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Hitachi Metals, Ltd.

USPTO Granted Patents = 2,333

CIPO Patents = 41

EPO Patents = 574

Trademarks = 40

Forward Citations = 13,187

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2,323 inventors (with patents filed for the assignee):

Hirotaka Eshima (49 out of 62 patents)

Takahiro Futatsumori (46 out of 50 patents)

Masumi Asanae (42 out of 42 patents)

4. Yoshihito Yoshizawa (41 out of 42 patents)

5. Yoshikazu Hayakawa (39 out of 49 patents)

6. Takahiro Sugiyama (39 out of 62 patents)

7. Keitaro Yamashita (39 out of 48 patents)

8. Detian Huang (36 out of 54 patents)

9. Yoshinori Sunaga (33 out of 66 patents)

10. Alexei V Smirnov (32 out of 35 patents)

11. Shunji Okazaki (31 out of 31 patents)

12. Futoshi Kuniyoshi (31 out of 37 patents)

13. Shigeru Kemmochi (31 out of 32 patents)

14. Hiromitsu Kuroda (28 out of 46 patents)

15. Tomoyuki Murayama (28 out of 28 patents)

2,333 patents: Sort by Forward Citations

1. 12176315 - Electrical connection member, electrical connection structure, and method for manufacturing electrical connection member (2024-12-24),

2. 11932921 - Alloy composition, method for producing alloy composition, and die (2024-03-19),

3. 11895776 - Flexible printed wiring board, joined body, pressure sensor and mass flow controller (2024-02-06),

4. 11664136 - Composite cable and composite harness (2023-05-30),

5. 11655912 - Bellows diaphragm assembly (2023-05-23),

6. 11646412 - Cathode active material used for lithium ion secondary battery and lithium ion secondary battery (2023-05-09),

7. 11643711 - Laminate shaped article, method for manufacturing the same, and metal powder for laminate shaping (2023-05-09),

8. 11636974 - Wound magnetic core manufacturing method and wound magnetic core (2023-04-25),

9. 11632008 - Arrangement structure of wiring member for rotating electrical machine (2023-04-18),

10. 11630163 - Multi-core cable testing device and method for testing the multi-core cable (2023-04-18),

11. 11619750 - Scintillator structure and manufacturing method thereof (2023-04-04),

12. 11615926 - Method and device for producing pressure sensitive sensor (2023-03-28),

13. 11613799 - Fe-based amorphous alloy ribbon for Fe-based nanocrystalline alloy, and method for manufacturing the same (2023-03-28),

14. 11613796 - Cemented carbide and composite cemented carbide roll for rolling (2023-03-28),

15. 11613101 - Magnetic material, laminated magnetic material, laminated packet, and laminated core using magnetic material, and magnetic material producing method (2023-03-28),

Hitachi Metals, Ltd. is a global manufacturing company headquartered in Tokyo, Japan. With over a century of experience, Hitachi Metals specializes in the production of advanced materials, including steel, magnetic materials, functional components, and more. The company serves various industries, such as automotive, electronics, infrastructure, and energy. Committed to innovation, Hitachi Metals aims to contribute to society through its cutting-edge solutions and technologies.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

2,333 Patents

#49 in Tokyo

#103 in Japan

#415 in the World

Hitachi Metals, Ltd.

Forward Citations = 13,187

2,323 inventors:

Hirotaka Eshima (49 out of 62 patents)

Takahiro Futatsumori (46 out of 50 patents)

Masumi Asanae (42 out of 42 patents)

4. Yoshihito Yoshizawa (41 out of 42 patents)

5. Yoshikazu Hayakawa (39 out of 49 patents)

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