Hand shaking is not common among japanese interviews.
There are times when the interviewer is already in the room, if everybody is already present everybody usually stands up and start handing out BUSINESS CARD .. be sure you know how to receive and give it properly.
Everybody sits down and your are usually ask to give a self introduction about yourself. If you can speak the simple japanese greetings such as good morning /pm or hajimemashite then say it.
You will be interviewed by a Japanese? Be sure to speak slowly and surely and avoid using difficult words.
THe word "GANBARIMASU" goes a long way. so if there are things that you might not know but are willing to learn tell then and say GANBARIMASU...
oh and never be late for the interview
good luck .