EPO Patents = 1

Forward Citations = 0

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6 inventors (with patents filed for the assignee):

Kyojiro Inoue (1 out of 4 patents)

Mitsugu Nakagawa (1 out of 1 patent)

Kurisu Hiroki (0 patent)

4. Yamamoto Setsuo (0 patent)

5. Enomoto Kazumi (0 patent)

6. Nakagawa Mitsugu (0 patent)

1 patent: Sort by Forward Citations

#350 in Aichi

#15,745 in Japan

Marunaka Co., Ltd.

Forward Citations = 0

6 inventors:

Kyojiro Inoue (1 out of 4 patents)

Mitsugu Nakagawa (1 out of 1 patent)

Kurisu Hiroki (0 patent)

4. Yamamoto Setsuo (0 patent)

5. Enomoto Kazumi (0 patent)

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

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]