Kiyoji Otsuji
| 1923 | Born in Oshima, Jyoutou-ku, Tokyo (now Oshima, Koto-ku） |
| 1942 | Entered Tokyo College of Photography (former Konishi College of Photography, now Tokyo Polytechnic University) |
| 1944 | Graduated from Tokyo College of Photography |
| 1945 | Found a job at Takabayashi Studio |
| 1946 | Invited by Gijyu Saitoh, joined Katei Bunka Company |
| 1947 | Set up his own photographic studio |
| 1953 | Joined "Experimental Workshop" and "Graphic Group" |
| 2001 | Passed away in his house when he was 77 years old |