naoki Miyanagi
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Patent Application
Consumable electrode arc welding method and welder
Publication number
20030062355
Publication date
Apr 3, 2003
Yuichi Ikegami
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