The Syokaku was built in 1991 with a full load displacement of 725 tons.
The vessel is 56.7 meters long and sails at 12.5 nautical miles an hour.
This gift is part of Japan’s support to help increase the capacity of Vietnamese coast guards, officials said at the ceremony Thursday.
It has been upgraded and will be fit for sea patrols and for security and rescue operations.
Vietnamese coast guards take photo with a patrol ship gifted from Japan on February 5, 2015.