ゲームアーツ
Takeshi began working programming for ASCII at the age of 15. He wrote a book on how to program while working for ASCII. At the age of 19, he co-founded Game Arts with his brother Yoichi. He was in charge of the Development Department of Game Arts for over the next 16 years. During that time, he acted as producer and director of various Games Arts titles, including "Silpheed", "GunGriffon" and "Grandia".