1930c – Steel Humanoid Robot – Yasutaro Mitsui (Japanese)

It appears as if Yasutaro Mitsui's Steel Humanoid robot is the first known Japanese robot in humanoid form. With the post author not being able to read nor write in Japanese, it makes it difficult to research. The image also appears in Haruki Inoue's 1993 book Nihon Robotto Soseiki 1920-1938. I suspect the electrical devices and valves …