The CJK Dictionary Institute (CJKI) was founded in 1993. Its principal activity is the compilation of large-scale dictionary databases of proper nouns and technical terms for CJK (Chinese, Japanese, Korean) and Arabic, currently with over 50 million entries. CJKI has become the world’s prime source for CJK lexical resources for the IT industry and software developers, providing high-quality comprehensive dictionary data, educational tools, and consulting services. Based in Saitama, Japan, CJKI is headed by Jack Halpern, editor in chief of The Kodansha Kanji Learner’s Dictionary and several other dictionaries that have become standard works for learning Japanese.
Our Business Model
Jack Halpern (春遍雀來), CEO of The CJK Dictionary Institute, is a lexicographer by profession, specializing in Japanese and Chinese. His work as an editor in chief of learner’s dictionaries resulted in various renowned standard reference works.
Jack has been a resident of Japan for over 40 years, but was born in Germany and has lived in France, Brazil, Japan, and the United States. He is an avid polyglot who has studied 18 languages (speaks 10 fluently).