EPO Patents = 2

Forward Citations = 1

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9 inventors (with patents filed for the assignee):

Noboru Tamura (2 out of 3 patents)

Nakaba Ichikawa (2 out of 3 patents)

Hisashi Yamazaki (1 out of 16 patents)

4. Takeshi Takabatake (1 out of 4 patents)

5. Kiyoto Araki (1 out of 7 patents)

6. Taro Nishino (1 out of 6 patents)

7. Masaki Aruga (1 out of 3 patents)

8. Toshiyuki Fuyutsume (1 out of 9 patents)

9. Kaname Yasuda (1 out of 1 patent)

2 patents: Sort by Forward Citations

#31 in Yamanashi 400-0862

#11,133 in Japan

Koike Co., Ltd.

Forward Citations = 1

9 inventors:

Noboru Tamura (2 out of 3 patents)

Nakaba Ichikawa (2 out of 3 patents)

Hisashi Yamazaki (1 out of 16 patents)

4. Takeshi Takabatake (1 out of 4 patents)

5. Kiyoto Araki (1 out of 7 patents)

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

2 patents (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]