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Fumio Ohtake
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Chiba, JP
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last 30 patents
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Patent Grant
Earthquake resistant multi-story building
Patent number
5,271,197
Issue date
Dec 21, 1993
Shimizu Construction Co., Ltd.
Toshio Uno
E04 - BUILDING
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Patent Grant
Method for producing I-beam having centrally corrugated web
Patent number
4,597,278
Issue date
Jul 1, 1986
Sumitomo Metal Industries, Ltd.
Masami Hamada
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...