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Mitsui High-Tec Incorporated

USPTO Granted Patents = 192

% Expired Patents = 14.1

EPO Patents = 39

Trademarks = 2

Forward Citations = 1,125

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182 inventors (with patents filed for the assignee):

Yusuke Hasuo (18 out of 21 patents)

Katsumi Amano (18 out of 19 patents)

Takashi Fukumoto (16 out of 17 patents)

4. Akira Nagai (15 out of 17 patents)

5. Jin Oda (13 out of 14 patents)

6. Hirotoshi Mabu (13 out of 15 patents)

7. Go Kato (12 out of 18 patents)

8. Satoshi Matsubayashi (12 out of 15 patents)

9. Masahiro Izumi (12 out of 12 patents)

10. Iwao Myojin (9 out of 14 patents)

11. Akihiro Hashimoto (9 out of 11 patents)

12. Kazutoshi Ueda (8 out of 8 patents)

13. Katsufusa Fujita (8 out of 8 patents)

14. Hirokazu Arakawa (7 out of 7 patents)

15. Takahiro Ishibashi (7 out of 7 patents)

Core Competencies:

Laminated Iron Core

Manufacturing Method

Production Device

Core Structure

Rotary Electric Machine

Heat-Treatment Apparatus

Electrode Connection Structure

Resin Sealing

Segregated Laminated Core

Metal Laminate

Stacked Core

Armature

192 patents: Sort by Forward Citations

1. 12702020 - Metal component including phosphorous-containing nickel layer (2026-08-04),

2. 12628664 - Metal component (2026-05-12),

3. 12627204 - Laminated iron core and laminated iron core manufacturing method (2026-05-12),

4. 12614956 - Manufacturing method for laminated iron core and laminated iron core (2026-04-28),

5. 12525857 - Laminated iron core, manufacturing method of laminated iron core, and progressive die machine (2026-01-13),

6. 12483077 - Split-type laminated iron core and method for manufacturing split-type laminated iron core (2025-11-25),

7. 12476523 - Laminated iron core production device, laminated iron core, and laminated iron core production method (2025-11-18),

8. 12328040 - Method of producing iron core product and apparatus for producing iron core product (2025-06-10),

9. 12278528 - Method for manufacturing laminated body (2025-04-14),

10. 12248829 - Method of manufacturing metal product and metal product (2025-03-11),

11. 12027927 - Core part manufacturing method and core part manufacturing apparatus of rotary electric machine (2024-07-02),

12. 11969923 - Method for manufacturing iron core product (2024-04-30),

13. 11865739 - Method of manufacturing a core product (2024-01-09),

14. 11799366 - Manufacturing method of laminated iron core (2023-10-24),

15. 11770056 - Manufacturing method of laminated iron core (2023-09-26),

Mitsui High-Tec Incorporated, headquartered in Fukuoka, Japan, specializes in the development and manufacturing of laminated iron cores. The company focuses on advanced technologies related to core structures and production methods, catering to industries that require high-performance rotary electric machines. Their expertise extends to heat-treatment apparatus and innovative electrode connection structures, ensuring reliability and efficiency in electrical applications. Mitsui High-Tec is committed to enhancing manufacturing processes and product quality in the field of electrical engineering.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Mitsui High-Tec Incorporated

192 Patents

#2 in Fukuoka

#726 in Japan

#4,382 in the World

Mitsui High-Tec Incorporated

Forward Citations = 1,125

182 inventors:

Yusuke Hasuo (18 out of 21 patents)

Katsumi Amano (18 out of 19 patents)

Takashi Fukumoto (16 out of 17 patents)

4. Akira Nagai (15 out of 17 patents)

5. Jin Oda (13 out of 14 patents)

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