The requested vessel with name TAIKASAN MARU and MMSI:0 and IMO:6809434 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
TAIKASAN MARU NO.2 8103901 431336000 JP TAD Apr 22, 2016 04:08 UTC

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