Riichiro Inagaki is a Japanese manga artist and writer. He is best known for his work on the popular manga series Dr. Stone, which he created with illustrator Boichi. Inagaki began his career as an assistant to manga artist Takeshi Obata, and has since gone on to create several successful manga series, including Eyeshield 21 and Cross Account. Inagaki is known for his detailed artwork and unique storytelling style, which often incorporates elements of science and technology. He is also a frequent collaborator with other manga artists, including Boichi and Yūsuke Murata. Inagaki's work has been praised for its originality and has been adapted into several anime series.