% Expired Patents = 33.3

EPO Patents = 3

Trademarks = 7

Forward Citations = 8

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16 inventors (with patents filed for the assignee):

Taku Matsuda (3 out of 3 patents)

Kentaro Tokura (2 out of 2 patents)

Naoki Nagamoto (2 out of 2 patents)

4. Takao Kakehashi (2 out of 2 patents)

5. Motohiro Ikehara (2 out of 2 patents)

6. Hideaki Uchiyama (2 out of 2 patents)

7. Ryo Sakamoto (1 out of 25 patents)

8. Ryuichiro Mine (1 out of 1 patent)

9. Hiroshi Shinjo (1 out of 7 patents)

10. Takafumi Noguchi (1 out of 15 patents)

11. Manabu Kanematsu (1 out of 1 patent)

12. Kazuhito Sugaya (1 out of 1 patent)

13. Masahiro Nakajima (1 out of 1 patent)

14. Kouichi Hasuo (1 out of 1 patent)

15. Junji Sako (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 12404213 - Composition containing aggregate, binder, and water (2025-09-02),

2. 11220457 - Mortar and method for producing the same (2022-01-11),

3. 10977825 - Position measurement device and position measurement method (2021-04-13),

4. 10816320 - Sleeve position inspecting device and sleeve position inspecting method (2020-10-27),

5. 10807911 - Concrete composition and production method therefor (2020-10-20),

6. 10465374 - Frame structure and method of constructing frame structure (2019-11-05),

Company Overview

Sumitomo Mitsui Construction Co., Ltd. is a leading construction company based in Japan. With a history spanning over a century, the company has created numerous innovative and iconic structures around the world. They specialize in high-rise buildings, bridges, and infrastructure projects, utilizing cutting-edge technology and sustainable construction practices. Committed to quality and safety, Sumitomo Mitsui Construction Co., Ltd. continues to be a trusted partner in shaping the future of construction.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#2,469 in Tokyo

#5,990 in Japan

Tokyo, Japan

Sumitomo Mitsui Construction Co., Ltd.

Forward Citations = 8

16 inventors:

Taku Matsuda (3 out of 3 patents)

Kentaro Tokura (2 out of 2 patents)

Naoki Nagamoto (2 out of 2 patents)

4. Takao Kakehashi (2 out of 2 patents)

5. Motohiro Ikehara (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumitomo Mitsui Construction Co., Ltd.. Retrieved from https://idiyas.com/company/sumitomo-mitsui-construction-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]

3 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]