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USPTO Data Jan 1 1976 - Oct 27 2026
7 Patents
#2,290 in Tokyo
#5,462 in Japan
Hitachi Elevator Engineering & Service Co., Ltd.
Forward Citations = 87
14 inventors:
Hitachi Elevator Engineering & Service Co., Ltd.
Calculating rank
Forward Citations = 87
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14 inventors (with patents filed for the assignee):
Yutaka Hirama (2 out of 2 patents)
Takato Yamakoshi (2 out of 2 patents)
Mikio Kawashima (2 out of 2 patents)
4. Yoshimitsu Onoda (2 out of 5 patents)
5. Satoshi Fukuda (1 out of 17 patents)
6. Hiromi Inaba (1 out of 45 patents)
7. Yoshio Sakai (1 out of 58 patents)
8. Kiyoshi Nakamura (1 out of 43 patents)
9. Sadao Hokari (1 out of 16 patents)
10. Takeki Ando (1 out of 15 patents)
11. Naoyuki Outi (1 out of 1 patent)
12. Sadayuki Hori (1 out of 1 patent)
13. Kenzoh Takahashi (1 out of 1 patent)
14. Shigeru Arakawa (1 out of 1 patent)
7 patents:
Company Overview
Hitachi Elevator Engineering & Service Co., Ltd. is a subsidiary of Hitachi Ltd., a global leader in technology and engineering solutions. The company specializes in the design, installation, and maintenance of elevators, escalators, and moving walkways. With a commitment to innovation and customer service, Hitachi Elevator Engineering & Service Co., Ltd. provides safe and reliable vertical transportation solutions for commercial and residential buildings worldwide.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Elevator Engineering & Service Co., Ltd.. Retrieved from https://idiyas.com/company/hitachi-elevator-engineering-and-service-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]