Sasazawa Saho (笹沢左保; November 15, 1930 – October 21, 2002) was a Japanese author, known as the creator of the Kogarashi Monjirō novels, which became a hit televised drama series. He was a self-declared member of the shinhonkaku-ha or "new orthodox" school of detective fiction writing. Aside from mysteries, he also wrote thrillers, essays and history books, with some 380 books to his credit.
Source: “Saho Sasazawa”, English Wikipedia (CC BY-SA 4.0), excerpt