% Expired Patents = 50.0

EPO Patents = 4

Forward Citations = 138

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4 inventors (with patents filed for the assignee):

Kiyoshi Sato (2 out of 126 patents)

Ryosuke Ito (2 out of 18 patents)

Hideaki Tamura (2 out of 2 patents)

4. Katsushi Kawakami (2 out of 2 patents)

5. Hideki Nudeshima (4 patents)

6. Hikaru Matsumiya (1 patent)

7. Takashi Yamazaki (4 patents)

8. Takashi Yoshida (17 patents)

9. Takanori Okubo (0 patent)

10. Tadaaki Chikashige (0 patent)

11. Atsushi Kataoka (0 patent)

2 patents: Sort by Forward Citations

#4,361 in Tokyo

#11,124 in Japan

Zephyr Corporation

Forward Citations = 138

4 inventors:

Kiyoshi Sato (2 out of 126 patents)

Ryosuke Ito (2 out of 18 patents)

Hideaki Tamura (2 out of 2 patents)

4. Katsushi Kawakami (2 out of 2 patents)

5. Hideki Nudeshima (4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zephyr Corporation. Retrieved from https://idiyas.com/company/zephyr

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]

4 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]