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For the Inventor, By the Inventor

Tokyo, Japan

Nippon Steel Corporation


USPTO Granted Patents = 3,548



Trademarks = 90

Forward Citations = 21,922

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6,827 inventors (with patents filed for the assignee):

goldMedal Kazutoshi Takeda (75 out of 83 patents)

silverMedal Yoshiyuki Ushigami (61 out of 72 patents)

bronzeMedal Yoshiaki Nakazawa (59 out of 92 patents)

4.  Hiroyasu Fujii (50 out of 52 patents)

5.  Hiroyuki Kawata (48 out of 68 patents)

6.  Kenichiro Otsuka (39 out of 54 patents)

7.  Masafumi Azuma (39 out of 54 patents)

8.  Shinsuke Takatani (38 out of 38 patents)

9.  Shuichi Yamazaki (37 out of 51 patents)

10.  Yasuto Goto (36 out of 40 patents)

11.  Takuya Mitsunobu (35 out of 35 patents)

12.  Yuri Toda (34 out of 41 patents)

13.  Riki Okamoto (33 out of 55 patents)

14.  Akihiro Uenishi (33 out of 46 patents)

15.  Takehiro Takahashi (33 out of 49 patents)


Core Competencies:
Steel Sheet
Non-Oriented Electrical Steel Sheet
Hot-Rolled Steel Sheet
Plated Steel Sheet
Welding Monitoring Apparatus
Grain-Oriented Electrical Steel Sheet
Rotary Electric Machine
Cold-Rolled Steel Sheet
Surface-Treated Steel Sheet
Hearth Roll
Oil-Well Metal Pipe
Hot Stamped Member

3,548 patents:

1. 12494533 - Battery case and method of production of same (2025-12-09),
2. 12492732 - Attachment structure of brake disk for railway vehicle, and brake disk unit using same (2025-12-09),
3. 12492478 - Coated and plated steel sheet or coated and plated steel strip (2025-12-09),
4. 12492477 - Non-oriented electrical steel sheet and surface treatment agent for non-oriented electrical steel sheet (2025-12-09),
5. 12492458 - Steel sheet (2025-12-09),
6. 12491586 - Welded joint (2025-12-09),
7. 12486552 - Steel sheet and method for manufacturing steel sheet (2025-12-02),
8. 12486548 - Method for producing reduced iron (2025-12-02),
9. 12483075 - Stator core and rotary electric machine (2025-11-25),
10. 12480610 - Solid lubricant for Zn-Ni coating on a threaded tubular element (2025-11-25),
11. 12480191 - Steel sheet (2025-11-25),
12. 12480190 - Steel (2025-11-25),
13. 12479199 - Bonded and stacked core manufacturing method and bonded and stacked core manufacturing apparatus (2025-11-25),
14. 12479191 - Steel welded member (2025-11-25),
15. 12474010 - Oil-well metal pipe (2025-11-18),
NIPPON STEEL CORPORATION is a leading global steel manufacturer and supplier. We offer a wide range of high-quality steel products and solutions for various industries, including automotive, construction, and energy. Our commitment to innovation, sustainability, and customer satisfaction has made us a trusted partner for businesses worldwide. Visit our website to learn more about our company and the solutions we provide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

3,548 Patents

#31 in Tokyo

#64 in Japan

#253 in the World

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Tokyo, Japan

Nippon Steel Corporation

Forward Citations = 21,922

6,827 inventors:

goldMedal Kazutoshi Takeda (75 out of 83 patents)

silverMedal Yoshiyuki Ushigami (61 out of 72 patents)

bronzeMedal Yoshiaki Nakazawa (59 out of 92 patents)

4.  Hiroyasu Fujii (50 out of 52 patents)

5.  Hiroyuki Kawata (48 out of 68 patents)

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