Daio Paper has been granted a patent for an RFID tag designed for liquid containers. The tag features an IC chip for identification, a loop conductor, and an antenna unit with distinct straight and meandering conductors, enhancing its functionality in liquid environments. GlobalData’s report on Daio Paper gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Daio Paper, Incontinence monitoring sensors was a key innovation area identified from patents. Daio Paper's grant share as of June 2024 was 75%. Grant share is based on the ratio of number of grants to total number of patents.
Rfid tag for liquid container identification
The granted patent US12039394B2 describes a novel radio frequency identification (RFID) tag designed for attachment to the surface of containers holding liquids. The RFID tag features an integrated circuit (IC) chip for storing identification information, a loop conductor, and an antenna unit comprising two distinct elements: a first element with straight line-shaped conductors and a second element with meandering-shaped conductors. These elements are configured to extend in opposite directions from the loop conductor, with differing electrical lengths, one being an integer multiple of approximately ¼ of the wavelength of the operational frequency, which falls within the ultra high frequency (UHF) band (860 MHz to 960 MHz). The design allows the RFID tag to maintain wireless communication functionality in various environments, including air and water.
Further claims expand on the antenna unit's design, introducing additional components such as branch and hook elements, which enhance the tag's functionality. The branch element extends parallel to one of the straight line-shaped conductors, while the hook element connects to the tip of a straight conductor, both having unique electrical lengths. The patent also specifies that the RFID tag can be used with various liquids, including water, oil, and alcohol, or mixtures thereof. Additionally, the patent encompasses a polyethylene terephthalate (PET) bottle that incorporates the RFID tag, as well as an antenna designed for use with the tag, highlighting the versatility and practical applications of this technology in tracking and identifying liquid containers.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
