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Nippon Chemi-Con Corporation

USPTO Granted Patents = 176

% Expired Patents = 15.3

EPO Patents = 61

Trademarks = 5

Forward Citations = 671

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213 inventors (with patents filed for the assignee):

Kenji Tamamitsu (27 out of 27 patents)

Shuichi Ishimoto (25 out of 25 patents)

Yutaka Yokoyama (21 out of 68 patents)

4. Katsuhiko Naoi (20 out of 29 patents)

5. Wako Naoi (19 out of 19 patents)

6. Masashi Ozawa (17 out of 17 patents)

7. Fumihiko Shinozaki (16 out of 16 patents)

8. Kazuya Koseki (15 out of 16 patents)

9. Kenji Machida (15 out of 25 patents)

10. Kazuhiro Nagahara (14 out of 14 patents)

11. Satoshi Kubota (12 out of 19 patents)

12. Yoshihiro Minato (11 out of 11 patents)

13. Satoru Tsumeda (11 out of 11 patents)

14. Masao Sakakura (11 out of 11 patents)

15. Kazuma Okura (9 out of 9 patents)

Core Competencies:

Electrolytic Capacitor

Solid Capacitor

Hybrid Capacitor

Capacitor Manufacturing

Electrode Body

Conductive Carbon

Power Storage Device

Lifespan Estimation

Dielectric Oxide Film

Electrical Double Layer

Electrode Material

Capacitor Module

176 patents: Sort by Forward Citations

1. 12724222 - Camera module, and manufacturing method therefor (2026-09-01),

2. 12695035 - Capacitor having a cathode foil including a carbon layer and method for manufacturing same (2026-07-28),

3. 12683088 - Solid electrolytic capacitor and manufacturing method (2026-07-14),

4. 12592347 - Electrolytic capacitor including an enlarged surface layer and a dielectric oxide film formed on the enlarged surface layer (2026-03-31),

5. 12581175 - Camera module, control method therefor, and manufacturing method therefor (2026-03-17),

6. 12542247 - Electrical double layer capacitor (2026-02-03),

7. 12482609 - Electrolytic capacitor, negative electrode body and method for producing electrolytic capacitor (2025-11-25),

8. 12469648 - Electrolytic capacitor, negative electrode body, and method for manufacturing electrolytic capacitor (2025-11-11),

9. 12444546 - Electrolytic capacitor and method for producing electrolytic capacitor (2025-10-14),

10. 12437934 - Capacitor with negative electrode foil including carbon layer (2025-10-07),

11. 12400803 - Electrolytic capacitor (2025-08-26),

12. 12400801 - Electrolytic capacitor (2025-08-26),

13. 12400800 - Solid electrolytic capacitor and method for producing solid electrolytic capacitor (2025-08-26),

14. 12340954 - Electrode body, electrolytic capacitor provided with electrode body, and method for producing electrode body (2025-06-24),

15. 12266483 - Cathode and electrolytic capacitor (2025-04-01),

Company Overview

Nippon Chemi-Con Corporation, headquartered in Tokyo, specializes in the development and manufacturing of electrolytic capacitors, including solid and hybrid types. The company is recognized for its expertise in capacitor technology, focusing on innovations in electrode body design and conductive carbon materials. With a commitment to enhancing power storage devices, Nippon Chemi-Con plays a significant role in various industries, contributing to advancements in energy efficiency and lifespan estimation of capacitors.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

176 Patents

#391 in Tokyo

#770 in Japan

#4,731 in the World

Nippon Chemi-Con Corporation

Forward Citations = 671

213 inventors:

Kenji Tamamitsu (27 out of 27 patents)

Shuichi Ishimoto (25 out of 25 patents)

Yutaka Yokoyama (21 out of 68 patents)

4. Katsuhiko Naoi (20 out of 29 patents)

5. Wako Naoi (19 out of 19 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Chemi-Con Corporation. Retrieved from https://idiyas.com/company/nippon-chemi-con

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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