Yokohama Rubber has been granted a patent for a pneumatic tire design featuring unique lug grooves and sipes in the intermediate land portion. The design ensures optimal performance and durability, with a groove area ratio of 15% to 25% and precise positioning of sipes within defined pitches. GlobalData’s report on Yokohama Rubber 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 Yokohama Rubber, Anti-skid tyre treads was a key innovation area identified from patents. Yokohama Rubber's grant share as of May 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Pneumatic tire with lug grooves and sipes
A recently granted patent (Publication Number: US11999197B2) discloses a pneumatic tire design featuring an annular tread portion with four main grooves, including inner and outer main grooves, along with center, intermediate, and shoulder land portions. The intermediate land portions are equipped with lug grooves and sipes that do not overlap in the tire circumferential direction, ensuring optimal traction and performance. The lug grooves have specific dimensions and relationships with adjacent pitches, while the sipes are strategically positioned within the pitches. The groove area ratio in the intermediate land portions falls within a range of 15% to 25%, contributing to the tire's overall functionality.
Furthermore, the patent details specific measurements and relationships within the tire design, such as the distance from the apex of the lug grooves to adjacent pitches, lateral distances to the inner main grooves, and groove area ratios between different land portions in the ground contact region. The tire design also incorporates a repeating pattern of five pitch lengths around the tire's circumference, enhancing stability and performance. These features work together to optimize the tire's grip, handling, and overall performance across various road conditions, making it a promising innovation in the field of pneumatic tire technology.
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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.
