I am currently in Japan on a 90-day tourist/business visa (granted to
US citizens) while working at the Japan branch of my company. I left
Japan for a one-week vacation in April and came back for another 90
days. Now my work may keep me in Japan a little longer than the
originally planned second 90-day period. I could do another trip to
Korea, etc. but I am just wondering if anyone has experince with just
going down to the immigration office and getting the standard 90-day
tourist/business visa extended for another month or two, i.e. without
leaving the country.

thanks

Marc