CIPO Patents = 1

Forward Citations = 31

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7 inventors (with patents filed for the assignee):

Makoto Saito (1 out of 102 patents)

Takeshi Kuroda (1 out of 20 patents)

Kenzo Shinkubo (1 out of 1 patent)

4. Yuzo Endoh (1 out of 1 patent)

5. Katsuhiko Endo (1 out of 1 patent)

6. Masao Saitoh (1 out of 1 patent)

7. Yuzo Endo (1 out of 1 patent)

8. Masao Saitoh (0 patent)

2 patents: Sort by Forward Citations

1. 4982534 - Suspended membrane structure (1991-01-08),

2. 3971177 - Earth anchor work method and anchor device (1976-07-27),

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#4,361 in Tokyo

#11,124 in Japan

Tokyo, Japan

Mitsui Construction Co., Ltd.

Forward Citations = 31

7 inventors:

Makoto Saito (1 out of 102 patents)

Takeshi Kuroda (1 out of 20 patents)

Kenzo Shinkubo (1 out of 1 patent)

4. Yuzo Endoh (1 out of 1 patent)

5. Katsuhiko Endo (1 out of 1 patent)

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

1 patent (CIPO):

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]