Etymology and distribution of 楯澤.

Tatezawa 【楯澤】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Ooita-ken Nakatsu-shi , Fukuoka-ken , Miyazaki-ken . Ooita-ken Nakatsu-shi Eigenzu originated. Place name with a record since the North / South morning era. The place name was also written as "Yongkang."