.: The Japan Science and Technology Agency has release Journal@rchive, an archive of articles from Japanese journals, some going back to the 19th century. From the About page:
Journal@rchive is an archive site of J-STAGE operated by the Japan Science and Technology Agency (JST). On Journal@rchive, academic journals scanned through the Electronic Archive Initiative are released from their first issues, including those issued in the 19th century. The Initiative commenced by JST in FY2005 aiming at two goals: (1) to preserve of academic heritages of Japan, and (2) to further promote worldwide distribution of Japanese research results.