Currently in Tokyo & using 2 laptops
One Mac & one PC both are using an English browser.
When I use Firefox & search an English term it gives me the results based on Google.com in English
When I use IE it gives me results as if I'm searching from Google.co.jp

At my office I was examining a term in English for a fellow Japanese consultant & gave him this link
http://www.tony-hill.net/bigdaddywatch/

Forgetting that Big Daddy may produce results from the English datacenter since the term was in English. He actually said he was suprised & I assumed that he was saying it was all in English.

But it was all Japanese search results.

Firefox English - Gives English Results
Firefox Japanese - Gives Japanese Results
IE both language - Japanese Results.