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The Kansai Electric Power Co., Inc.

USPTO Granted Patents = 195

CIPO Patents = 24

EPO Patents = 64

Trademarks = 2

Forward Citations = 2,424

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429 inventors (with patents filed for the assignee):

Masaki Iijima (45 out of 115 patents)

Yasuyuki Yagi (36 out of 38 patents)

Tomio Mimura (29 out of 34 patents)

4. Takuya Hirata (20 out of 69 patents)

5. Takashi Kamijo (20 out of 67 patents)

6. Hiroshi Tanaka (18 out of 177 patents)

7. Masahiko Tatsumi (17 out of 18 patents)

8. Yoshitaka Sugawara (17 out of 24 patents)

9. Shigeaki Mitsuoka (17 out of 34 patents)

10. Shigeru Shimojo (16 out of 19 patents)

11. Tatsuya Tsujiuchi (15 out of 63 patents)

12. Kouki Ogura (15 out of 16 patents)

13. Hiroto Nakagawa (15 out of 23 patents)

14. Tsuyoshi Oishi (14 out of 51 patents)

15. Hiromitsu Nagayasu (10 out of 46 patents)

Core Competencies:

Carbon Dioxide Recovery

Geothermal Heat Utilization

Composite Amine Absorbent

Ultrasonic Diagnosis

Reclaiming Apparatus

Axial Flow Compressor

Redox Flow Battery

Flue Gas Collection

Slag Monitoring Device

Absorbent Liquid

Condensing Apparatus

Ultrasound Imaging

195 patents: Sort by Forward Citations

1. 12403422 - COrecovery unit and COrecovery method (2025-09-02),

2. 12138584 - Composite amine absorbent, removal unit, and removal method (2024-11-12),

3. 11772041 - Composite amine absorbent, and device and method for removing CO2 or H2S, or both of CO2 and H2S (2023-10-03),

4. 11633692 - Absorbent liquid for CO2 and/or H2S, and apparatus and method using same (2023-04-25),

5. 11629889 - Geothermal heat utilization system and geothermal heat utilization method (2023-04-18),

6. 11612851 - Carbon dioxide recovery system and carbon dioxide recovery method (2023-03-28),

7. 10857502 - Absorbent liquid for COand/or HS, and apparatus and method using same (2020-12-08),

8. 10845129 - Geothermal heat utilization system and geothermal heat utilization method (2020-11-24),

9. 10835892 - COdesorption catalyst (2020-11-17),

10. 10456737 - Absorbing liquid, method for preparing absorbing liquid, and device and method for removing CO2 or H2S or both (2019-10-29),

11. 10137407 - [object Object] (2018-11-27),

12. 10000383 - [object Object] (2018-06-19),

13. 9914088 - [object Object] (2018-03-13),

14. 9907533 - Ultrasonic diagnosis apparatus and displaying method (2018-03-06),

15. 9662607 - [object Object] (2017-05-30),

The Kansai Electric Power Co., Inc. is a Japanese electric power company. It is the second-largest electric utility in Japan, serving 10 million customers in the Kansai region, including Osaka, Kyoto, and Kobe. Kansai Electric Power Co., Inc. operates various power plants, including nuclear, thermal, and hydroelectric power plants, to supply electricity to its customers. Aside from power generation, the company also provides energy-related services, thermal supply, and related products as part of its business endeavors.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

195 Patents

#76 in Osaka

#698 in Japan

#4,197 in the World

The Kansai Electric Power Co., Inc.

Forward Citations = 2,424

429 inventors:

Masaki Iijima (45 out of 115 patents)

Yasuyuki Yagi (36 out of 38 patents)

Tomio Mimura (29 out of 34 patents)

4. Takuya Hirata (20 out of 69 patents)

5. Takashi Kamijo (20 out of 67 patents)

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