size | Hokkaido | Aomori prefecture Akita prefecture Iwate prefecture | Miyagi prefecture Yamagata prefecture Fukushima prefecture | Ibaraki prefecture Tochigi prefecture Gunma prefecture Saitama prefecture Chiba prefecture Kanagawa prefecture Tokyo Metropolitan area Yamanashi prefecture | Niigata prefecture Nagano prefecture | Shizuoka prefecture Speedster three-ply prefecture Gifu prefecture | Toyama Ishikawa prefecture Fukui prefecture | Osaka (metropolitan area) Kyoto (metropolitan area) Shiga prefecture Nara prefecture Wakayama prefecture Hyogo prefecture | Okayama prefecture Hiroshima prefecture Yamaguchi prefecture Tottori prefecture Shimane | Kagawa prefecture Tokushima prefecture Ehime prefecture Kochi prefecture | Fukuoka prefecture Saga prefecture Nagasaki prefecture Kumamoto prefecture Ooita prefecture Miyazaki prefecture Kagoshima prefecture | Okinawa prefecture |