godan verb (-tsu), intransitive verb
engrave an inscription; stamp with a name
Literal sense of carving or stamping a name, title, or mark onto an object. Often used for swords, plaques, or official seals.
刀に作者の名が銘打ってある。
The maker's name is engraved on the sword.
godan verb (-tsu), intransitive verb
call itself; style itself as; label itself
Figurative use: an organization, product, or person publicly claims a certain title, quality, or identity. Often followed by ～として or a quoted label.
その団体は「環境保護」を銘打って寄付を募っている。
The organization solicits donations under the banner of 'environmental protection'.
彼は自分を改革者と銘打っている。
He styles himself as a reformer.