Kobe Steel had six patents in batteries during Q4 2023. The patent filed by Kobe Steel Ltd in Q4 2023 is for a battery case designed for electric vehicles. The case features a polygonal frame shape with R shapes on inner sides of corner parts, along with a bathtub-shaped tray pressure-welded to the frame. GlobalData’s report on Kobe Steel gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Kobe Steel grant share with batteries as a theme is 16% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Battery case for electric vehicles and manufacturing method (Patent ID: US20230327257A1)
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The patent filed by Kobe Steel Ltd. describes a battery case for an electric vehicle that consists of a frame with a polygonal shape and R shapes on the inner sides of the corners, along with a bathtub-shaped tray pressure-welded to the frame. The frame can be made of aluminum alloy or steel, while the tray is composed of a plate material made of the same material as the frame or a coated/laminated steel plate. The tray includes a negative angle part and a coolant flow path molded in the bottom wall.
The method for manufacturing the battery case involves preparing a frame and a flat plate molding target member, overlaying and pressurizing the molding target member to deform it into a tray shape, integrating it with the frame, and detaching the corner member. The molding target member can be pressurized using a rubber bulge method, with the process potentially involving a restraining die to control the deformation. The method may include pressurizing the molding target member in two stages to achieve the final integrated structure.
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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.
