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Shijonawate, Japan

Sun Electronic Industries Corp.

USPTO Granted Patents = 19

% Expired Patents = 21.1

EPO Patents = 3

Trademarks = 2

Forward Citations = 121

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14 inventors (with patents filed for the assignee):

Masakazu Hosogi (11 out of 11 patents)

Takashi Takezawa (7 out of 7 patents)

Tadahito Ito (7 out of 7 patents)

4. Yutaka Taketani (6 out of 10 patents)

5. Kenji Kakuma (6 out of 8 patents)

6. Makoto Sakamaki (5 out of 5 patents)

7. Yoshiaki Hasaba (5 out of 5 patents)

8. Hirokazu Nishikori (5 out of 5 patents)

9. Takahisa Adachi (1 out of 1 patent)

10. Hajime Kimachi (1 out of 1 patent)

11. Yuya Nagaike (1 out of 1 patent)

12. Hiroyuki Okuda (1 out of 22 patents)

13. Junichi Yamashita (1 out of 1 patent)

14. Koso Ishihara (1 out of 4 patents)

19 patents: Sort by Forward Citations

1. 12573563 - Electrolytic capacitor with electrolyte and hydrophilic compound containing liquid (2026-03-10),

2. 12387882 - Electrolytic capacitor (2025-08-12),

3. 12283437 - Electrolytic capacitor (2025-04-21),

4. 12198866 - Solid electrolytic capacitor with water-soluble first polymer and water-dispersible second polymer, and manufacturing method thereof (2025-01-14),

5. 12027323 - Capacitor having a sealing member (2024-07-02),

6. 11990286 - Capacitor (2024-05-21),

7. 11915887 - Capacitor containing a deterioration preventing agent (2024-02-27),

8. 11545306 - Electrolytic capacitor (2023-01-03),

9. 11380493 - Electrolytic capacitor (2022-07-05),

10. 8873221 - Solid electrolytic capacitor (2014-10-28),

11. 8462484 - Method for manufacturing electrolytic capacitor with electrically conductive solid layer and electrolytic capacitor with electrically conductive solid layer (2013-06-11),

12. 8081420 - Solid electrolytic capacitor and method for manufacture thereof (2011-12-20),

13. 7872858 - Method for manufacturing electrolytic capacitor and electrolytic capacitor (2011-01-18),

14. 7859829 - Electrolytic capacitor and method of producing the same (2010-12-28),

15. 7497879 - Method of manufacturing electrolytic capacitor and electrolytic capacitor (2009-03-03),

Sun Electronic Industries Corp., based in Shijonawate, Japan, specializes in the development and manufacturing of advanced electronic components and systems. The company focuses on delivering innovative solutions across various sectors, including telecommunications, consumer electronics, and industrial applications. With a commitment to quality and technological advancement, Sun Electronic Industries plays a significant role in enhancing the functionality and efficiency of electronic devices, contributing to the evolving landscape of modern technology.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

19 Patents

#1 in Shijonawate

#3,033 in Japan

#32,592 in the World

Shijonawate, Japan

Sun Electronic Industries Corp.

Forward Citations = 121

14 inventors:

Masakazu Hosogi (11 out of 11 patents)

Takashi Takezawa (7 out of 7 patents)

Tadahito Ito (7 out of 7 patents)

4. Yutaka Taketani (6 out of 10 patents)

5. Kenji Kakuma (6 out of 8 patents)

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