Nagano Keiki Co., Ltd.

Calculating rank

EPO Patents = 1

Forward Citations = 0

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7 inventors (with patents filed for the assignee):

Ayumu Sakamoto (1 out of 3 patents)

Keiichi Fujita (1 out of 3 patents)

Tsutomu Yamate (1 out of 3 patents)

4. Yuma Yoshida (3 patents)

5. Daiki Aruga (2 patents)

6. Ryousuke Kubo (0 patent)

7. Ryosuke Yanagisawa (0 patent)

1 patent: Sort by Forward Citations

#6,110 in Tokyo

#15,774 in Japan

Forward Citations = 0

7 inventors:

Ayumu Sakamoto (1 out of 3 patents)

Keiichi Fujita (1 out of 3 patents)

Tsutomu Yamate (1 out of 3 patents)

4. Yuma Yoshida (3 patents)

5. Daiki Aruga (2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nagano Keiki Co., Ltd.. Retrieved from https://idiyas.com/company/nagano-keiki

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]