Ask HN: Japanese search engine query data or query feed?

I am interested in analysing Japanese query data for a project. Search datasets are typically hard to come by, but there are a few American datasets (Excite, AlltheWeb, the notorious AOL search logs). Anyone know of a similar Japanese language dataset? Even a feed of recent queries -- something like http://www.searchhippo.com/queryview.php -- would be useful if it is updated frequently. Thanks