Source: Noto CJK

U+309C Katakana-Hiragana Semi-Voiced Sound Mark

U+309C was added in Unicode version 1.1 in 1993. It belongs to the block U+3040 to U+309F Hiragana in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Modifier Symbol and is commonly used, that is, in no specific script. It is also used in the scripts Hiragana, Katakana.

The glyph is a compatibility composition of the glyphs Space, Combining Katakana-Hiragana Semi-Voiced Sound Mark. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. This katakana joins with other adjacent katakana to form a word. U+309C prohibits line breaks before its position. There might be some exceptions, though. The glyph can be confused with one other glyph.

The Wikipedia has the following information about this codepoint:

The dakuten (Japanese: 濁点, Japanese pronunciation: [dakɯ̥teꜜɴ] or [dakɯ̥teɴ], lit. "voicing mark"), colloquially ten-ten (点々, "dots"), is a diacritic most often used in the Japanese kana syllabaries to indicate that the consonant of a syllable should be pronounced voiced, for instance, on sounds that have undergone rendaku (sequential voicing).
The handakuten (半濁点, Japanese pronunciation: [handaꜜkɯ̥teɴ], lit. "half voicing mark"), colloquially maru (丸, "circle"), is a diacritic used with the kana for syllables starting with h to indicate that they should instead be pronounced with [p].

Representations

System	Representation
Nº	12444
UTF-8	E3 82 9C
UTF-16	30 9C
UTF-32	00 00 30 9C
URL-Quoted	%E3%82%9C
HTML hex reference	゜
Wrong windows-1252 Mojibake	â—Œã‚œ
Encoding: JIS0208 (hex bytes)	A1 AC
Adobe Glyph List	semivoicedmarkkana
digraph	05

Related Characters

Confusables

Halfwidth Katakana Semi-Voiced Sound Mark

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
Unicode 1 Name (na1)	—
Block (blk)	Hiragana
General Category (gc)	Modifier Symbol
Script (sc)	Common
Bidirectional Category (bc)	Other Neutral
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	compatibility
Decomposition Mapping (dm)	Space Combining Katakana-Hiragana Semi-Voiced Sound Mark
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Katakana-Hiragana Semi-Voiced Sound Mark
Lowercase Mapping (lc)	Katakana-Hiragana Semi-Voiced Sound Mark
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Katakana-Hiragana Semi-Voiced Sound Mark
Uppercase Mapping (uc)	Katakana-Hiragana Semi-Voiced Sound Mark
Simple Titlecase Mapping (stc)	Katakana-Hiragana Semi-Voiced Sound Mark
Titlecase Mapping (tc)	Katakana-Hiragana Semi-Voiced Sound Mark
Case Folding (cf)	Katakana-Hiragana Semi-Voiced Sound Mark
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✔
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✔
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✔
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Katakana-Hiragana Semi-Voiced Sound Mark
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✔
ID Start (IDS)	✔
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Space Combining Katakana-Hiragana Semi-Voiced Sound Mark
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Space Combining Katakana-Hiragana Semi-Voiced Sound Mark
NFKD Quick Check (NFKD_QC)	No
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✔
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Katakana
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✔
Expands On NFKD (XO_NFKD)	✔
Bidi Paired Bracket (bpb)	Katakana-Hiragana Semi-Voiced Sound Mark
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Nonstarter
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Katakana-Hiragana Semi-Voiced Sound Mark
Script Extension (scx)	Hiragana Katakana
Vertical Orientation (vo)	Tu