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Fdk Corporation

USPTO Granted Patents = 207

CIPO Patents = 1

EPO Patents = 68

Trademarks = 5

Forward Citations = 760

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325 inventors (with patents filed for the assignee):

Fumiaki Nakao (16 out of 32 patents)

Mikio Kitaoka (15 out of 16 patents)

Yukihiro Yamamoto (10 out of 16 patents)

4. Hirotaka Kawai (10 out of 23 patents)

5. Hiromitsu Umezawa (10 out of 11 patents)

6. Masaru Kihara (9 out of 32 patents)

7. Norio Fukui (9 out of 9 patents)

8. Tetsuya Suzuki (9 out of 50 patents)

9. Akira Saguchi (9 out of 13 patents)

10. Daisuke Hirata (8 out of 13 patents)

11. Yasunari Mizoguchi (8 out of 8 patents)

12. Jun Ishida (8 out of 25 patents)

13. Naoaki Nishimura (8 out of 10 patents)

14. Katsuo Yamada (8 out of 8 patents)

15. Shigekazu Yasuoka (8 out of 20 patents)

Core Competencies:

Alkaline Secondary Battery

Nickel Electrode

Power Supply System

Backup Power Supply

All-Solid-State Battery

Charging Device

Air Electrode Catalyst

Battery Module

Hydrogen Absorbing Alloy

Battery Packaging Container

Negative Electrode

Battery Charger

207 patents: Sort by Forward Citations

1. 12506187 - Battery bank unit, remaining charge time calculation method, and non transitory recording medium storing computer readable program storing therein for calculating remaining charge time of battery bank unit (2025-12-23),

2. 12482820 - Negative electrode for alkaline storage battery and alkaline storage battery including the negative electrode (2025-11-25),

3. 12482808 - Nickel electrode for alkaline secondary battery and alkaline secondary battery including nickel electrode (2025-11-25),

4. 12424685 - Laminate-type power storage element (2025-09-23),

5. 12401067 - Alkaline secondary battery (2025-08-26),

6. 12381262 - Battery pack (2025-08-05),

7. 12374884 - Backup power supply device (2025-07-29),

8. 12322962 - Power supply system and electricity storage device (2025-06-03),

9. 12300809 - Nickel metal hydride secondary battery (2025-05-13),

10. 12272989 - Backup power supply apparatus and backup power supply apparatus controlling method (2025-04-08),

11. 12244027 - Sealing gasket and tubular battery incorporating sealing gasket (2025-03-04),

12. 12218340 - Alkaline battery and method of producing negative electrode gel for alkaline battery (2025-02-04),

13. 12191526 - Battery and manufacturing method thereof (2025-01-07),

14. 12183894 - Electrode for alkaline secondary battery and alkaline secondary battery (2024-12-31),

15. 12132165 - All-solid-state battery (2024-10-29),

FDK Corporation is a global leader in the development and manufacture of high-quality electronic components and energy storage devices. With a wide range of products including batteries, magnets, and capacitors, FDK Corporation serves various industries such as automotive, telecommunications, and healthcare. With a strong focus on innovation and customer satisfaction, FDK Corporation continuously strives to deliver cutting-edge solutions that meet the ever-evolving needs of the market.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

207 Patents

#307 in Tokyo

#676 in Japan

#3,994 in the World

Fdk Corporation

Forward Citations = 760

325 inventors:

Fumiaki Nakao (16 out of 32 patents)

Mikio Kitaoka (15 out of 16 patents)

Yukihiro Yamamoto (10 out of 16 patents)

4. Hirotaka Kawai (10 out of 23 patents)

5. Hiromitsu Umezawa (10 out of 11 patents)

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