NEC had four patents in advanced materials during Q1 2024. NEC Corp filed a patent for a structure, sliding member, and connector with a nanocarbon material coating on a metal surface to improve abrasion resistance and maintain low contact resistance over time. The coating includes an organic compound with functional groups that have affinity for both the metal and nanocarbon material. GlobalData’s report on NEC gives a 360-degree view of the company including its patenting strategy. Buy the report here.

NEC grant share with advanced materials as a theme is 50% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Structure, sliding member, connector, and method for producing structure (Patent ID: US20240002990A1)

The patent filed by NEC Corp. describes a structure, sliding member, and connector with a surface that has excellent abrasion resistance and low contact resistance over time. This is achieved by incorporating a nanocarbon material onto at least a partial surface of a metal, along with a coating containing the nanocarbon material and an organic compound with specific functional groups that enhance affinity for both the metal and the nanocarbon material. The nanocarbon material can include carbon nanotubes, carbon nanohorn aggregates, graphene, or fullerene, with the preference for a carbon nanohorn aggregate. The organic compound used in the coating has functional groups like thiol, amide, hydroxy, or carboxy groups, and can have various hydrocarbon groups on its backbone.

The method for producing the structure involves coating the metal surface with the nanocarbon material directly or with a mixture of the nanocarbon material and the organic compound. The structure can be applied to sliding members and connectors, enhancing their durability and performance. The specific functional groups in the coating facilitate strong bonding between the metal and the nanocarbon material, ensuring long-lasting abrasion resistance and low contact resistance. Overall, the invention aims to provide a structure that maintains high performance characteristics over an extended period, particularly in applications where abrasion resistance and low contact resistance are crucial.

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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.