Education
From 1978–1985 he attended the Tokyo National University of Fine Arts and Music where he majored in violoncello.
溝口みぞぐち肇はじめ
From 1978–1985 he attended the Tokyo National University of Fine Arts and Music where he majored in violoncello.
Mizoguchi started playing piano in 1963, at the age of 3, and the cello in 1971. While at school, he started playing the cello with Japanese popular-singers and working as a studio musician for radio, television, films, and albums. In 1982, at the age of 22, he had a serious traffic accident which led to his composing.
In 1986, he released his first album, Half Inch Dessert, being listed as composer, arranger, and performer.
From that time on, he has released more than 20 albums including motion picture soundtracks, has performed in many concerts on his own or with ensembles, has been a producer for various musicians, and so on. His compositions include the soundtrack to the animated feature film Jin-Roh: The Wolf Brigade.
In 2006, he composed the music to Tokimeki Memorial Only Love (along with Teruyuki Nobuchika) and the Fuji television noitamina series Jyu Oh Science He composed and plays the opening and ending theme for television Asahi"s series See the World by Train, which has run since 1987.
His song "Bruce", from 1986"s Oasis Behind the Clear Water, appears in various scenes of the 1987 OVA To-y.
They divorced in 2007.