*This content was translated by AI.View Original

Kahi, a former member of the group After School, lost a trademark lawsuit related to her stage name.
According to legal sources on the 19th, Kahi ultimately lost the trademark dispute with the cosmetics brand 'KAHI'.
In 2021, Kahi filed an application for the trademark 'KAHI', her stage name, in connection with dietary supplements, and completed the trademark registration in 2023.
However, the side of the cosmetics brand 'Kahi' argued that the trademark was similar to their brand and could cause confusion among consumers, claiming the invalidity of the trademark registration. In response, Kahi countered that she had been active in the entertainment industry under the stage name 'Kahi' even before the cosmetics brand emerged.
Nevertheless, the Patent Court ruled in favor of the cosmetics company, taking into account the relevance between cosmetics and dietary supplements, as well as the recognition of the existing brand.
Kahi's side appealed the ruling but withdrew the appeal, resulting in the loss being finalized on May 20. Consequently, the 'KAHI' trademark registered by Kahi for dietary supplements was invalidated.
However, this ruling deals with the validity of a trademark registration for specific goods and does not prohibit Kahi from using her stage name in the entertainment industry.
Meanwhile, Kahi debuted as a member of After School in 2009 and has since been active as a solo singer and broadcaster.
<© STARNEWS. All rights reserved. No reproduction or redistribution allowed.>
*This content was translated by AI.View Original

![[Photo] NCT's Ji-sung: "Is he the last person to throw a ceremonial first pitch at Jamsil Stadium?"](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=300,h=208,fit=cover,g=face/21/2026/10/2026102020251268017_1.jpg)
![Hwang Bo-ra, Egg Retrieval Fails Again: "I Will Keep Challenging Until the End" [Variety]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=300,h=208,fit=cover,g=face/21/2026/10/2026102019424745221_1.jpg)





![Kim Ho-yeong targeted again? Ok Ju-hyun: "No misunderstanding, no target" — Speaks out on the "Sick X" remark [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026102017213628453_1.jpg)
![Uo Seo-yoon, amid "plastic surgery controversy," coolly confesses about dental procedure: "Most satisfied, feels great" [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026102019514153712_1.jpg)
![Park Wi, aware of 'disability mockery → adopted daughter controversy'... quietly deleting videos [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026102011062928443_1.jpg)
![‘Lee Byung-hun’s wife’ Lee Min-jung reveals her diet secrets: “I eat five meals a day, and if I’m hungry, I drink three glasses of water” [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026102019225223468_1.jpg)
!["Please shut down the 'Gaseoyeon' channel," Kim Soo-hyun requests of YouTube [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=640,h=427,fit=cover,g=face/21/2026/10/2026102007390974437_1.jpg)