He is best known for his long-running comedy series KochiKame: Tokyo Beat Cops, which was continuously published in Weekly Shōnen Jump for 40 years from 1976 to 2016.
Akimoto's other works include the action comedy Mr. Clice, which has been published irregularly since 1985, and the Western series Black Tiger (2017–2023).
Before becoming a professional manga artist, Akimoto worked at the animation studio Tatsunoko Production on series such as Science Ninja Team Gatchaman.
[7][8] In November 2010, Akimoto was one of several manga artists that held a press conference in opposition to Tokyo Metropolitan Ordinance Regarding the Healthy Development of Youths's Bill 156.
[9] In February 2014, he drew the one-shot "Vocalo" which is set 50 years after the rise of Vocaloid technology and ran in the shōjo manga magazine Margaret.
[7] The Western Black Tiger was serialized in Grand Jump from the second issue of 2017, which was released in December 2016, until February 2023.