ASICS has been granted a patent for a user-dedicated last that simplifies manufacturing without large-scale equipment. The method involves forming foot length and width members on a base plate, creating a last for footwear upper assembly. GlobalData’s report on ASICS 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 ASICS, Footwear 3D Printing was a key innovation area identified from patents. ASICS's grant share as of February 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.

Method for manufacturing user-dedicated footwear last without large equipment

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

A recently granted patent (Publication Number: US11903454B2) discloses a method for manufacturing a last used in forming a footwear upper to configure an article of footwear. The method involves disposing foot length forming models and foot width forming models on a base member, processing the base member to form foot length and width forming members, and assembling them to create the last. The foot models are generated from user data, including a three-dimensional model of the foot obtained using image data captured by a portable terminal.

Furthermore, the method includes cutting the foot length and width forming members from the base member, covering the last with an unformed upper made of a fiber sheet with heat-shrinkable yarn, and applying heat to shape the upper. The process also involves forming position identifiers on the foot forming members for correct assembly. The position identifiers can include laser-printed marks, two-dimensional codes, one-dimensional codes, or integrated circuit chips, ensuring accurate alignment during assembly. The base member can be made of materials like paper, resin, or butcher-block material, and plate nesting can be performed automatically using dedicated software for efficient placement of the forming models. Overall, the method offers a detailed and technologically advanced approach to manufacturing lasts for footwear production.

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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.