The requested vessel with name KOJIN MARU NO3 and MMSI:0 and IMO:7029196 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
KOJIN MARU NO.11 N/A 431000798 JP MYJ Dec 13, 2017 03:21 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.