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Hiroshima, Japan

Primetals Technologies Japan, Ltd.

USPTO Granted Patents = 52

% Expired Patents = 17.3

EPO Patents = 71

Trademarks = 2

Forward Citations = 32

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102 inventors (with patents filed for the assignee):

Masashi Yoshikawa (9 out of 30 patents)

Shinya Kanemori (8 out of 8 patents)

Ryusuke Nakatsuka (6 out of 6 patents)

4. Kosei Tsuji (6 out of 6 patents)

5. Kenji Horii (6 out of 20 patents)

6. Akira Sako (5 out of 7 patents)

7. Mitsuru Onose (5 out of 6 patents)

8. Shinichi Kaga (5 out of 6 patents)

9. Yoichi Matsui (5 out of 5 patents)

10. Yuta Odawara (5 out of 5 patents)

11. Hideaki Furumoto (4 out of 12 patents)

12. Takashi Yonekura (4 out of 6 patents)

13. Noriaki Tominaga (4 out of 4 patents)

14. Takehiko Saito (4 out of 4 patents)

15. Yasutsugu Yoshimura (4 out of 4 patents)

Core Competencies:

Rolling Mill

Hot Rolling

Pickling Apparatus

Edge Crack Detection

Heat Treatment

Metal Plate

Continuous Annealing

Cooling Apparatus

Welding Method

Metal Plating

Cold Rolling

Iron Production

52 patents: Sort by Forward Citations

1. 12686044 - Wiping apparatus and rolling facility (2026-07-21),

2. 12629737 - Rolling mill facility (2026-05-19),

3. 12491550 - Hot rolling mills and hot rolling methods (2025-12-09),

4. 12434283 - Hot rolling mills and hot rolling methods (2025-10-07),

5. 12371800 - Pickling apparatus and pickling method (2025-07-29),

6. 12330198 - Rolling mills and rolling methods (2025-06-17),

7. 12318827 - Rolling mill, rolling mill control method, and thrust force supporting method in rolling mill (2025-06-03),

8. 12179244 - Control device for rolling mill apparatus, rolling mill facility, and operation method for rolling mill apparatus (2024-12-31),

9. 12139797 - Acid solution preparation device, acid solution supply apparatus, and pickling facility (2024-11-12),

10. 12121946 - Rolling mill and rolling mill adjustment method (2024-10-22),

11. 12103060 - Rolling mill and rolling method for metal plate (2024-10-01),

12. 12091757 - Method for pickling steel plate and pickling apparatus (2024-09-17),

13. 12061047 - Operation support apparatus and operation support method for heat-treatment furnace, and a heat-treatment facility and operation method therefor (2024-08-13),

14. 11814736 - Pickling facility and operation method of pickling facility (2023-11-14),

15. 11808720 - Edge crack detection device, rolling mill facility and edge crack detection method (2023-11-07),

Company Overview

Primetals Technologies Japan, Ltd. is a prominent player in the field of rolling mill technology, specializing in the development and manufacturing of advanced solutions for the metal processing industry. The company focuses on key technological areas such as hot rolling, pickling apparatus, edge crack detection, heat treatment, and continuous annealing. With a strong emphasis on innovation, Primetals Technologies aims to enhance efficiency and quality in metal plate production, serving clients globally from its headquarters in Hiroshima, Japan.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

52 Patents

#11 in Hiroshima, 729-3431

#1,670 in Japan

#13,555 in the World

Hiroshima, Japan

Primetals Technologies Japan, Ltd.

Forward Citations = 32

102 inventors:

Masashi Yoshikawa (9 out of 30 patents)

Shinya Kanemori (8 out of 8 patents)

Ryusuke Nakatsuka (6 out of 6 patents)

4. Kosei Tsuji (6 out of 6 patents)

5. Kenji Horii (6 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Primetals Technologies Japan, Ltd.. Retrieved from https://idiyas.com/company/primetals-technologies-japan

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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