JIS X 0212
Japanese standard character set
JIS X 0212 is a Japanese Industrial Standard defining a coded character set for encoding supplementary characters for use in Japanese. This standard is intended to supplement JIS X 0208 (Code page 952). It is numbered 953 or 5049 as an IBM code page (see below).
It is one of the source standards for Unicode's CJK Unified Ideographs.
History
In 1990 the Japanese Standards Association (JSA) released a supplementary character set standard: JIS X 0212-1990 Code of the Supplementary Japanese Graphic Character Set for Information Interchange (情報交換用漢字符号-補助漢字, Jōhō Kōkan'yō Kanji Fugō - Hojo Kanji). This standard was intended to build upon the range of characters available in the main JIS X 0208 character set, and to address shortcomings in the coverage of that set.
Features
The standard specified 6,067 characters, comprising:
21 Greek characters with diacritics
26 Eastern European characters with diacritics (mostly Cyrillic)
198 alphabetic characters with diacritics
5,801 kanji
Encodings
The following encodings or encapsulations are used to enable JIS X 0212 characters to be used in files, etc.
in EUC-JP characters are represented by three bytes, the first being 0x8F, the following two in the range 0xA1 – 0xFE.
in certain implementations of the ISO 2022-based JIS encoding—including ISO-2022-JP-EXT, ISO-2022-JP-1 and ISO-2022-JP-2—the sequence ESC $ ( D is used to indicate JIS X 0212 characters.
No encapsulation of JIS X 0212 characters in the popular Shift JIS encoding is possible, as Shift JIS does not have sufficient unallocated code space for the characters.
Implementations
JIS X 0212 is called Code page 953 by IBM, which includes vendor extensions.
The public source identifies “JIS X 0212” as japanese standard character set. This brief keeps that definition visible, then builds a research path around Japanese, standard and character.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 1, 2026. The linked authority identifier is Q841021. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1990 and 2022.
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This entry incorporates text from “JIS X 0212” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.