Company Badge
USPTO Data Jan 1 1976 - Oct 13 2026
2 Patents
#4,366 in Tokyo
#11,133 in Japan
Hitachi Co., Ltd
Forward Citations = 42
13 inventors:
Hitachi Co., Ltd
Forward Citations = 42
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13 inventors (with patents filed for the assignee):
Hiroki Kitagawa (1 out of 34 patents)
Yoshinori Ishizawa (1 out of 28 patents)
Hidehiro Nakamura (1 out of 17 patents)
4. Masami Yusa (1 out of 35 patents)
5. Yoshiki Sota (1 out of 27 patents)
6. Toshio Yamazaki (1 out of 11 patents)
7. Yasuhiko Awano (1 out of 3 patents)
8. Fumio Inoue (1 out of 31 patents)
9. Yoshiaki Tsubomatsu (1 out of 14 patents)
10. Koji Miyata (1 out of 6 patents)
11. Masanori Aoki (1 out of 5 patents)
12. Shigeki Ichimura (1 out of 4 patents)
13. Yorio Iwasaki (1 out of 12 patents)
2 patents:
Company Overview
Hitachi Co., Ltd is a Japanese multinational conglomerate company. It offers a wide range of products and services, including information technology, electronic devices, power systems, automotive systems, industrial systems, and more. With a commitment to innovation and social contributions, Hitachi strives to contribute to society through its advanced technologies.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Co., Ltd. Retrieved from https://idiyas.com/company/hitachi-company
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]
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]
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]