Here is some extra info:
http://homepage3.nifty.com/foruser/a...fcgallery.html
The cassette credits just "SNK" for composition/lyrics, but actually JASRAC has Eikichi Kawasaki.
(But I wonder, did he really compose them? Kawasaki is (was?) SNK's top boss, weird...).
About 10TH-114,
here is some info (the site also has a bunch of obscure albums). Apparently a cassette published by "テイチクレコード", can't find much else.