Tanaka Hisashige

Tanaka Hisashige (1799–1881) was a Japanese engineer and inventor known for mechanical puppets, precision clocks, and founding the enterprise that became Toshiba.

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Karakuri ningyō: Traditional Japanese mechanical automata, often designed as moving dolls or figures. These mechanical figures were the craft tradition in which Hisashige first became famous.
Myriad-year clock: A Japanese mechanical clock completed by Tanaka Hisashige in 1851, displaying multiple forms of time and astronomical information. This elaborate clock combined timekeeping systems and celestial displays in one machine.
Kurume Domain: A feudal domain in Kyushu governed by the Arima clan during the Edo period. His family’s status and early life were rooted in this domain.
Telegraphy in Japan: The development and use of electrical telegraph communication in Japan beginning in the nineteenth century. His engineering work included equipment for Japan’s early telegraph system.
Tanaka Seisuke: The son and successor of Tanaka Hisashige, who continued the family’s engineering business. Seisuke carried the enterprise forward after his father’s death.
Japanese clock: A clock made for Japanese timekeeping, which divided daylight and nighttime into changing hours. His precision clocks adapted imported mechanisms to Japan’s variable-hour system.
Tea-serving robot: A Japanese mechanical doll that carries a cup of tea to a guest and returns when the cup is removed. His tea-serving doll turned a compact spring mechanism into a sequence of social gestures.
Karakuri performance: The public presentation of mechanical puppets and automata as entertainment in Japan. Performances gave his early mechanical inventions audiences and commercial purpose.
Telegraph: A communication system that transmits coded messages over distance using electrical signals or other means. Telegraph technology became a major application of his engineering beyond clockmaking.
Tokugawa Yoshinobu: The fifteenth and final shogun of the Tokugawa shogunate, ruling from 1866 to 1867. Hisashige’s late-period work took place as Yoshinobu’s shogunate faced political collapse.