Nippon Paper Industries patented a thermosensitive recording medium with superior oil resistance. The medium includes a specific combination of electron donating leuco dye and color developing agents, enhancing performance. GlobalData’s report on Nippon Paper Industries 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 Nippon Paper Industries, Sustainable packaging paper coating was a key innovation area identified from patents. Nippon Paper Industries's grant share as of February 2024 was 41%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11912052B2) discloses a thermosensitive recording medium with a thermosensitive recording layer containing specific electron accepting color developing agents. These agents include N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by a defined general formula. The content of these compounds in the recording layer is crucial, with N-[2-(3-phenylureido)phenyl] benzenesulfonamide ranging from 5.0 to 50.0 weight % and the urea-based compound from 1.0 to 50.0 weight %.
Moreover, the patent outlines additional features such as the inclusion of a protective layer on the thermosensitive recording layer and the potential presence of urea-urethane-based compounds as electron accepting color developing agents. The combined amount of the specified color developing agents must be at least 90 weight % of the total agents in the recording layer. These detailed specifications aim to enhance the performance and efficiency of the thermosensitive recording medium, ensuring optimal color development and stability during use.
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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.
