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Hiroshima, Japan

Primetals Technologies Japan, Ltd.

USPTO Granted Patents = 50

EPO Patents = 68

Trademarks = 2

Forward Citations = 29

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101 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. Hideaki Furumoto (4 out of 12 patents)

10. Takashi Yonekura (4 out of 6 patents)

11. Noriaki Tominaga (4 out of 4 patents)

12. Takehiko Saito (4 out of 4 patents)

13. Yasutsugu Yoshimura (4 out of 4 patents)

14. Keiichi Sato (4 out of 15 patents)

15. Takanori Nagai (3 out of 7 patents)

Core Competencies:

Hot Rolling Mills

Pickling Apparatus

Rolling Mill Control

Heat Treatment Facility

Edge Crack Detection

Laser Processing Device

Continuous Annealing Equipment

Metal Plate Joining

Friction Stir Welding

Hot Dip Galvanization

Cooling Apparatus

Cold Rolling Method

50 patents: Sort by Forward Citations

1. 12491550 - Hot rolling mills and hot rolling methods (2025-12-09),

2. 12434283 - Hot rolling mills and hot rolling methods (2025-10-07),

3. 12371800 - Pickling apparatus and pickling method (2025-07-29),

4. 12330198 - Rolling mills and rolling methods (2025-06-17),

5. 12318827 - Rolling mill, rolling mill control method, and thrust force supporting method in rolling mill (2025-06-03),

6. 12179244 - Control device for rolling mill apparatus, rolling mill facility, and operation method for rolling mill apparatus (2024-12-31),

7. 12139797 - Acid solution preparation device, acid solution supply apparatus, and pickling facility (2024-11-12),

8. 12121946 - Rolling mill and rolling mill adjustment method (2024-10-22),

9. 12103060 - Rolling mill and rolling method for metal plate (2024-10-01),

10. 12091757 - Method for pickling steel plate and pickling apparatus (2024-09-17),

11. 12061047 - Operation support apparatus and operation support method for heat-treatment furnace, and a heat-treatment facility and operation method therefor (2024-08-13),

12. 11814736 - Pickling facility and operation method of pickling facility (2023-11-14),

13. 11808720 - Edge crack detection device, rolling mill facility and edge crack detection method (2023-11-07),

14. 11597033 - Laser processing head, laser processing device, and method for adjusting laser processing head (2023-03-07),

15. 11478833 - Crossbow correction device, molten metal plating facility, and crossbow correction method (2022-10-25),

PRIMETALS TECHNOLOGIES JAPAN, LTD. is a leading engineering, plant-building and lifecycle partner for the metals industry. They offer a comprehensive range of technologies, products, and services along the entire value chain of iron and steel production. With their innovative solutions, expertise, and global network, they help their customers optimize their processes, increase efficiency, and enhance sustainability.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

50 Patents

#10 in Hiroshima, 729-3431

#1,675 in Japan

#13,592 in the World

Hiroshima, Japan

Primetals Technologies Japan, Ltd.

Forward Citations = 29

101 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)

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