Mizuno. has filed a patent for a racket frame design featuring a tubular member with an inner tubular part, outer tubular part, and release layer. The design includes a face portion, grip portion, and shaft portion. GlobalData’s report on Mizuno 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 Mizuno, Sport rackets was a key innovation area identified from patents. Mizuno's grant share as of January 2024 was 31%. Grant share is based on the ratio of number of grants to total number of patents.

Racket frame with tubular member and release layer

Source: United States Patent and Trademark Office (USPTO). Credit: Mizuno Corp

The patent application (Publication Number: US20240033583A1) describes a unique racket frame design for improved performance. The racket frame includes a face portion, a grip portion, and a shaft portion, all made of a tubular member with an inner tubular part, an outer tubular part, and a release layer sandwiched between them. The release layer can be selectively placed in different parts of the face portion, enhancing the overall structure's durability and flexibility. Additionally, the release layer can be positioned between the inner and outer tubular parts in various configurations, allowing for customization based on specific performance requirements.

Furthermore, the patent application details the integration of the racket frame design into a complete racket by adding strings tensioned on the face portion. The innovative use of the release layer in conjunction with the tubular member construction enhances the overall strength and resilience of the racket, making it suitable for high-performance applications. The inclusion of resin layers in the inner and outer tubular parts, along with the release layer, ensures a robust and durable construction that can withstand the rigors of intense gameplay. Overall, the patented design offers a novel approach to racket frame construction, combining advanced materials and strategic placement to optimize performance and durability in sporting equipment.

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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.