1947 – Universal Robot No. 2 – Jiro Aizawa (Japanese)

前掲書2頁より 昭和22年(1947年)製作の 「ユニバーサルロボット第2号」 都立工蔓高校の創立四十年記念祭に学生たちと製作した「エ蔓一郎」君の次に製作された弟である Rough English translation… Cit from Page 2  1947 (1947) production  "Universal Robot No. 2"  Made with students in Senior high school was founded four decades Jubilee Metropolitan Industrial vine "Mr. Ichiro " is your brother, was made following. Opened back of robot. See the full Jiro Aizawa story here .

1970 – Mr. Kuro the Robot – Jiro Aizawa (Japanese)

An Expo'70 [Osaka, Japan) postcard showing Kuro-Kun. Two post-cards (one cut down) showing Kuro-Kun (Mr. Kuro).  The image is covered in a thin prismatic film so that when tilted, the robots internals can be seen. The images below show a very similar robot. Most likely the same robot, but the chest pattern and hands were possibly …

1973 – Mr. Tetsu the Green Stamping Robot – Jiro Aizawa (Japanese)

Mr. Testu [Tetsu-Kun], unconfirmed name, also called Mr. Stamp. I've dated him as 1973, but I've also seen a reference to 1971. Mr. Tetsu on display after being restored at the Kanagawa Institute of Technology in Japan, 2008. The author with Mr. Tetsu in November, 2010. See the full Jiro Aizawa story here .

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 …