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Nagase Co., Ltd.

USPTO Granted Patents = 68

% Expired Patents = 17.6

CIPO Patents = 2

EPO Patents = 9

Trademarks = 10

Forward Citations = 211

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118 inventors (with patents filed for the assignee):

Keiji Maruoka (10 out of 12 patents)

Shu Ogawa (8 out of 14 patents)

Toshimoto Nakagawa (7 out of 9 patents)

4. Kunio Kosaka (6 out of 7 patents)

5. Jun Matsumoto (5 out of 170 patents)

6. Kenichiro Yamamoto (5 out of 6 patents)

7. Toshitsugu Miyazaki (5 out of 5 patents)

8. Makoto Kikukawa (5 out of 7 patents)

9. Yukifumi Nishimoto (4 out of 4 patents)

10. Keisuke Matsuyama (3 out of 27 patents)

11. Shogo Yamamoto (3 out of 4 patents)

12. Toru Inoue (3 out of 3 patents)

13. Satoru Morita (3 out of 5 patents)

14. Kouzo Tsukada (3 out of 3 patents)

15. Keiichi Murakami (3 out of 5 patents)

Core Competencies:

Organic EL Display

Amino Acid Production

Peptide Purification

Electronic Devices

Carnosic Acid Derivatives

Ergothioneine

Semiconductor Devices

Water-Based Resist

Optically Active Compounds

Dye-Printed Material

Molded Resin Article

68 patents: Sort by Forward Citations

1. 12454678 - Muscle differentiation-promoting actions of ergothioneine, ascorbic acid 2-glucoside, ascorbic acid, and combination thereof (2025-10-28),

2. 12401529 - Electronic device and information processing system (2025-08-26),

3. 12357614 - L-ergothioneine-containing composition (2025-07-15),

4. 12305208 - Method for producing sedoheptulose (2025-05-20),

5. 12249593 - Electronic device (2025-03-11),

6. 11791311 - Electronic device (2023-10-17),

7. 11781165 - Method for producing sedoheptulose (2023-10-10),

8. 11738304 - Exhaust gas purification system (2023-08-29),

9. 11535647 - Peptide purification method using sulfonate compound (2022-12-27),

10. 11472834 - Production method for metal-encapsulated cage-like protein (2022-10-18),

11. 11367627 - Methods for manufacturing semiconductor device and wiring structure (2022-06-21),

12. 11098330 - Method for producing ergothioneine (2021-08-24),

13. 10840109 - Terminal, molded product for power module provided with terminal, and method of manufacturing molded product for power module provided with terminal (2020-11-17),

14. 10696853 - Coating fluid composition, method for forming coating film, process for producing coating fluid composition, device for producing coating fluid composition, and composition for preparing coating fluid composition containing carbon dioxide (2020-06-30),

15. 10632881 - Cushion structure, cushion structure component and cushion structure manufacturing method (2020-04-28),

Company Overview

Nagase Co., Ltd., headquartered in Osaka, Japan, specializes in organic chemistry, focusing on the development and production of advanced materials and technologies. The company is recognized for its innovations in organic EL displays, amino acid production, and peptide purification, catering to various industries including electronics and pharmaceuticals. Nagase also explores applications in semiconductor devices and water-based resist technologies, positioning itself as a key player in the organic chemistry landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

68 Patents

#154 in Osaka

#1,431 in Japan

#10,894 in the World

Nagase Co., Ltd.

Forward Citations = 211

118 inventors:

Keiji Maruoka (10 out of 12 patents)

Shu Ogawa (8 out of 14 patents)

Toshimoto Nakagawa (7 out of 9 patents)

4. Kunio Kosaka (6 out of 7 patents)

5. Jun Matsumoto (5 out of 170 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nagase Co., Ltd.. Retrieved from https://idiyas.com/company/nagase-company

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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