Horiba has developed a particle size distribution measuring device that accurately measures particle size distribution even in the presence of similar-shaped particles. The device uses image processing and particle discrimination based on light refraction to differentiate between different particles. GlobalData’s report on Horiba 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 Horiba, Optoelectronic biosensors was a key innovation area identified from patents. Horiba's grant share as of January 2024 was 32%. Grant share is based on the ratio of number of grants to total number of patents.

Particle size distribution measuring device using light refraction for discrimination

Source: United States Patent and Trademark Office (USPTO). Credit: Horiba Ltd

A recently granted patent (Publication Number: US11879822B2) discloses a particle size distribution measuring device that includes a light irradiating device, an image capturing device, and hardware processors for analyzing image data. The device is designed to capture images of particle groups with translucent particles, where the light passing through these particles creates distinct light and dark regions due to refraction. The hardware processors are configured to differentiate between different types of translucent particles, such as measurement targets and bubbles, based on the differences in the light and dark regions observed in the images.

Furthermore, the device includes a second hardware processor that calculates the overall particle size distribution of the particle group. By analyzing the images and discriminating between different types of translucent particles, such as measurement targets and bubbles, the device can accurately determine the target particle size distribution by subtracting the influence of the second translucent particle distribution from the overall distribution. The patent also details the use of specific techniques, such as irradiating the particle group with parallel and slanting light, to enhance the discrimination process based on characteristics like size, shape, and brightness of the light and dark regions in the images. Overall, this patented technology offers a sophisticated solution for measuring particle size distribution with improved accuracy and efficiency.

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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.