Its Japanese name is Kabushikigaisha Haru Kenkyujo. Some times, although not on MSX games, they called themselves Halken.
It is named after the infamous HAL 9000 computer in 2001: A Space Odyssey.
An interesting artikel about HAL Laboratory can be read on {link url="http://en.wikipedia.org/wiki/HAL_Laboratory,_Inc."}Wikipedia{/link}.