% Expired Patents = 25.0

Forward Citations = 3

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15 inventors (with patents filed for the assignee):

Kazuaki Miyagawa (4 out of 4 patents)

Tomohiro Kinoshita (3 out of 5 patents)

Takumi Ishii (2 out of 5 patents)

4. Wataru Kitamura (1 out of 34 patents)

5. Yuya Sakurai (1 out of 6 patents)

6. Keisuke Shiota (1 out of 1 patent)

7. Hiroyuki Imashio (1 out of 1 patent)

8. Hitoshi Naito (1 out of 1 patent)

9. Yasuke Imano (1 out of 1 patent)

10. Hisaya Kamura (1 out of 2 patents)

11. Susumu Kuwahara (1 out of 1 patent)

12. Ryota Tobari (1 out of 1 patent)

13. Mitsutoshi Yoshinaga (1 out of 1 patent)

14. Hiromitsu Morioka (1 out of 1 patent)

15. Yuki Hatanaka (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 12297657 - Steel damper for seismic isolation and seismic isolation structure (2025-05-13),

2. 9879412 - Pin joint type structural member made of double steel pipe for restraining buckling thereof (2018-01-30),

3. 9416504 - Bridge pier structure (2016-08-16),

4. 9045913 - Brace member (2015-06-02),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#283 in

#7,588 in Japan

JP

Jfe Civil Engineering & Construction Corporation

Forward Citations = 3

15 inventors:

Kazuaki Miyagawa (4 out of 4 patents)

Tomohiro Kinoshita (3 out of 5 patents)

Takumi Ishii (2 out of 5 patents)

4. Wataru Kitamura (1 out of 34 patents)

5. Yuya Sakurai (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jfe Civil Engineering & Construction Corporation. Retrieved from https://idiyas.com/company/jfe-civil-engineering-and-construction

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]