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For the Inventor, By the Inventor

Fujisawa, Japan

De Nora Permelec Ltd


USPTO Granted Patents = 58

% Expired Patents = 1.7



Trademarks = 1

Forward Citations = 349

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82 inventors (with patents filed for the assignee):

goldMedal Akiyoshi Manabe (13 out of 18 patents)

silverMedal Akihiro Kato (13 out of 13 patents)

bronzeMedal Yoshinori Nishiki (13 out of 86 patents)

4.  Shigenori Mitsushima (11 out of 16 patents)

5.  Awaludin Zaenal (7 out of 7 patents)

6.  Carlo Traini (7 out of 14 patents)

7.  Yoshiyuki Kuroda (5 out of 6 patents)

8.  Giuseppe Faita (5 out of 21 patents)

9.  Hideo Otsu (4 out of 4 patents)

10.  Yasutomo Takakuwa (4 out of 4 patents)

11.  Ikuo Nagashima (4 out of 7 patents)

12.  Akihiro Madono (4 out of 4 patents)

13.  Osamu Arimoto (4 out of 4 patents)

14.  Masahiro Ohara (4 out of 12 patents)

15.  Takaaki Nakai (4 out of 5 patents)


Core Competencies:
Electrolysis
Alkaline Water Electrolysis
Organic Hydride
Electrode Manufacturing
Electrochemical Cell
Electrolyzer
Wastewater Treatment
Gas Purification
Electrolytic Apparatus
Chlor-Alkali Process
Anode
Cathode

58 patents:

1. 12680185 - Organic hydride production device, water removal device, and water removal method (2026-07-14),
2. 12612706 - Anode for alkaline water electrolysis (2026-04-28),
3. 12600649 - Apparatus for producing acidic aqueous solution and method for producing acidic aqueous solution (2026-04-14),
4. 12467901 - Accelerated evaluation method for anode (2025-11-11),
5. 12234563 - Method for manufacturing electrode, and electrode (2025-02-25),
6. 12227860 - Method for purifying gas formed by electrolysis, and electrolytic apparatus (2025-02-18),
7. 12209321 - Method and device for manufacturing sodium hypochlorite solution (2025-01-28),
8. 11982007 - Gasket for electrolysis vessels, and electrolysis vessel using same (2024-05-14),
9. 11965256 - Anode for alkaline water electrolysis and method for producing same (2024-04-23),
10. 11866834 - Electrolysis electrode and method for manufacturing same (2024-01-09),
11. 11794147 - Wastewater treatment method and wastewater treatment apparatus (2023-10-24),
12. 11718922 - Laminated structure including electrodes (2023-08-08),
13. 11692276 - Alkaline water electrolysis method, and anode for alkaline water electrolysis (2023-07-04),
14. 11519082 - Organic hydride production apparatus and method for producing organic hydride (2022-12-06),
15. 11479868 - Electrolytic device (2022-10-25),
Company Overview
De Nora Permelec Ltd, based in Fujisawa, Japan, specializes in advanced electrolysis technology, focusing on the development and manufacturing of innovative solutions for various applications. The company is recognized for its expertise in alkaline water electrolysis, organic hydride systems, and electrode manufacturing, contributing significantly to the fields of electrochemical cells and electrolyzers. Additionally, De Nora is involved in wastewater treatment and gas purification technologies, addressing critical environmental challenges through its cutting-edge solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

58 Patents

#4 in Fujisawa

#1,572 in Japan

#12,380 in the World

Fujisawa, JP
Fujisawa, Japan

De Nora Permelec Ltd

Forward Citations = 349

82 inventors:

goldMedal Akiyoshi Manabe (13 out of 18 patents)

silverMedal Akihiro Kato (13 out of 13 patents)

bronzeMedal Yoshinori Nishiki (13 out of 86 patents)

4.  Shigenori Mitsushima (11 out of 16 patents)

5.  Awaludin Zaenal (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: De Nora Permelec Ltd. Retrieved from https://idiyas.com/company/de-nora-permelec

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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