Refers to a legally registered trademark or a distinctive characteristic of a person or thing. The legal term 商標 (しょうひょう) is more precise for registered trademarks.
See also: 商標 (しょうひょう)
This logo is our company's trademark.
His trademark is always wearing a red hat.
The red hat is his trademark.
She has made her long hair her trademark.
The company registered the new logo as its trademark.