Mitsubishi Electric had eight patents in advanced materials during Q4 2023. Mitsubishi Electric Corp filed a patent for a computer-implemented method for designing a metalens with nano-structures arranged on a substrate, optimizing design parameters to approximate a target near-field distribution. Another patent relates to an energy management system for buildings, including heat pumps, thermal energy storage devices, renewable energy generation devices, and a controller to optimize energy usage based on the state of charge of the storage devices. GlobalData’s report on Mitsubishi Electric gives a 360-degreee view of the company including its patenting strategy. Buy the report here.

Mitsubishi Electric grant share with advanced materials as a theme is 50% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Metalens with corrected phase (Patent ID: US20230367035A1)

The patent by Mitsubishi Electric Corp. describes a computer-implemented method for designing a metalens with a metasurface composed of nano-structures on a substrate using preliminary simulation data. The method involves partitioning the nano-structures, computing a mapping function to predict near-field behavior, tuning design parameters to match a target distribution, and generating a fabricable design based on optimized parameters. The process aims to achieve precise control over the near-field behavior of the metalens by iteratively adjusting design parameters until fabrication tolerances are met, using interpolators to predict phase distributions, and simulating interactions with incident wavefronts.

Additionally, the method allows for the arrangement of the metasurface into various grid shapes, such as rectangular, hexagonal, triangular, or phyllotactic patterns like a double-spiral. The substrate is typically silicon dioxide, while the nano-structures are made from titanium dioxide. Interpolations are performed to predict phase distributions over unit cells, with corrections made until they match the target distribution within a specified error tolerance. The approach involves solving Maxwell's equations to simulate the interaction of different combinations of nano-fins with incident wavefronts, providing a comprehensive framework for designing advanced metalenses with tailored optical properties.

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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.