The requested vessel with name YOSHIMARU and MMSI:431004651 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
YOSHIMARU NO.8 N/A 431008801 Dec 01, 2017 19:06 UTC
YOSHIMARU NO81 N/A 431295000 Feb 15, 2018 01:56 UTC

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