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Miyagi prefecture (Tohoku area)June 2012
Saitama prefecture (Kantou area)June 2010
Miyazaki prefecture (Kyushu)June 2009 - February 2010
Nagasaki prefecture (Kyushu)June 2008
Tottori prefecture (Chuugoku area)June 2007
Kagoshima prefecture (Kyushu)June 2006
Fukui prefecture (Hokuriku area)June 2006
Tottori prefecture (Chuugoku area)June 2005
Kumamoto prefecture (Kyushu)June 2005
Okinawa prefecture (including Okinawa island)June 2003 - October 2003
Miyazaki prefecture (Kyushu)June 2003 - December 2003
Kumamoto prefecture (Kyushu)June 2002
Hiroshima prefecture (Chuugoku area)June 2002
Hokkaido (northernmost of the four main islands of Japan)July 2019
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