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Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
heating apparatus, heat treatment apparatus, and heating method | 21 | 2011 |
induction heating and quenching device, induction heating and quenching method, inductio… 🛈 | 17 | 2009 |
rebar structure and reinforced concrete member | 14 | 2012 |
induction heating device, induction heating equipment, induction heating method, and hea… 🛈 | 14 | 2011 |
high-frequency hardening monitor device | 12 | 2007 |
heating coil and heat treatment apparatus | 11 | 2012 |
direct resistance heating method | 11 | 2012 |
heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece | 11 | 2012 |
management system for high frequency quenching | 11 | 2009 |
welding device for metal and welding method for metal | 11 | 2008 |