You can check out eHangar
. They have info on most aviation artists and the list is continually growing.
Here's the biography as written on the eHangar website:
"Shigeo Koike, a resident of Tokyo, is the premier box art artist for models produced by Japan’s Hasegawa Seisakusho Co. Ltd. He has completed over 200 pieces of box art for Hasegawa in his twenty years of painting for the company. His work also appears on the beautiful calendars of Fuji Heavy Industries. A collection of Koike’s aviation paintings has been published by Sony Magazines, Inc., under the title Flyover: The Works of Shigeo Koike."