Lightbridge Multi-Zone Fuel Element Granted Japanese Patent, Covering Fuel Assemblies and 3D Printing Manufacturing Methods
Advanced nuclear fuel technology company Lightbridge Corporation recently announced that its Japanese patent application for a multi-zone fuel element has been granted by the Japan Patent Office. The patent covers the fuel element design, fuel assemblies incorporating the design, and methods of producing the element via additive manufacturing, i.e., 3D printing. According to the disclosure, the patent involves a fuel rod composed of three layers of different materials. The thickness of the three layers can vary along the length of the fuel rod, thereby regulating fuel performance at different positions in the reactor to enhance reactor operating performance and safety margins. In addition to the fuel rod itself, the patent also covers fuel assemblies for mounting these fuel rods.
2026-09-02
