Kitaca(キタカ,Kitaka?) is a rechargeable contactless smart card ticketing system for public transport in Sapporo, Japan. Hokkaidō Railway Company (JR Hokkaidō) introduced the system from October 25 2008. Its name means "the card of north (北,kita?)", while 北 is also the first character of Hokkaidō(北海道?). Like other electronic fare collection systems in Japan, the card uses RFID technology developed by Sony corporation known as FeliCa. The card has an official mascot of Ezo momonga (Pteromys volans orii), a kind of flying squirrel found in Hokkaidō. The mascot is designed by Sora, an illustrator who lives in Sapporo. 
The service with SAPICA, a smart card system introduced by Sapporo City Transportation Bureau from January 2009, was initially considered, but they decided to introduce the different systems because of the technical and financial difficulties. However, the two operators hope to start an integration service in future.