Inventor · disambiguated record

Youji Yamamoto

Also filed as: YAMAMOTO YOUJI

1 granted patent·13 citations·filing 1986–1986

35Inventor score

Technology areasC21D

Files withNIPPON STEEL CORP1

Top patents by PatentIndex Score

1 record

0166US4772771AMethod for the production of high strength electric seam welded oil-well pipeNIPPON STEEL CORP·Filed 1986·Granted Sep 20, 1988·13 cites·2 claims

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