Mokita - 3:21 am on Sep 21, 2011 (gmt 0)
Staffa - I'm no longer sure about it being Japanese IP range. The 150 range is an "early assign" block of IPs with assignments to all the then major districts (RIPE, ARIN etc).
It is definitely in the Japanese range:
inetnum: 184.108.40.206 - 220.127.116.11
descr: Japan Network Information Center
status: ALLOCATED PORTABLE
changed: email@example.com 20070824
What makes you think just because it is TrendMicro, that they are not operating out of Japan?