Hitachi had 74 patents in batteries during Q2 2024. The patents filed by Hitachi Ltd in Q2 2024 include a cable clamp for a hydraulic excavator with a tension sensor to detect load, an electrode active material for an electrochemical element with specific crystallite sizes, and a battery management device that estimates battery condition based on output voltage difference during rest periods after charging/discharging. GlobalData’s report on Hitachi gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Hitachi had no grants in batteries as a theme in Q2 2024.
Recent Patents
Application: Electric construction machine (Patent ID: US20240159019A1)
The patent filed by Hitachi Ltd. describes a cable clamp system in a hydraulic excavator that supports a power feeding cable connected to a power feeding port. The system includes a tension sensor that detects the load applied to a wire bridged between the cable clamp and an arm member on the upper revolving structure. A controller issues an alarm when the tension detected by the sensor exceeds a prescribed threshold value.
The electric construction machine described in the patent includes a cable support member that can be displaced in a vehicle body-side support member to grip the power feeding cable. A guide member regulates the displacement of the cable support member in a linear direction, while a load detecting sensor detects changes in response to this displacement. A controller is configured to issue an alarm when the detection value of the load detecting sensor surpasses a prescribed threshold value. The system also includes features such as an elastic member that deforms elastically, a changing member that responds to displacement, and various alarm methods like warning sounds, lights, displays, or movement limits.
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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.
