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Hitachi had 49 patents in robotics during Q1 2024. Hitachi Ltd filed patents for a welding system that adjusts disturbance conditions based on welding quality, a mobile robot that absorbs impacts on uneven surfaces while moving, a robot system that predicts future states of objects and determines robot actions, an autonomous distributed coordination system for broad-area search without prior planning, and an automatic analyzer for smooth discarding of used reaction containers. GlobalData’s report on Hitachi gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Hitachi grant share with robotics as a theme is 36% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Welding system, welding condition calculation apparatus,and welding condition calculation method (Patent ID: US20240100615A1)

The patent filed by Hitachi Ltd. describes a welding system that includes a setting apparatus to move the material to be welded to a desired position based on disturbance conditions, a welding robot to weld the material according to working conditions, an inspection apparatus to assess welding quality, a storage apparatus to store data related to working conditions, disturbance conditions, and welding quality, and a determination unit to adjust disturbance conditions based on achieved welding quality. The system aims to optimize welding processes by adapting disturbance conditions for future welding based on current welding quality.

The patent also includes claims for a welding system and a welding condition calculation apparatus. The system involves adjusting disturbance conditions based on past working conditions, maximizing the probability of achieving required quality using Bayesian statistics, making normal welding more difficult in future processes, and adapting to changing groove gaps in the material to be welded. The welding condition calculation apparatus controls the welding process based on achieved welding quality, changing disturbance conditions for future processes, and adjusting working conditions if required. Overall, the patent focuses on enhancing welding quality by dynamically adjusting disturbance conditions and working conditions based on past performance.

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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.