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USPTO Data Jan 1 1976 - Oct 27 2026
1 Patents
#6,105 in Tokyo
#15,762 in Japan
Hitachi Tokyo Engineering Co., Ltd.
Forward Citations = 11
6 inventors:
Hitachi Tokyo Engineering Co., Ltd.
Calculating rank
Forward Citations = 11
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6 inventors (with patents filed for the assignee):
Osamu Kakutani (1 out of 14 patents)
Ryuichi Kyomasu (1 out of 23 patents)
Tsutomu Mimata (1 out of 13 patents)
4. Nobuhiro Takasugi (1 out of 3 patents)
5. Isamu Yamazaki (1 out of 4 patents)
6. Kenji Watanabe (1 out of 41 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Tokyo Engineering Co., Ltd.. Retrieved from https://idiyas.com/company/hitachi-tokyo-engineering-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]