Inventor
NISHIYAMA SAIKI
JP3 patents
Patents
3 patentsUS8641463B2Feb 4, 2014
Contra-rotating propeller marine propulsion device
SHUTO HIDEKI4 citations66
US8585366B2Nov 19, 2013
Contra-rotating propeller marine propulsion device
SHUTO HIDEKI4 citations55
US8459950B2Jun 11, 2013
Contra-rotating propeller unit, method for assembly thereof, method for transportation thereof, and method for mounting thereof on mother ship
SHUTO HIDEKI3 citations55