Hiroshima
Japan
2
2015-11-12
2
2015-12-01
These are the the leading inventors for applications assigned to Hirobo Co., Ltd:
Hirobo Co., Ltd based in Hiroshima, JP has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Coaxial counter-rotating unmanned helicopter
#2 | 2010-08-05 ✅ Patent 8,186,615 granted on 2012-05-29Rotor head of remotely-controlled helicopter and remotely-controlled helicopter
452574 ⎘