Oji has been granted a patent for a heat-sensitive recording material with an undercoat layer containing hollow plastic particles and a binder, and a heat-sensitive recording layer with a leuco dye and developer. The material has an elastic modulus of 200 N/mm2 or less, providing improved performance. GlobalData’s report on Oji 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 Oji, Incontinence monitoring sensors was a key innovation area identified from patents. Oji's grant share as of May 2024 was 22%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11993095B2) discloses a heat-sensitive recording material designed with specific layers to enhance its performance. The material comprises an undercoat layer and a heat-sensitive recording layer on a support. The undercoat layer includes hollow plastic particles and a binder, with the heat-sensitive recording layer containing a leuco dye and a developer. Notably, the material's elastic modulus is limited to 200 N/mm2 or less, as determined by a nanoindentation method. The undercoat layer is formulated with hollow plastic particles of a specific size range and proportion, along with a binder featuring a glass transition temperature of -20° C or lower.
Furthermore, the patent specifies that the binder in the undercoat layer should contain latex, with a minimum proportion of 25 mass % based on the total solids content of the undercoat layer. This emphasis on the composition of the undercoat layer aims to optimize the heat-sensitive recording material's properties and functionality. By incorporating these specific components and adhering to the outlined criteria, the patented material is poised to offer improved performance in heat-sensitive recording applications.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
