Database overview: About the “Bibliographic Database of Research on Japanese Language and Japanese Language Education”

The “Bibliographic Database of Research on Japanese Language and Japanese Language Education” is a database of material related to Japanese language and Japanese language education. Cataloguing books and articles on these topics that have been published over the nearly 70 years from 1950 to the present, at this point, March 2022, the total number of catalogued items amounts to approximately 274,800 items. As a collection of research materials on specific fields that covers a long span of years, the database, in addition to having bibliographic information on the texts, is characterized by the annotation of information on the field of study which indicates the content of each text. Furthermore, links have been added for accessing the texts of those articles available on the Web through the repositories of universities and other academic institutions, numbering, as of March 2022, a total of about 33,000 links.

1.Types of data and numbers of items

The data catalogued is broadly divided into an Article Database and a Book Database, with the data from the Article Database being further divided into ① Articles from Journals and ② Articles from Collections of papers.

Article Database 226,800 items

Articles from Journals 196,000 items (articles published in academic journals, and university bulletins and serials)

Articles from Collections of papers 30,800 items (individual articles from collections of papers and from proceedings)

Book Database 48,000 items

Total 274,800 items

2.The Scope of the Collection

The data catalogued is collected from the Research Library of the National Institute for Japanese Language and Linguistics. Almost all of the journals and books catalogued reside in the repository of the Research Library of the National Institute for Japanese Language and Linguistics (NINJAL), but with regard to those items for which there are no holdings in the Research Library repository, a minus sign (”-”) is entered in the corresponding cell of the “Research Library request number” (「研究図書室請求記号」) column on the “Details screen”. The Research Library intakes yearly 807 journals and bulletins, and 1,560 books, with current holdings as of November 2021 amounting to 5,927 titles for bulletins and journals, and 158,740 books.
Furthermore, the database has begun to enter articles that have been published for online journals. Data catalogued from online journals is indicated by “OJ” entered in the corresponding cell of the “Research Library request number” (「研究図書室請求記号」)column.

3.About the formation of the database and the data collection

The catalogue reflects the data in the following three journals; the "Japanese Language Studies Annual Survey and Bibliography" 『国語年鑑』(1954-2008), the"Japanese Language Education Annual Survey" 『日本語教育年鑑』(2000-2008), and the"Teaching Japanese as a Second Language: An Index to Journal Articles" 『日本語教育学会誌・機関誌掲載論文等文献一覧』(1980-1998) which were of late published by NINJAL.
Items from the"Japanese Language Studies Annual Survey and Bibliography" are generally works of"Journal,""Collections of papers" (except 1954-1956), and"Book," while items from the two journals on Japanese language education are generally works of"Journal" and"Book".
After the integration of the data from above-mentioned three journals in 2011, we subsequently add newly published items on"Journal,""Collections of papers," and"Book". Please note that while we have both "Keywords" and "Chapter title" fields after the data integration, there are cases where those fields are blank in the former data.

4.Methods for search

There are two search methods available: “Basic search” (「簡易検索」) and “Advanced search” (「詳細検索」). In the Basic search screen, string searches can be carried out over the categories of “Article author” (「論文著者名」), “Article title” (「論文名」), “Book editor/author” (「図書編著者名」), “Journal/book title” (「誌名・書名」), “Keyword/Chapter title” (「キーワード・章タイトル」). For details on the organization of entries in bibliographic records, please refer to “Entries in bibliographic records” (「データ項目」).
In the Advanced search screen, searches can be carried out over each of the following categories: “Article author” (「論文著者名」), “Article title” (「論文名」), “Book editor/author” (「図書編著者名」), “Journal/book title” (「誌名・書名」), “Publisher” (「発行」), “Publication year” (「発行年」),“Keyword/Chapter title” (「キーワード・章タイトル」), “Article ID” (「文献ID」), “Field” (「分野」). For details on searching in an individual category, use the respective button for that category.

5.Displaying search results

The search results display screen offers both a “List screen” (「一覧表示画面」) and a “Details screen” (「詳細表示画面」). By clicking the heading for each column in the “List screen” the data can be sorted by ascending or descending order. For entries added within the last year, the year and month of update appear in the “update” (「更新」) column. In addition, by clicking the “No.” section for a given entry, the view switches to a “Details screen” where all the data for that entry is displayed. Printing for “Details screen” is enabled.

6.Entries in bibliographic records

The full inventory of categories for the database is listed below. Note that in the List screen, those categories with an asterisk are not displayed.

  • 1. DB
  • 2. Article ID*
  • 3. Research Library request number*
  • 4. Article author
  • 5. Alternative form for article author*
  • 6. Article title
  • 7. Alternative form for article title*
  • 8. Book editor/author
  • 9. Alternative form for editor/author*
  • 10. Journal/book title
  • 11. Alternative form for Journal/Book title*
  • 12. Volume number
  • 13. Page numbers
  • 14. Total number of pages*
  • 15. Publisher
  • 16. Publication year
  • 17. Publication country*
  • 18. Keywords
  • 19. Chapter title/Table of contents
  • 20. Fields
  • 21. Article author in Latin script (automatically generated)*
  • 22. Book editor/author in Latin script (automatically generated)*
  • 23. Update
  • 24. (Link)

7.About fields

In the data there is included field information about the content of the article or book. Please note that the style of entry may vary depending on when the entry was made. Currently entries for fields are up to 3 in principle, but prior to 2012 only 1 central field was entered. The categories for fields are listed below:

1.General research on Japanese language

Characteristics of Japanese language, Overview of Japanese language, History of research on Japanese language, etc.

2.History of the Japanese language

Genealogy of Japanese language, Diachronic research on Japanese language, Overview of modern Japanese, etc.


Phonology, phonetics, accent, etc. Studies on the phonology of the various regional dialect of Japan are categorized under “Dialects.”

4.Characters and Orthography

Chinese characters, Kanadukai, Usage of characters, Theory of orthography, etc.

5.Lexicon and terminology

Lexicography, Word structure, Synonyms, Loan words, etc.


Grammatical theory, Syntax, Modality, etc.

7.Genre and style

Genre studies, Rhetoric, Stylometry, etc.


General theory of dialects, description of regional dialects, etc.

9.Japanese information processing

Corpora, Databases, Machine translation, etc. Topics in communication through the internet, digital media, etc. are categorized under “Communication.”


Language contact, Language behavior, Sociolinguistics, etc.

11.Mass communication

The language of television and newspapers, etc.

12.Japanese language policy and language policy

Language policy, Script reform, Chinese characters designated for common use, etc.

13.Japanese language education for native speakers

Education in Language Arts classes, Child language acquisition, etc.

14.Japanese language education for non-native speakers

Pedagogy of Japanese language education, Materials, Praxis, Issues involving students and teachers, etc.


General theories of language including Japanese, Psycholinguistics, Contrastive linguistics, etc.


Indexes, Resources for Japanese language research, etc.


Review articles on Japanese language research, etc.


Encyclopedias, Dictionaries. Only “Book” is included in this field.

8.Links to the texts of articles

In cases where articles are made publicly available online by the repositories of universities and academic institutions, the database provides a link to the text of the article. Please access these texts through the “Text Display” (「本文表示」) button on the display page. The links go through a handle page. Be aware that the specifications of the handle page depend on the institution in question.

9.About the journals collected in the catalogue

For information about the inventory of journals collected in the catalogue, see the “List of collected journals” (「採録誌名一覧」). This list sets out the journals and bulletins that have been published from 1985, and indicates the year of publication of the most recently acquired item. In addition, for a given item, if there is at least 1 article with a link to the article text, a circle (“○”) will appear in the “PDF” column for that item.

10.Downloading data

It is possible to download data for items selected from the List screen for a search result. The limit for a single download is data for 100 items. Please check off the selection buttons for the desired items and click “Download displayed records” (「表示データを書き出す」). Download is enabled for any of the following formats: BibTex, excel, csv (text).

11.Conditions of use

The conditions of use for the “Bibliographic Database of Research on Japanese Language and Japanese Language Education” (「文献データベース」, hereafter “Bibliographic Database”) are as follows:

  • 1. The copyright for the Bibliographic Database is reserved by the National Institute for Japanese Language and Linguistics.
  • 2. Parties desiring to use the Bibliographic Database with a motive of monetary profit must enter into agreement with the National Institute for Japanese Language and Linguistics.