Aichi Prefectural Police arrested two men Tuesday for allegedly placing obscene images on an Internet home page.
The case is remarkable because the images were of such a size that they were capable of being accessed through the i-mode cellular phone service.
Investigators said it was the first time anyone in Japan has been arrested for placing obscene images on an i-mode-accessible Web site. i-mode phones can only view Internet sites with limited data.
The men were identified as Yoshimasa Tanabe, 36, of Atami, Shizuoka Prefecture, and Kazuo Togo, 31, of Kobayashi, Miyazaki Prefecture.