[1][user-generated source] On 29 January 1943, Chiba was born in Shenyang, Manchukuo (now part Liaoning, China).
At the end of the Sino-Japanese War, Chiba's family lived in the attic of a work-acquaintance of his father until they could find a way to get back to Japan.
Chiba made his professional debut in 1967 with his manga Sabu to Chibi while working as an assistant to his older brother, Tetsuya.
In 1977, he won the 22nd Shogakukan Manga Award for shōnen for his work on Captain and Play Ball.
[3] On 13 September 1984, Chiba committed suicide due to issues related to bipolar disorder.