Mizuno has been granted a patent for an object hardness measuring device. The device includes a load unit that applies a load to the measurement object, a measuring unit that measures the movement distance or change in load when the load is applied, and a holding unit that holds the measurement object. The device is designed to measure the hardness of objects accurately and efficiently. 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 September 2023 was 31%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for an object hardness measuring device

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

A recently granted patent (Publication Number: US11768141B2) describes an object hardness measuring device and method for measuring the hardness of a measurement object. The device includes a first side portion and a second side portion that press against opposite sides of the measurement object. A pedestal unit, which is movable, is attached to the second side portion. A load unit applies a load to the measurement object by moving the second side portion with respect to the first side portion. A measuring unit is used to measure either the movement distance of the second side portion or the change in load when the second side portion is moved.

The device also includes a holding unit connected to a slide rail assembly on the pedestal unit. This holding unit is used to hold the measurement object and can be moved between the first and second side portions.

The method for measuring hardness involves moving the second side portion with respect to the first side portion using the pedestal unit. The measurement object is held by the holding unit, which is moved between the first and second side portions using the slide rail assembly. The load acting on the measurement object is measured by the first and second side portions, along with either the movement distance of the second side portion or the change in load when the second side portion is moved.

In another embodiment of the invention, the pedestal unit includes a rotation table that allows the holding unit to rotate along the top surface of the bottom plate.

Overall, this patent describes a device and method for accurately measuring the hardness of an object by applying a load and measuring the resulting movement or change in load. The device includes a movable pedestal unit and a holding unit for securing the measurement object. This invention could have applications in various industries where hardness testing is important, such as manufacturing and materials science.

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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.