EPO Patents = 1

Forward Citations = 13

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7 inventors (with patents filed for the assignee):

Setsuo Yamamoto (1 out of 6 patents)

Hiroki Kurisu (1 out of 3 patents)

Naoki Takada (1 out of 3 patents)

4. Mitsugu Nakagawa (1 out of 1 patent)

5. Katsushi Tsuge (1 out of 1 patent)

6. Yukihiro Ishikawa (1 out of 1 patent)

7. Yuichiro Manabe (1 out of 1 patent)

8. Ishikawa Yukihiro (0 patent)

2 patents: Sort by Forward Citations

#7 in Obu

#11,133 in Japan

Marunaka Co., Ltd.

Forward Citations = 13

7 inventors:

Setsuo Yamamoto (1 out of 6 patents)

Hiroki Kurisu (1 out of 3 patents)

Naoki Takada (1 out of 3 patents)

4. Mitsugu Nakagawa (1 out of 1 patent)

5. Katsushi Tsuge (1 out of 1 patent)

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