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USPTO Data Jan 1 1976 - Nov 10 2026
42,760 Patents
#3 in Tokyo
#4 in Japan
#14 in the World
Hitachi, Ltd.
Forward Citations = 634,306
27,948 inventors:
Hitachi, Ltd.
Calculating rank
% Expired Patents = 28.3
CIPO Patents = 90
EPO Patents = 2,440
Trademarks = 8
Forward Citations = 634,306
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27,948 inventors (with patents filed for the assignee):
Akira Yamamoto (276 out of 416 patents)
Yoshiaki Eguchi (201 out of 213 patents)
Harukazu Miyamoto (182 out of 228 patents)
4. Kiyoo Itoh (181 out of 222 patents)
5. Hiroyuki Minemura (180 out of 225 patents)
6. Takeshi Maeda (168 out of 211 patents)
7. Toshimichi Minowa (163 out of 170 patents)
8. Masayuki Yamamoto (151 out of 166 patents)
9. Naoto Matsunami (139 out of 140 patents)
10. Yasutomo Yamamoto (133 out of 134 patents)
11. Motoyasu Terao (133 out of 179 patents)
12. Yasunori Kaneda (132 out of 133 patents)
13. Katsumi Kondo (131 out of 156 patents)
14. Koji Hirata (130 out of 268 patents)
15. Yuichiro Nakaya (125 out of 127 patents)
Core Competencies:
Autonomous Docking
Freight Trucks
AI Anomaly Detection
Predictive Maintenance
Logistics Management
Power Conversion
Edge Device
Machine Learning
Robotics Control
Data Processing
Industrial Systems
Virtual Reality
42,760 patents:
10. 12786173 - Information sharing system, information sharing method, and analysis device (2026-11-03),
Company Overview
Hitachi, Ltd., headquartered in Tokyo, Japan, is a global leader in the development of autonomous systems, specializing in technologies that enhance logistics and operational efficiency. The company focuses on innovative solutions such as autonomous docking, freight trucks, and AI-driven anomaly detection. Hitachi also excels in predictive maintenance and logistics management, leveraging machine learning and edge devices to optimize performance across various sectors. Its commitment to advancing power conversion technologies further solidifies its position in the autonomous systems landscape.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi, Ltd.. Retrieved from https://idiyas.com/company/hitachi
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
90 patents (CIPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
2,440 patents (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]