半はん角かく

noun

half-width characters; single-byte characters

Refers to characters that occupy half the width of a full-width character, such as ASCII letters, digits, and katakana. Commonly used in computing and text formatting contexts. The term 'en quad' is a typographic equivalent but rarely used in everyday Japanese.

See also: 全角

• パスワードは半はん角かく英えい数すう字じで入にゅう力りょくしてください。

  Please enter your password using half-width alphanumeric characters.

• このフォームでは半はん角かくカタカナは使つかえません。

  Half-width katakana cannot be used in this form.