Hitachi had 159 patents in digitalization during Q2 2024. Hitachi Ltd filed patents for a dialogue support system that outputs question/answer pairs based on emotion and similarity analysis, a computer system for evaluating social value in text data, a portable information terminal for granting charging permission based on positional information, an image generating and retrieving apparatus for finding desired images easily, and a delivery date answering apparatus for managing product inventory and order fulfillment. 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 digitalization as a theme in Q2 2024.
Recent Patents
Application: Dialogue support system and dialogue support method (Patent ID: US20240211700A1)
The patent filed by Hitachi Ltd. describes a dialogue support system that utilizes question/answer pair candidates with question sentence vectors, emotion vectors, and answer sentence vectors to generate question/answer pairs. These pairs are categorized into groups based on similarities between the vectors, with sentence dependence pairs and emotion dependence pairs being output based on the variance of the vectors in each group. The system also includes a method for calculating and storing sentence dependence and emotion dependence degrees for the generated pairs.
Furthermore, the dialogue support system method involves extracting questions and emotions from dialogues between questioners and respondents, determining question sentence vectors, emotion vectors, and answer sentence vectors based on the extracted information, and calculating and storing sentence dependence and emotion dependence degrees. The system can also receive search instructions, select question/answer pairs based on similarities between vectors, and output answer sentences based on the selected pairs. Overall, the system and method aim to enhance dialogue support by considering the relationships between question sentences, emotions, and answer sentences in generating appropriate responses.
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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.
