Assignee
HAYAKAWA NAOYA
JP·2 granted patents·7 citations·filing 2008–2010
Top patents by PatentIndex Score
2 records- 0170US9321119B2Combination welding method using combination of gas metal arc welding and submerged-arc welding and combination arc welding machineHAYAKAWA NAOYA·Filed 2010·Granted Apr 26, 2016·3 cites·6 claims
- 0268US8124247B2High-strength welded steel pipe including weld metal having high cold-cracking resistance and method for manufacturing the sameHAYAKAWA NAOYA·Filed 2008·Granted Feb 28, 2012·4 cites·2 claims
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