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USPTO Data Jan 1 1976 - Oct 20 2026
1 Patents
#6,102 in Tokyo
#15,759 in Japan
Hitachi Ltd. Et Al.
Forward Citations = 20
4 inventors:
Hitachi Ltd. Et Al.
Forward Citations = 20
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4 inventors (with patents filed for the assignee):
Toshihiko Tanaka (1 out of 124 patents)
Akira Imai (1 out of 124 patents)
Norio Hasegawa (1 out of 108 patents)
4. Hiroshi Fukuda (1 out of 63 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Ltd. Et Al.. Retrieved from https://idiyas.com/company/hitachi-ltd-et-al
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]