Notice about maintenance on the Toyo Bunko OPAC

Maintenance will be performed on the Toyo Bunko OPAC (https://opac.tbopac.com/) from 13:00 to 17:00 of June 8 (Monday), 2026.
During the maintenance, the Toyo Bunko OPAC will be unavailable.
We apologize for any inconvenience this may cause.

Our another online catalogue “Cross-search of the Toyo Bunko collections” (https://www.toyo-bunko.org/is/isqueryinput_e.php) will continue to be available as usual.
We also encourage you to use CiNii Books, the National Institute of Informatics (https://ci.nii.ac.jp/books/?l=en), which is linked to the Toyo Bunko OPAC.