Turn a payee or payer name into the form Japanese banks accept in transfers (Zengin): half-width katakana, digits, A-Z and a few symbols; small kana made large (ッ->ﾂ, ャ->ﾔ), ー->-, ・->., legal-entity words replaced by the bank abbreviation with the position rule (株式会社 at the start 'ｶ)', in the middle '(ｶ)', at the end '(ｶ'). Accepts kana (hiragana or katakana, full or half width), Latin letters and digits, and legal-entity words in kanji or spelled out (カブシキガイシャ). It does NOT read other kanji: pass the reading. Returns ok, zengin (half-width), display (full-width), length (voiced kana count 2), entities, changes, errors, warnings (code, message in English and Japanese). 振込名義を全銀の形に整える。

Validate a half-width Zengin name from a CSV or bank file: only allowed characters, no small kana, no full-width characters, spacing, length. Returns ok, length, errors, warnings, abbreviations found.

Decide whether a payer name on a bank statement (half-width, abbreviated) and a customer name (kana reading) are the same, ignoring entity abbreviations, spaces, punctuation, small/large kana and width. Returns match, name_match, key_a, key_b, entity_a, entity_b, entity_type_differs (e.g. ﾕ) vs 株式会社), errors.