These names were taken from a patriotic poem ( waka or tanka ) , written by the Japanese classical poet , Motoori Norinaga : `` Shikishima no Yamato-gokoro wo hito towaba , asahi ni niou yamazakura bana '' ( æ å ã å å ' å ã ' ä å ã ã æ æ -- ã `` å ã å æ è ) . These names were taken from a patriotic poem ( waka or tanka ) , Shikishima no Yamato-gokoro wo hito towaba , asahi ni niou yamazakura bana by the Japanese classical scholar , Motoori Norinaga .