Onuma Yuuichi
He is also a depeloper of a famous computer shareware "O's Editor 2" which is very useful text editor and used by many japanese people, including many proffessional writers.
(director)
2003. Jisatsu manual 2, chuukyuu-hen (DVD)
2008. Bodyjack ... assistant
(writer)
2008. Makiguri no ana
(producer)
2005. Saigo no bansan
(other)
2003. Jisatsu manual ... assitant director