EPO Patents = 4

Forward Citations = 0

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25 inventors (with patents filed for the assignee):

Itsuo Yuzurihara (2 out of 48 patents)

Hiroshi Kunitama (2 out of 14 patents)

Takuya Yoshida (2 out of 4 patents)

4. Yu Hosoyamada (1 out of 14 patents)

5. Tomohiro Yoneyama (1 out of 11 patents)

6. Shuji Nambu (1 out of 4 patents)

7. Satoshi Aikawa (1 out of 19 patents)

8. Tadaharu Ohno (1 out of 2 patents)

9. Kunihiro Muto (1 out of 2 patents)

10. Koichi Miyazaki (1 out of 7 patents)

11. Minoru Sano (1 out of 5 patents)

12. Masakazu Sonobe (1 out of 1 patent)

13. Shohei Kobayashi (1 out of 3 patents)

14. Naoki Hashimoto (1 out of 1 patent)

15. Tossaporn Srisooksai (1 out of 2 patents)

6 patents: Sort by Forward Citations

1. 12771003 - Nonreciprocal circuit element (2026-10-20),

2. 12726140 - RF band power supply device and pulse width modulation control method (2026-09-01),

3. 12567812 - High-frequency power supply device and output control method therefor (2026-03-03),

4. 12537721 - Learning model generation method, inference apparatus, and wireless train control system (2026-01-27),

5. 12534116 - Maintenance apparatus, maintenance system, and maintenance method (2026-01-27),

6. 12531515 - Driver device for class-d full bridge amplifier (2026-01-20),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#108 in Yokohama

#5,990 in Japan

Yokohama, Japan

Kyosan Electric Mfg. Co., Ltd.

Forward Citations = 0

25 inventors:

Itsuo Yuzurihara (2 out of 48 patents)

Hiroshi Kunitama (2 out of 14 patents)

Takuya Yoshida (2 out of 4 patents)

4. Yu Hosoyamada (1 out of 14 patents)

5. Tomohiro Yoneyama (1 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kyosan Electric Mfg. Co., Ltd.. Retrieved from https://idiyas.com/company/kyosan-electric-mfg

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]