What is U Sa Ha Na?

Sanrio中的一個人物。
Sanrio包括：hello kitty ,mymelody,cinamoroll.little twin star等等...

You mean Usahana?
It's a Japanese cartoon doll, something like a rabbit...
See some pictures of it in Yahoo! Search :
http://hk.search.yahoo.com/search/images?p=Usahana&fr=FP-tab-img-t&ei=UTF-8&meta=rst%3Dhk

A cartoon of sanrio and it is a rabbit with different colours ears

宇佐花？？？
うさ　=　宇佐(u sa)
はな =　花(ha na)