Minakuchi Engineering

Minakuchi Engineering Co., Ltd. (水口エンジニアリング株式会社) was a Japanese video game developer based in Kōka, Shiga. Founded in May 1984, it had worked on approximately 40 titles for arcade, computer and home consoles, a large number of which went uncredited. It is best known for developing Mega Man games for Capcom, namely all of the Game Boy Mega Man games (except II) and Mega Man X3. Its exact fate is unknown, but its website was taken down in 2002.

Source : IGDB