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Hitachi Mitsubishi Hydro Corporation

USPTO Granted Patents = 13

EPO Patents = 14

Forward Citations = 27

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24 inventors (with patents filed for the assignee):

Akira Bando (7 out of 33 patents)

Masahiro Yoshida (4 out of 71 patents)

Takahiko Kikui (3 out of 3 patents)

4. Masakazu Ishikawa (2 out of 14 patents)

5. Kenta Watanabe (2 out of 5 patents)

6. Masaya Ichinose (2 out of 54 patents)

7. Yasuhiro Kiyofuji (2 out of 15 patents)

8. Tomomichi Ito (2 out of 18 patents)

9. Osamu Nagura (2 out of 9 patents)

10. Takeshi Kuwahara (1 out of 27 patents)

11. Takashi Oyake (1 out of 2 patents)

12. Yukio Hongawa (1 out of 1 patent)

13. Yukiyoshi Yanagisawa (1 out of 3 patents)

14. Koshu Hagiya (1 out of 1 patent)

15. Masayuki Okada (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 12355377 - Adjustable speed generator motor system with full power converter (2025-07-08),

2. 12341464 - Power generation device (2025-06-24),

3. 12289076 - Method of controlling power generation apparatus and pumped storage power generation apparatus (2025-04-29),

4. 12289063 - Modular multilevel power converter and variable speed generator-motor (2025-04-29),

5. 12237789 - Modular multilevel converter and modular multilevel converter system (2025-02-25),

6. 11942873 - Secondary magnetic excitation generator-motor device (2024-03-26),

7. 11898531 - Variable speed pumping systems (2024-02-13),

8. 11223310 - Variable speed generator/motor device (2022-01-11),

9. 10784808 - Variable speed generator-motor apparatus and variable speed generator-motor system (2020-09-22),

10. 10536104 - Variable speed generator-motor apparatus and variable speed generator-motor system (2020-01-14),

11. 10326393 - Variable-speed pumped storage power generation apparatus (2019-06-18),

12. 9494127 - Pumped storage power plant (2016-11-15),

13. 8421318 - Rotor of rotating electrical machine (2013-04-16),

Hitachi Mitsubishi Hydro Corporation is a leading provider of hydroelectric power, offering innovative solutions in design, construction, and operation of hydroelectric plants. With a strong focus on sustainability and environmental protection, the company aims to contribute to a greener future through clean energy generation.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

13 Patents

#1,452 in Tokyo

#3,660 in Japan

#43,712 in the World

Hitachi Mitsubishi Hydro Corporation

Forward Citations = 27

24 inventors:

Akira Bando (7 out of 33 patents)

Masahiro Yoshida (4 out of 71 patents)

Takahiko Kikui (3 out of 3 patents)

4. Masakazu Ishikawa (2 out of 14 patents)

5. Kenta Watanabe (2 out of 5 patents)

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