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N.e. Chemcat Corporation

USPTO Granted Patents = 90

% Expired Patents = 14.4

EPO Patents = 39

Forward Citations = 681

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129 inventors (with patents filed for the assignee):

Makoto Nagata (19 out of 23 patents)

Takashi Itoh (15 out of 17 patents)

Tomoteru Mizusaki (14 out of 14 patents)

4. Kiyotaka Nagamori (12 out of 12 patents)

5. Yasuhiro Seki (11 out of 12 patents)

6. Yukio Takagi (10 out of 12 patents)

7. Hiroshi Igarashi (9 out of 145 patents)

8. Yasuharu Kanno (9 out of 9 patents)

9. Yoko Nakamura (9 out of 22 patents)

10. Yasuyuki Banno (8 out of 9 patents)

11. Yukio Kosaki (7 out of 7 patents)

12. Toshinori Okajima (6 out of 6 patents)

13. Takashi Hihara (6 out of 6 patents)

14. Takuya Tsubaki (5 out of 5 patents)

15. Jaya L Mohanan (4 out of 18 patents)

Core Competencies:

Electrode Catalyst

Exhaust Gas Purification

Hydrogenation Catalyst

Fuel Cell Stack

Selective Catalytic Reduction

Organometallic Complex

Zeolite Catalyst

Gas Diffusion Electrode

Ammonia Oxidation

Metal Nanoparticles

Honeycomb Structure

NOx Reduction

90 patents: Sort by Forward Citations

1. 12770889 - Electrode catalyst production system and production method (2026-10-20),

2. 12763341 - Catalyst for electrodes, composition for forming gas diffusion electrode, gas diffusion electrode, membrane electrode assembly, and fuel cell stack (2026-10-13),

3. 12676319 - Catalyst for electrode, composition for forming gas diffusion electrode, gas diffusion electrode, membrane-electrode junction, and fuel cell stack (2026-07-07),

4. 12374700 - Electrode catalyst, composition for forming gas diffusion electrode, gas diffusion electrode, membrane electrode assembly, and fuel cell stack (2025-07-29),

5. 12319578 - Catalyst structure, fuel reforming method, and fuel reforming system (2025-06-03),

6. 12239961 - Hydrogenation reaction catalyst used to hydrogenate amide compound and method for producing amine compound using same (2025-03-04),

7. 12187691 - Hydrogenation catalyst used in amide compound hydrogenation and method for producing amine compound using same (2025-01-07),

8. 12110296 - Compound, and method for producing the same (2024-10-08),

9. 12017208 - Cross-coupling reaction catalyst (2024-06-25),

10. 11724249 - Cu—P co-supported zeolite, and selective catalytic reduction catalyst and catalyst for exhaust gas using same (2023-08-15),

11. 11686231 - LNT layered catalyst for lean burn gasoline engine and exhaust gas purification apparatus using the same (2023-06-27),

12. 11484864 - Exhaust gas-purifying three-way catalyst and method for producing same, and integral structure type exhaust gas-purifying catalyst (2022-11-01),

13. 11376568 - Exhaust gas-purifying three-way catalyst (2022-07-05),

14. 11351524 - Zeolite with rare earth element-substituted framework and method for producing same, and NOx adsorber, selective catalytic reduction catalyst and automobile exhaust gas catalyst comprising same (2022-06-07),

15. 11305270 - Honeycomb structure, honeycomb structure type catalyst and production methods therefor (2022-04-19),

Company Overview

N.e. Chemcat Corporation, based in Tokyo, specializes in advanced catalytic technologies that play a crucial role in various industrial applications. The company focuses on the development and manufacturing of innovative catalysts, including electrode catalysts for fuel cells, hydrogenation catalysts, and zeolite catalysts. Their expertise extends to exhaust gas purification and selective catalytic reduction, contributing to cleaner energy solutions and environmental sustainability. N.e. Chemcat is committed to advancing catalytic science to meet the evolving needs of the energy sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

90 Patents

#585 in Tokyo

#1,201 in Japan

#8,535 in the World

N.e. Chemcat Corporation

Forward Citations = 681

129 inventors:

Makoto Nagata (19 out of 23 patents)

Takashi Itoh (15 out of 17 patents)

Tomoteru Mizusaki (14 out of 14 patents)

4. Kiyotaka Nagamori (12 out of 12 patents)

5. Yasuhiro Seki (11 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: N.e. Chemcat Corporation. Retrieved from https://idiyas.com/company/n-e-chemcat

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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