Japan: First Name or Title?
From ExecutivePlanet.com
First Name or Title?
It is the general norm to add '-san' to the end of the last name for all people you meet. First names are rarely used except when people become very good friends. The only problem is it wouldn't be strange to have several Suzuki-san's in the same room. Then it's up to you to keep it straight by remembering who is who, but still not using their first names.

