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Electric Power Development Co., Ltd.

USPTO Granted Patents = 44

% Expired Patents = 2.3

EPO Patents = 23

Trademarks = 1

Forward Citations = 196

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132 inventors (with patents filed for the assignee):

Yasuyuki Nakabayashi (9 out of 9 patents)

Toshihiko Yamada (8 out of 12 patents)

Terutoshi Uchida (7 out of 12 patents)

4. Yoshio Matsuura (7 out of 7 patents)

5. Takao Kamei (7 out of 8 patents)

6. Michio Kurihara (7 out of 7 patents)

7. Keiichi Komai (7 out of 10 patents)

8. Shuzo Watanabe (6 out of 10 patents)

9. Akira Nakamura (6 out of 6 patents)

10. Shuuhei Terushita (5 out of 5 patents)

11. Takeshi Wakabayashi (4 out of 5 patents)

12. Shoichi Takao (4 out of 6 patents)

13. Shuhei Tatsumi (4 out of 5 patents)

14. Yoshinori Koyama (3 out of 38 patents)

15. Kenji Kamei (3 out of 28 patents)

Core Competencies:

Wind Energy Generation

Oxyfuel Combustion

Coal Gasifier

Temperature Measurement

Slag Monitoring

Gas Circuit Breaker

Power Converter Control

Nitrogen Oxides Removal

Coal Processing

Slurry Production

Fluidized Bed Combustion

Wastewater Treatment

44 patents: Sort by Forward Citations

1. 11988196 - Wind energy generation system (2024-05-21),

2. 11946455 - Wind energy generation system (2024-04-02),

3. 9927117 - Fossil-fuel power plant and fossil-fuel power plant operation method (2018-03-27),

4. 9810425 - Pulverized coal burner for oxyfuel combustion boiler (2017-11-07),

5. 9631869 - Powder supply device and powder supply method (2017-04-25),

6. 9429315 - Method and apparatus of controlling oxygen supply in oxyfuel combustion boiler (2016-08-30),

7. 9243961 - In-furnace temperature measurement device (2016-01-26),

8. 9239164 - Slag monitoring device for coal gasifier and coal gasifier (2016-01-19),

9. 8997665 - Slag-melting burner apparatus (2015-04-07),

10. 8927285 - [object Object] (2015-01-06),

11. 8662884 - Method and apparatus of controlling oxygen supply for boiler (2014-03-04),

12. 8637784 - Method for improving residual stress in tubular body (2014-01-28),

13. 8601960 - Method and apparatus of controlling exhaust gas in oxyfuel combustion boiler (2013-12-10),

14. 8584604 - Method and apparatus for controlling combustion in oxygen fired boiler (2013-11-19),

15. 8550017 - Method and apparatus of controlling exhaust gas in oxyfuel combustion boiler (2013-10-08),

Company Overview

Electric Power Development Co., Ltd., headquartered in Tokyo, specializes in the development and operation of energy solutions, focusing on wind energy generation and fossil-fuel power plants. The company is engaged in advanced technologies such as oxyfuel combustion and pulverized coal burners, enhancing efficiency and reducing emissions in energy production. Additionally, it emphasizes innovative monitoring systems for temperature and slag, alongside carbon dioxide feeding and coal-water slurry technologies, contributing to sustainable energy practices.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

44 Patents

#866 in Tokyo

#1,864 in Japan

#15,756 in the World

Electric Power Development Co., Ltd.

Forward Citations = 196

132 inventors:

Yasuyuki Nakabayashi (9 out of 9 patents)

Toshihiko Yamada (8 out of 12 patents)

Terutoshi Uchida (7 out of 12 patents)

4. Yoshio Matsuura (7 out of 7 patents)

5. Takao Kamei (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Electric Power Development Co., Ltd.. Retrieved from https://idiyas.com/company/electric-power-development-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]

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