Meidensha has patented a surge arrester design with varistors, closed winding layer, and open cross reinforcement element. The method involves wrapping varistors with resin-impregnated fiberglass thread. GlobalData’s report on Meidensha 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 Meidensha, Lithium-ion batteries was a key innovation area identified from patents. Meidensha's grant share as of May 2024 was 62%. Grant share is based on the ratio of number of grants to total number of patents.
Surge arrester with closed winding layer and open cross winding
A surge arrester patent (Publication Number: US11996218B2) has been granted, detailing a surge arrester design comprising two opposing end fittings, a stack of varistors arranged between the end fittings, a winding layer made of resin-impregnated fiberglass thread, and a reinforcement element in the form of an open cross winding. The patent specifies the use of a cationically crosslinking epoxy resin for the resin-impregnated fiberglass thread, with the resin containing UV or thermal initiators for enhanced performance.
Furthermore, the patent outlines the method for producing the surge arrester, involving steps such as wrapping the stack with resin-impregnated fiberglass thread to form a closed winding layer and axially wrapping the stack to create an open cross winding. The design also includes a silicone outer housing and emphasizes the importance of the reinforcement element's thickness in relation to the winding layer. The patent highlights specific angles for open rhombic areas between the fiberglass threads in the cross winding, contributing to the surge arrester's overall efficiency and durability.
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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.
