IsiJapane sisetyenziswa kakhulu eJapan kunye phakathi kweJapan.

Nangona iJapane ayigcini isigama esisemthethweni ngokomthetho, zonke izivakalisi ezisemthethweni zibhalwa ngesiJapan, kuthiwa ukusebenzisa iJapan kwimimiselo nemimiselo, ukufunda kunikwa kwimfundo, njl.