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Yoshinori ANDO
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Chiyoda-ku, Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Threaded joint for steel pipes
Patent number
11,415,246
Issue date
Aug 16, 2022
Nippon Steel Corporation
Yoshinori Ando
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
THREADED JOINT FOR STEEL PIPES
Publication number
20200332929
Publication date
Oct 22, 2020
Yoshinori ANDO
E21 - EARTH DRILLING MINING