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For the Inventor, By the Inventor

Kyoto, Japan

Keigan Inc.


USPTO Granted Patents = 2


Forward Citations = 4

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3 inventors (with patents filed for the assignee):

goldMedal Takashi Tokuda (2 out of 7 patents)

silverMedal Hiroyuki Oku (1 out of 1 patent)

bronzeMedal Naoaki Kurimoto (1 out of 1 patent)


2 patents:

1. 12743089 - Operation setting device of autonomous bogie, non-transitory computer readable medium storing operation setting program, and operation setting method (2026-09-22),
2. 10507586 - Motor module system (2019-12-17),
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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#292 in Kyoto 615-0031

#11,124 in Japan

Kyoto, JP
Kyoto, Japan

Keigan Inc.

Forward Citations = 4

3 inventors:

goldMedal Takashi Tokuda (2 out of 7 patents)

silverMedal Hiroyuki Oku (1 out of 1 patent)

bronzeMedal Naoaki Kurimoto (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Keigan Inc.. Retrieved from https://idiyas.com/company/keigan

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]
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