Forward Citations = 44

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6 inventors (with patents filed for the assignee):

Chuichi Saito (2 out of 19 patents)

Masamitsu Hanano (2 out of 3 patents)

Hiroumi Iyoda (1 out of 4 patents)

4. Hideo Kuwajima (1 out of 1 patent)

5. Hayashi Nakazawa (1 out of 4 patents)

6. Makoto Ueta (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5040659 - Indicating apparatus for passenger conveyor, indicating body used (1991-08-20),

2. 4819781 - Passenger conveyor with unitary balustrade panel support members (1989-04-11),

3. 4811829 - Frame of passenger conveyor (1989-03-14),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#3 in Katsuta

#8,929 in Japan

Katsuta, Japan

Hitachi Elevator Engineering Co., Ltd.

Forward Citations = 44

6 inventors:

Chuichi Saito (2 out of 19 patents)

Masamitsu Hanano (2 out of 3 patents)

Hiroumi Iyoda (1 out of 4 patents)

4. Hideo Kuwajima (1 out of 1 patent)

5. Hayashi Nakazawa (1 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Elevator Engineering Co., Ltd.. Retrieved from https://idiyas.com/company/hitachi-elevator-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]