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Figure from the patent titled "Manufacture Method of Ultra-Thin Type Combo Antenna" (KR1599707). (Source: KIPRIS) |
Apple Korea has filed an invalidation petition with the Korean Intellectual Property Trial and Appeal Board (KIPTAB) against a patent held by South Korean antenna manufacturer Mobinus. The petition, submitted in December 2024, targets claim 1 of Korean Patent No. 1599707, titled "Manufacture Method of Ultra-Thin Type Combo Antenna."
Mobinus, founded in 2002 and headquartered in Ansan, Gyeonggi Province, specializes in the development and production of RF components and mobile communication antennas.
The disputed patent describes a method for manufacturing ultra-thin combo antennas by integrating a flat wire coil with a flexible printed circuit board (FPCB). According to the specification, the process includes attaching an adhesive component to the FPCB, mounting a patterned flat wire coil on top, and using heat and pressure to press the coil flat onto the substrate. The final step involves cutting or punching the assembly into the desired size.
This design replaces traditional round wire coils with flat-section coils to improve signal transmission and wireless charging efficiency, while minimizing the antenna's thickness to allow better spatial integration. The resulting combo antenna can support both power transmission and data communication functions.
As of June 2025, Mobinus holds two active patents in Korea. In addition to the patent challenged by Apple Korea, Mobinus also owns Korean Patent No. 2279623, titled"“Manufacturing Method of Flexible Circuit Board Using Master Mold with Fine Pattern." That second patent is not currently subject to any invalidation proceedings.
By PatenTrip
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