hello,
i just wanted to post this link to one of the best library research catalogues for japan:

http://webcatplus.nii.ac.jp/

it includes all search functions you need and you can trace a book down to the adress of the library and the signature of the book itself. most books have a short description of the content or the index posted, next isbn numbers and other common bibliographical details. these you might also use to order books at amazon or similar shops.
the page is in japanese only and you need to be able to write in japanese.

hope this helps your research

karsten