Oops, the above wikipedia page includes less common Japanese keyboard layout. The following page includes common keyboard layout for Japanese users.
http://www-306.ibm.com/software/globalization/topics/keyboards/KBD194.jsp -- [Edgy Beta] "Japan" keyboard layout is actually "U.S. English" https://launchpad.net/bugs/63915 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs