Oki Electric Industry had 16 patents in advanced materials during Q4 2023. The Oki Electric Industry Co Ltd filed patents for piezoelectric film integrated devices and piezoelectric-body film joint substrates. These devices include multiple electrodes and monocrystalline piezoelectric films with different crystal structures, allowing for improved performance and functionality. The substrates also feature multiple layers of piezoelectric films and electrodes, with varying heights to optimize performance. GlobalData’s report on Oki Electric Industry gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Oki Electric Industry grant share with advanced materials 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: Piezoelectric-body film joint substrate and manufacturing method thereof (Patent ID: US20230320217A1)
The patent filed by Oki Electric Industry Co Ltd describes a piezoelectric-body film joint substrate consisting of a substrate with a substrate electrode, a first piezoelectric-body film with a first piezoelectric film and upper electrode film, and a second piezoelectric-body film with a different piezoelectric film and upper electrode film. The second film may have a smaller area than the first film and may include a lower electrode film on the opposite side of the upper electrode film. The first film may also have a lower electrode film, and the materials used for the piezoelectric films can vary.
The method of manufacturing this piezoelectric-body film joint substrate involves peeling off the films from separate substrates and sticking them onto a third substrate. The second film may have a lower electrode film, and the first film may have a lower electrode film as well. Both piezoelectric films are described as monocrystalline, and the surface area of the electrode on the third substrate is larger than the area where the first piezoelectric-body film is stuck. This method allows for the creation of a joint substrate with distinct piezoelectric properties in each film, enhancing the overall functionality of the substrate.
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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.
