Tank Tankuro  "Tank Tankuro" is considered one of the first robot and science fiction manga, inspiring characters like Osamu Tezuka's "Astro Boy" and Fujiko Fujio's "Doraemon." Sakamoto published Tank Tankuro's stories as a "yonkoma" for the "Chugai Shougyou Shimbun" (current "Nihon Keizai Shimbun"). He felt he needed a bigger space for his stories and turned to Kodansha, presenting a draft to the editor of "Yonen Club" magazine. The draft was accepted, and Sakamoto published "Tank Tankuro" stories in the magazine for four years. In 2010, a collection of "Tank Tankuro" stories was published in English by Presspop. It was reissued in 2017 by Fantagraphics.