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Kanagawa, Japan

Elna Co., Ltd.

USPTO Granted Patents = 19

EPO Patents = 3

Forward Citations = 349

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28 inventors (with patents filed for the assignee):

Takeshi Morimoto (12 out of 75 patents)

Kazuya Hiratsuka (6 out of 42 patents)

Yasuhiro Sanada (4 out of 12 patents)

4. Naoto Iwano (4 out of 4 patents)

5. Yoshiki Hamatani (4 out of 7 patents)

6. Eiji Endoh (3 out of 26 patents)

7. Kaori Matsumura (3 out of 3 patents)

8. Naozumi Kimura (3 out of 3 patents)

9. Toshiya Matsubara (3 out of 18 patents)

10. Hiroshi Yanaka (2 out of 2 patents)

11. Hikaru Santsuka (2 out of 2 patents)

12. Hidekazu Mizushima (2 out of 2 patents)

13. Hiroshi Aruga (2 out of 54 patents)

14. Hidemi Yamada (2 out of 8 patents)

15. Michio Okamura (2 out of 31 patents)

19 patents: Sort by Forward Citations

1. 12512261 - Surface-mount capacitor (2025-12-30),

2. 9842703 - Aluminum electrolytic capacitor and rubber seal for same (2017-12-12),

3. 9496091 - Aluminum electrolytic capacitor and rubber seal for same (2016-11-15),

4. D418812 - Voltage stabilizer (2000-01-11),

5. 5942885 - Power compensating device for battery (1999-08-24),

6. 5795680 - Non-aqueous electrolyte type secondary battery (1998-08-18),

7. 5604426 - Electric apparatus with a power supply including an electric double (1997-02-18),

8. 5545933 - Electric power storage apparatus (1996-08-13),

9. 5194127 - Method for etching an aluminum foil for an electrolytic capacitor (1993-03-16),

10. 5143587 - Method for etching an aluminum foil for an electrolytic capacitor (1992-09-01),

11. 4862328 - Electric double layer capacitor (1989-08-29),

12. 4858078 - Solid electrolytic capacitor (1989-08-15),

13. 4831499 - Electrolytic capacitor (1989-05-16),

14. 4757424 - Electric double layer capacitor (1988-07-12),

15. 4747021 - Electrolytic capacitor (1988-05-24),

Elna Co., Ltd. is a leading manufacturer of sewing machines and industrial equipment. With over 80 years of experience, Elna is known for its innovative technology and reliable products. The company specializes in creating high-quality sewing machines for both home and professional use, as well as industrial equipment for various industries.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

19 Patents

#95 in Kanagawa

#2,975 in Japan

#31,713 in the World

Kanagawa, Japan

Elna Co., Ltd.

Forward Citations = 349

28 inventors:

Takeshi Morimoto (12 out of 75 patents)

Kazuya Hiratsuka (6 out of 42 patents)

Yasuhiro Sanada (4 out of 12 patents)

4. Naoto Iwano (4 out of 4 patents)

5. Yoshiki Hamatani (4 out of 7 patents)

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