Yahoo Japan, the most powerful search engine in Japan will most probably include the Google Search Engine power in it’s content and it is a huge probability to increase it’s popularity much more than Microsoft – AFP said in a report Tuesday.

The agreement between Yahoo! Japan and the Google Search engine will be announced later this Tuesday. The Japanese search engine is 40% owned by Softbank Japan and 60% by the Yahoo! Company.

“We’ve been considering changing our search engine, and Google is one option,” Yahoo! Japan spokesman Toru Nagano told AFP, adding that “nothing official” had been decided.

This is without a doubt one of the most important deals that will affect almost the entire Japanese search market.

The Yahoo! Japan spokesman said “We’ve been using (US) Yahoo!’s search engine, called Yahoo! Search Technology, since 2004, But before that we used Google’s search engine. We changed our search engine a couple of times in the past.”