Etymology and distribution of 実明.

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

Mie-ken , Gifu-ken , Aichi-ken .

① Mie-ken Inabe-shi Hector Toho Gen. A place name with a record in the notation of "cough" during the Warring States Period.

② variant of 積 . Kagoshima-ken Amami-shi In Nagase Daichi Okuma tells you that you renamed it from the last name of the family name of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. 積 Seki reference.