Kowa has patented a method for collecting high-quality bagworm silk threads without contaminants. By utilizing the bagworm’s natural behavior to build nests with specific materials, the method involves dissolving or melting the nest materials to obtain pure silk threads. GlobalData’s report on Kowa 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 Kowa, Eye-tracking wearables was a key innovation area identified from patents. Kowa's grant share as of February 2024 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
Method of collecting bagworm silk threads from nests
A recently granted patent (Publication Number: US11926927B2) discloses a method for collecting bagworm silk thread. The method involves placing a naked bagworm, separated from its nest, along with a nest material soluble in a solvent that does not harm the silk thread. The bagworm is then allowed to build a nest using the material, which is later dissolved in the solvent, separating it from the silk thread. Additionally, the method includes a step for collecting the bagworm nest before the dissolving process. The solvent used can be water or a low-polarity solvent, ensuring the integrity of the silk thread throughout the collection process.
Another aspect of the patented method involves using a thermally meltable nest material instead of a solvent-soluble one. The naked bagworm builds a nest with this material, which is then melted under controlled heating without damaging the silk thread. The melted material is separated from the silk thread, ensuring a clean collection process. The method also includes steps for collecting the bagworm nest, cleaning the separated silk thread, and drying it. Furthermore, the patent claims the creation of an unwoven fabric made from the bagworm silk thread obtained through this collection method. The method's innovative approach to collecting bagworm silk thread ensures the preservation of the thread's quality and opens up possibilities for the production of unique fabrics.
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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.
