1940-70 – Mini Musician Robots – Jiro Aizawa (Japanese)

(Source: Mechanix illustrated September 1951) Robots in Ragtime The Japanese have come up with something new in toys. It’s a mechanical orchestra and its tinny music has captured the hearts of the youngsters. Jiro Aizawa, an ex-Kamikaze plane designer, is the creator. Loath to discard his mechanical training after the war, he turned to experimentation …

1967 – Mr. Ryo the Drawing Robot – Jiro Aizawa (Japanese)

Mr. Ryo [Ryo-Kun] on display after his restoration. Ryo-Kun during  restoration at the Kanagawa Institute of Technology in Japan in 2008. The robot's left arm follows the X-Y directions from a master arm seen here at the base being guided by a person. Close-up of the drawing hand. Close-up of the master arm. I do …