| Name | LEFT PARENTHESIS OPENING PARENTHESIS |
| Unicode Version | 1.1 |
| Block（ブロック） | Basic Latin（基本ラテン文字（ASCII互換）） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ( ( |
| UTF-8 Encoding | ( 28 |
| UTF-16 Encoding | ( 0028 |
| UTF-32 Encoding | ( 00000028 |