Japan Display had two patents in internet of things during Q4 2023. Japan Display Inc filed patents for detection devices that are wearable on a living body, equipped with a light source emitting near-infrared light, an optical sensor for detecting the light, and a control circuit for measuring blood flow perfusion index. The device can differentiate between vein and dermatoglyphic images based on the perfusion index. Additionally, the device includes a wireless power receiving element for charging the battery, with the optical sensor and power receiving coil strategically placed inside the housing. GlobalData’s report on Japan Display gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Japan Display grant share with internet of things as a theme is 0% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Detection device (Patent ID: US20230410552A1)
The patent filed by Japan Display Inc. describes a detection device that includes a ring-shaped housing wearable on a living body, a first light source emitting near-infrared light, an optical sensor detecting the light, and a control circuit measuring a perfusion index of blood flow based on image data acquired by the sensor. The control circuit distinguishes between a vein image and a dermatoglyphic image based on the perfusion index, with a predetermined value serving as a threshold for classification.
Additionally, the patent outlines a variation of the detection device that includes a force sensor capable of detecting the force of an object inserted into the housing. The control circuit in this version determines whether the image data acquired by the optical sensor is a vein image or a dermatoglyphic image based on the force detected by the force sensor. The patent also mentions the use of a second light source emitting red light for measuring the perfusion index and storing composite images obtained by mapping vein and dermatoglyphic images.
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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.
