Kosuke Kindaichi (金田一 耕助 Kindaichi Kōsuke) is a famous fictional Japanese detective created by Seishi Yokomizo, a renowned mystery novelist. His first case, The Honjin Murder Case, a story of locked room murder in an old family, which many people regard as one of the best Japanese detective stories, was published in 1946.
A profile of Kosuke appears at the end of the manga Case Closed Volume 6.
Hajime Kindaichi (金田一 一 Kindaichi Hajime), the main character of Kindaichi Case Files, is depicted as the grandson of Kosuke Kindaichi without permission of Yokomizo's family.
Read more about Kosuke Kindaichi: Cases