% Expired Patents = 42.9

EPO Patents = 13

Forward Citations = 42

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23 inventors (with patents filed for the assignee):

Takamichi Hoshino (4 out of 24 patents)

Toshifumi Yoshikawa (4 out of 9 patents)

Satoru Toriyabe (4 out of 9 patents)

4. Atsuya Fujino (4 out of 16 patents)

5. Shunichi Tanae (4 out of 5 patents)

6. Kenji Yoneda (4 out of 20 patents)

7. Hiromi Inaba (3 out of 45 patents)

8. Toru Yamaguchi (3 out of 3 patents)

9. Ryo Okabe (3 out of 3 patents)

10. Yuichiro Nozaki (1 out of 10 patents)

11. Tetsu Sugiura (1 out of 3 patents)

12. Masafumi Makino (1 out of 3 patents)

13. Takeshi Shinomiya (1 out of 4 patents)

14. Tetsuo Kojima (1 out of 26 patents)

15. Ryou Okabe (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 8964414 - DC power supply including resonant circuit for reducing switching losses (2015-02-24),

2. 7740111 - Elevator group supervisory control system with route preparation section (2010-06-22),

3. 7730999 - Elevator group supervisory control system using target route preparation (2010-06-08),

4. 7562746 - Method, system, and display for elevator allocation using multi-dimensional coordinates (2009-07-21),

5. 7426982 - Elevator group supervisory control system (2008-09-23),

6. 5638266 - Free wheel diode arrangement for neutral point clamped electric power (1997-06-10),

7. 5526919 - Escalator apparatus and method of operation (1996-06-18),

Company Overview

Hitachi Mito Engineering Co., Ltd. is a leading construction and engineering company based in Japan. With a focus on innovation, quality, and sustainability, Hitachi Mito offers a wide range of services including civil construction, infrastructure development, and environmental solutions. The company is known for its expertise in large-scale projects and has a strong reputation for delivering high-quality, cost-effective solutions to its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#42 in Ibaraki

#5,459 in Japan

Ibaraki, Japan

Hitachi Mito Engineering Co., Ltd.

Forward Citations = 42

23 inventors:

Takamichi Hoshino (4 out of 24 patents)

Toshifumi Yoshikawa (4 out of 9 patents)

Satoru Toriyabe (4 out of 9 patents)

4. Atsuya Fujino (4 out of 16 patents)

5. Shunichi Tanae (4 out of 5 patents)

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

13 patents (EPO):

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]