From Bulbapedia, the community-driven Pokémon encyclopedia.
Toshihiro Ono (小野 敏洋 Ono Toshihiro), born February 27, 1965, is the creator of the manga The Electric Tale of Pikachu. He also wrote and illustrated the Pokémon Tales book Pikachu's Unparalleled Adventure. Aside from his work with Pokémon, he also illustrated the first two volumes of the Crest of the Stars manga trilogy and is one of the two writers of the Banner of the Stars manga series. He also writes pornographic manga (colloquially referred to as hentai) under a pseudonym.
The Electric Tale of Pikachu interview with Animerica
Around 1999, Ono had an interview with Animerica, an American magazine dedicated to anime. They asked him mostly about The Electric Tale of Pikachu and its upcoming final volume. Some of the questions were focusing more on his career as a writer than his personal life. Eventually the question of his illustrations came along. Ono replied with, "I have had to change most of my artwork for it to get into America."
Pokémon manga by Toshihiro Ono