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Uacj Corporation

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USPTO Granted Patents = 193

% Expired Patents = 12.4

EPO Patents = 99

Trademarks = 5

Forward Citations = 153

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255 inventors (with patents filed for the assignee):

Tomoki Yamayoshi (28 out of 29 patents)

Kotaro Kitawaki (24 out of 25 patents)

Hideyuki Hatakeyama (18 out of 19 patents)

4. Yasunaga Itoh (14 out of 22 patents)

5. Akio Niikura (13 out of 19 patents)

6. Ryo Sakamoto (13 out of 25 patents)

7. Atsushi Fukumoto (13 out of 100 patents)

8. Junji Nunomura (12 out of 13 patents)

9. Makoto Yonemitsu (11 out of 13 patents)

10. Masakazu Seki (11 out of 11 patents)

11. Satoshi Suzuki (11 out of 14 patents)

12. Makoto Ando (10 out of 84 patents)

13. Naoki Yamashita (10 out of 24 patents)

14. Yutaka Yanagawa (10 out of 20 patents)

15. Tomohiko Furutani (10 out of 10 patents)

Core Competencies:

Aluminum Alloy

Brazing Sheet

Heat Exchanger

Magnetic Disk

Surface Treatment

Extruded Tube

Thermal Bonding

Coating Material

Electrolytic Aluminum

Superplastic Forming

Impact Resistant

Microstructure

193 patents: Sort by Forward Citations

1. 12768013 - Aluminum alloy sheet, method for manufacturing same, and heat exchanger (2026-10-20),

2. 12716117 - Aluminum alloy disc blank for magnetic disc and magnetic disc (2026-08-25),

3. 12629783 - Aluminum alloy brazing sheet (2026-05-19),

4. 12629736 - Method of manufacturing a brazing sheet (2026-05-19),

5. 12624471 - Aluminum member and manufacturing method thereof (2026-05-12),

6. 12590378 - Method and apparatus for producing aluminum material (2026-03-31),

7. 12573424 - Magnetic disk and substrate for magnetic disk (2026-03-10),

8. 12571121 - Surface-treated aluminum material and method for producing the same (2026-03-10),

9. 12555602 - Magnetic disk substrate and magnetic disk using magnetic disk substrate (2026-02-17),

10. 12552135 - Aluminum alloy clad material for heat exchanger (2026-02-17),

11. 12534781 - Method of producing aluminum alloy material having thermal bonding function in single layer (2026-01-27),

12. 12508676 - Aluminum alloy brazing sheet and method for producing same (2025-12-30),

13. 12466004 - Method of manufacturing a brazing sheet (2025-11-11),

14. 12454741 - Aluminum alloy extruded multi-hole tube for heat exchanger and method for manufacturing the same (2025-10-28),

15. 12440929 - Aluminum alloy brazing sheet and method for manufacturing the same (2025-10-14),

Company Overview

UACJ Corporation, headquartered in Tokyo, specializes in aluminum alloy technology, focusing on the development and manufacturing of a diverse range of aluminum products. The company is recognized for its expertise in areas such as brazing sheets, heat exchangers, and extruded tubes, catering to various industries including automotive and electronics. UACJ also emphasizes advancements in surface treatment and coating materials, positioning itself as a key player in the global aluminum market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

193 Patents

#361 in Tokyo

#722 in Japan

#4,368 in the World

Uacj Corporation

Forward Citations = 153

255 inventors:

Tomoki Yamayoshi (28 out of 29 patents)

Kotaro Kitawaki (24 out of 25 patents)

Hideyuki Hatakeyama (18 out of 19 patents)

4. Yasunaga Itoh (14 out of 22 patents)

5. Akio Niikura (13 out of 19 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Uacj Corporation. Retrieved from https://idiyas.com/company/uacj

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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