CJK Compatibility is a
Unicode block
A Unicode block is one of several contiguous ranges of numeric character codes ( code points) of the Unicode character set that are defined by the Unicode Consortium for administrative and documentation purposes. Typically, proposals such as the ...
containing square symbols (both CJK and Latin alphanumeric) encoded for compatibility with East Asian character sets. In Unicode 1.0, it was divided into two blocks, named CJK Squared Words (U+3300–U+337F) and CJK Squared Abbreviations (U+3380–U+33FF).
Characters U+337B through U+337E are the
Japanese era symbols
Heisei
The is the period of Japanese history corresponding to the reign of Emperor Emeritus Akihito from 8 January 1989 until his abdication on 30 April 2019. The Heisei era started on 8 January 1989, the day after the death of the Emperor Hirohito, ...
(㍻),
Shōwa (㍼),
Taishō (㍽) and
Meiji (㍾) (also available in certain legacy sets, such as the "
NEC special characters" extension for
JIS X 0208
JIS X 0208 is a 2-byte character set specified as a Japanese Industrial Standards, Japanese Industrial Standard, containing 6879 graphic characters suitable for writing text, place names, personal names, and so forth in the Japanese language. Th ...
, as included in
Microsoft's version and later
JIS X 0213
JIS X 0213 is a Japanese Industrial Standard defining coded character sets for encoding the characters used in Japan. This standard extends JIS X 0208. The first version was published in 2000 and revised in 2004 (JIS2004) and 2012. As well as a ...
).
The
Reiwa
is the current Japanese era name, era of Japan's official calendar. It began on 1 May 2019, the day on which Emperor Akihito's elder son, Naruhito, Enthronement of the Japanese emperor, ascended the throne as the 126th Emperor of Japan. The ...
era symbol (㋿) is in
Enclosed CJK Letters and Months
Enclosed CJK Letters and Months is a Unicode block containing circled and parenthesized Katakana, Hangul, and CJK ideographs. Also included in the block are miscellaneous glyphs that would more likely fit in CJK Compatibility or Enclosed Alp ...
(the CJK Compatibility block having been fully allocated by the time of its commencement).
Block
History
The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Compatibility block:
See also
*
CJK Unified Ideographs
The Chinese, Japanese and Korean (CJK) scripts share a common background, collectively known as CJK characters. In the process called Han unification, the common (shared) characters were identified and named CJK Unified Ideographs. As of Unicode ...
*
Katakana (Unicode block)
Katakana is a Unicode block containing katakana characters for the Japanese and Ainu languages.
Block
History
The following Unicode-related documents record the purpose and process of defining specific characters in the Katakana block:
See ...
*
Letterlike Symbols
References
{{CJK ideographs in Unicode
Unicode blocks