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Nippon Yakin Kogyo Co., Ltd.

USPTO Granted Patents = 47

EPO Patents = 9

Trademarks = 7

Forward Citations = 249

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73 inventors (with patents filed for the assignee):

Yuji Ikegami (8 out of 14 patents)

Shigeru Hirata (6 out of 9 patents)

Hidekazu Todoroki (5 out of 5 patents)

4. Noboru Tachino (5 out of 5 patents)

5. Takeshi Kamiya (5 out of 5 patents)

6. Masaomi Tsuda (5 out of 5 patents)

7. Yoshikazu Koshiba (5 out of 6 patents)

8. Yoshito Fujiwara (5 out of 6 patents)

9. Kazuhiro Yamakawa (4 out of 4 patents)

10. Tatsuya Itoh (4 out of 6 patents)

11. Tsutomu Omori (4 out of 6 patents)

12. Toshihiko Taniuchi (4 out of 4 patents)

13. Yutaka Kobayashi (3 out of 112 patents)

14. Fugao Wei (3 out of 3 patents)

15. Yukio Aoki (3 out of 10 patents)

Core Competencies:

Corrosion-Resistant Alloys

Nickel-Based Alloys

Austenitic Stainless Steel

Ferritic Stainless Steel

Permalloy Materials

Metal Honeycomb Carriers

Catalyst Support

Superplastic Stainless Steels

Induction Cookware

Hydrogen Storage Alloys

Metal Coating Processes

Thin Metal Sheet Manufacturing

47 patents: Sort by Forward Citations

1. 12509753 - Fe—Ni—Cr alloy having superior corrosion resistance, weldability, and oxidation resistance (2025-12-30),

2. 12492454 - Highly corrosion-resistant Ni-Cr-Mo-N alloy having superior phase stability (2025-12-09),

3. 12286690 - Ni—Cr—Mo—Nb alloy (2025-04-29),

4. 12116656 - Ti-containing Fe—Ni—Cr alloy having superior quality on slit cut surface (2024-10-15),

5. 11535914 - Duplex stainless steel having superior low temperature toughness (2022-12-27),

6. 11118250 - Fe—Cr—Ni alloy and method for production thereof (2021-09-14),

7. 10927438 - Fe-Ni-Cr alloy, Fe-Ni-Cr alloy strip, sheath heater, method of manufacturing Fe-Ni-Cr alloy, and method of manufacturing sheath heater (2021-02-23),

8. 10513756 - Nickel-based alloy (2019-12-24),

9. 10400317 - Fe—Cr—Ni—Mo alloy and method for producing the same (2019-09-03),

10. 9777356 - Austenitic Fe—Ni—Cr alloy (2017-10-03),

11. 9528173 - High-Mn austenitic stainless steel and a producing method of high-Mn austenitic stainless steel sheet (2016-12-27),

12. 9303301 - Boron-containing stainless steel having excellent hot workability and surface property (2016-04-05),

13. 8703047 - Clothing ornament made from a high-Mn austenitic stainless steel (2014-04-22),

14. 7515395 - Material of case for storage cell (2009-04-07),

15. 7435307 - Fe-Ni based permalloy and method of producing the same and cast slab (2008-10-14),

Nippon Yakin Kogyo Co., Ltd. is a manufacturer and supplier of specialty steel products. With a strong focus on research and development, the company offers a wide range of high-quality stainless steels, nickel alloys, and other specialty alloys. Nippon Yakin Kogyo's products are widely used in various industries, including automotive, aerospace, electronics, and chemical processing. Through continuous innovation and dedication to customer satisfaction, the company has established a strong presence in the global market.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

47 Patents

#717 in Tokyo

#1,740 in Japan

#14,414 in the World

Nippon Yakin Kogyo Co., Ltd.

Forward Citations = 249

73 inventors:

Yuji Ikegami (8 out of 14 patents)

Shigeru Hirata (6 out of 9 patents)

Hidekazu Todoroki (5 out of 5 patents)

4. Noboru Tachino (5 out of 5 patents)

5. Takeshi Kamiya (5 out of 5 patents)

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