Nitto Boseki‘s patent involves a surface-treated glass cloth for enhancing insulation reliability in prepregs and printed wiring boards. The glass composition and surface treatment layer specifics aim to improve performance. GlobalData’s report on Nitto Boseki 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 Nitto Boseki, Interlaced yarn fabrics was a key innovation area identified from patents. Nitto Boseki's grant share as of May 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Surface-treated glass cloth for prepreg with enhanced insulation reliability
A recently granted patent (Publication Number: US11958952B2) discloses a surface-treated glass cloth with a unique composition and surface treatment layer. The glass cloth is characterized by a composition containing specific mass percentages of SiO2, B2O3, Al2O3, MgO, CaO, SrO, TiO2, F2, and Cl2. The surface treatment layer on the glass cloth includes a silane coupling agent with a methacrylic group and does not contain any surfactant. The glass cloth has a surface coverage ranging from 75.0% to 100.0% and a thickness between 8 to 95 µm, making it suitable for various applications.
Furthermore, the patent claims detail additional features of the surface-treated glass cloth, such as the adherence of silica fine particles to the glass filament surface, specific surface coverage percentages ranging from 85.5% to 100.0%, and thickness variations between 8 to 60 µm or 8 to 40 µm. The composition of the glass constituting the cloth is also specified in the claims, with variations in mass percentages of different components like B2O3, SrO, and F2. The patent also extends to include a prepreg and a printed wiring board comprising the surface-treated glass cloth, indicating potential applications in the electronics and manufacturing industries.
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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.
