I just received an email from Christopher Blasdel, the artistic director of the International House of Japan:
"This is Christopher Blasdel at the International House of Japan. I read your posting and chainletter that informs on the search for Craig. Thank you for your efforts at this. I have been in constant contact with the Fukuoka Consulate and can reassure you that they and the folk at the embassy are very concerned about this and doing what they can, including, not very successfully, trying to get the Japanese police to extend their search. The problem therefore is not with the US Embassy side."
He has, however, requested that his cell number be removed from the public posting (which I have done already below) and that if anyone needs to contact him, it is easiest done through email, which he constantly checks (firstname.lastname@example.org) or through the number at the I-House (81-3-3470-3211), for the other number needs to be free for emergency calls.