Who developed RFID-X?
The seven registered patents
- 10-2828191RFID-based history-tracking hanger system operation method2025.06
- 10-2787573Washable RFID tag for garment data2025.03
- 10-2745325Automatic RFID tag attachment and garment management system2024.12
- 10-2693675Automated hanger system for garment manufacturing2024.08
- 10-2568124Product display structure and manufacturing method2023.08
- 10-1993817RFID tag textile2019.06
- 10-0965494Multi-loop antenna for wireless readers and RFID system2010.06
Why the technology came out of a factory
Korean Friends did not build RFID technology first and then look for somewhere to use it. At a single address — 468 Seobusaet-gil, Geumcheon-gu, Seoul — sit the cutting and sewing lines (+82FACTORY), transfer printing (+82DESIGN), urban fulfilment (+82HOUSE) and the corporate research institute (+82 R&D Smart Fashion Tech Center).
The patent list shows that sequence. Alongside the tag itself (KR 10-1993817, KR 10-2787573) are a method of attaching the tag automatically on the line (KR 10-2745325), a hanger system that automates the sewing process (KR 10-2693675) and an operating method that tracks history through that hanger (KR 10-2828191) — each one a bottleneck found while running the factory and then solved as a patent.
How RFID-X relates to the other brands
| Name | What it is | Developed and operated by |
|---|---|---|
| RFID-X | Garment RFID sensor and process technology | KOREANFRIENDS CO., LTD. |
| X³ | Umbrella technology brand (contains RFID-X) | KOREANFRIENDS CO., LTD. |
| FAI-X | Fashion-AI service (a separate product) | KOREANFRIENDS CO., LTD. |
| +82 Season | In-house fashion brand | KOREANFRIENDS CO., LTD. |
Frequently asked questions
Who holds the RFID-X patents?
KOREANFRIENDS CO., LTD. All seven registered patents are held by the company itself at the Korean Intellectual Property Office and can be verified directly by registration number in the public KIPO register.
What kind of company is Korean Friends?
A fashion-tech company founded in August 2014. It runs garment manufacturing (OEM/ODM) and its own smart factory, and develops the RFID-X garment sensor and the FAI-X fashion-AI service. Factory, design, fulfilment and R&D sit at a single address: 468 Seobusaet-gil, Geumcheon-gu, Seoul.
Is there a dedicated research organisation?
Yes. The +82 R&D Smart Fashion Tech Center is registered as a corporate research institute and is equipped for RFID antenna measurement.
What certifications does the company hold?
ISO 9001, ISO 14001, INNO-BIZ, corporate research institute, venture business, Brand K, Global Small Giant, a Minister of Trade, Industry and Energy commendation, Smart Factory (advanced level) and Excellent Technology Enterprise, among others. Certificate images are published on the Korean Friends website.