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Nippon Steel Stainless Steel Corporation

USPTO Granted Patents = 27

CIPO Patents = 3

EPO Patents = 32

Trademarks = 4

Forward Citations = 11

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54 inventors (with patents filed for the assignee):

Junichi Hamada (6 out of 42 patents)

Masaharu Hatano (5 out of 17 patents)

Yoshiharu Inoue (4 out of 27 patents)

4. Kazuhisa Matsumoto (4 out of 7 patents)

5. Masatoshi Abe (3 out of 26 patents)

6. Nobuhiko Hiraide (3 out of 13 patents)

7. Atsutaka Hayashi (3 out of 8 patents)

8. Yasuhiro Ehara (3 out of 6 patents)

9. Shinji Tsuge (3 out of 10 patents)

10. Kou Nishimura (3 out of 3 patents)

11. Takumi Nishimoto (2 out of 10 patents)

12. Shun Saito (2 out of 46 patents)

13. Kazunari Imakawa (2 out of 7 patents)

14. Kazunari Morita (2 out of 10 patents)

15. Hiroshi Morikawa (2 out of 9 patents)

27 patents: Sort by Forward Citations

1. 12435402 - Austenitic stainless steel material (2025-10-07),

2. 12404574 - Alloy material and method for producing same (2025-09-02),

3. 12359292 - Rod-shaped electromagnetic stainless steel material (2025-07-15),

4. 12270096 - Ferritic stainless steel sheet, production method thereof, and ferritic stainless member (2025-04-08),

5. 12091578 - Clear-coated stainless steel sheet (2024-09-17),

6. 12060632 - Ferritic stainless steel sheet (2024-08-13),

7. 11946126 - Welded structure and storage tank (2024-04-02),

8. 11891681 - Ferritic stainless steel sheet, method for producing the same, and part (2024-02-06),

9. 11873542 - High nickel alloy excellent in high welding temperature cracking resistance (2024-01-16),

10. 11667986 - Ferritic stainless steel and method for manufacturing same, ferritic stainless steel sheet and method for manufacturing same, and fuel cell member (2023-06-06),

11. 11643699 - Ferritic stainless steel sheet and production method thereof, and ferritic stainless member (2023-05-09),

12. 11603573 - High strength austenitic stainless steel having excellent resistance to hydrogen embrittlement, method for manufacturing the same, and hydrogen equipment used for high-pressure hydrogen gas and liquid hydrogen environment (2023-03-14),

13. 11535915 - Stainless steel material, constituting component, cell, and fuel cell stack (2022-12-27),

14. 11512374 - Duplex stainless steel and manufacturing method thereof (2022-11-29),

15. 11499204 - Martensitic stainless steel sheet, method for manufacturing same, and spring member (2022-11-15),

NIPPON STEEL STAINLESS STEEL CORPORATION is a leading global stainless steel manufacturer. With a history stretching back over a century, the company is committed to providing high-quality stainless steel products for various industries. NIPPON STEEL STAINLESS STEEL CORPORATION employs advanced technologies and strict quality control measures to ensure the durability, strength, and corrosion resistance of their stainless steel products. Their extensive product range includes stainless steel sheets, tubes, bars, wires, and more, catering to a diverse range of applications such as automotive, architecture, medical, and energy sectors. Continuously striving for innovation and customer satisfaction, NIPPON STEEL STAINLESS STEEL CORPORATION remains a trusted partner for stainless steel solutions worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

27 Patents

#993 in Tokyo

#2,405 in Japan

#23,290 in the World

Nippon Steel Stainless Steel Corporation

Forward Citations = 11

54 inventors:

Junichi Hamada (6 out of 42 patents)

Masaharu Hatano (5 out of 17 patents)

Yoshiharu Inoue (4 out of 27 patents)

4. Kazuhisa Matsumoto (4 out of 7 patents)

5. Masatoshi Abe (3 out of 26 patents)

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