Nippo Corporation is a leading construction company based in Japan. With over 50 years of experience in the industry, we specialize in a wide range of construction services including building construction, civil engineering, and renovation projects. Our commitment to quality, innovation, and sustainability has earned us a reputation for excellence in the construction industry. Visit our website to learn more about our services and projects.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#2,020 in Tokyo

#4,699 in Japan

Tokyo, Japan

Nippo Corporation

Forward Citations = 14

19 inventors:

Yasushi Iwama (5 out of 6 patents)

Yutaka Tanaka (3 out of 7 patents)

Hiroshi Enomoto (3 out of 5 patents)

4. Hideyuki Goto (2 out of 2 patents)

5. Satoru Kajiwara (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippo Corporation. Retrieved from https://idiyas.com/company/nippo

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]

5 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]