% Expired Patents = 50.0

Forward Citations = 29

Loading Chart...

7 inventors (with patents filed for the assignee):

Masaaki Fujii (2 out of 21 patents)

Yoshinori Iketaki (2 out of 32 patents)

Toshio Suzuki (2 out of 32 patents)

4. Yasunori Igasaki (1 out of 29 patents)

5. Kimihisa Yamamoto (1 out of 14 patents)

6. Takashige Omatsu (1 out of 3 patents)

7. Takeshi Watanabe (1 out of 13 patents)

2 patents: Sort by Forward Citations

#116 in Chiba

#11,133 in Japan

Nippon Roper Kk

Forward Citations = 29

7 inventors:

Masaaki Fujii (2 out of 21 patents)

Yoshinori Iketaki (2 out of 32 patents)

Toshio Suzuki (2 out of 32 patents)

4. Yasunori Igasaki (1 out of 29 patents)

5. Kimihisa Yamamoto (1 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Roper Kk. Retrieved from https://idiyas.com/company/nippon-roper-kk

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]