Quick links to additional subject specific encyclopedias:
国史大辞典 15 vol.
EA Ref: DS833 .K64 1979; available electronically through JapanKnowledge
Nihon shi daijiten = Cyclopedia of Japanese history
EA Ref: DS833 .N532 1992
Iwanami Nihon shi jiten
EA Ref: DS833 .I936 1999
Kadokawa shinpan Nihonshi jiten
EAC: DS833 .K34 1996
Nihon shisōshi jiten = Dictionary of Japanese intellectual history
EA Ref: DS821 .N67926 2001
Covers Buddhism, Confucianism, Shintō, Kokugaku, historical thought, warrior thought, Western learning, scientific thought, modern thought, the arts, linguistics, and folk religion. Includes ample cross-references and citations for every entry. Index at front is by type of thought, sources and people. Index at rear is alphabetical.