Forward Citations = 30

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19 inventors (with patents filed for the assignee):

Norio Shoji (2 out of 25 patents)

Yoshihiro Okano (2 out of 35 patents)

Kiyotaka Hirahara (2 out of 2 patents)

4. Akio Kida (2 out of 2 patents)

5. Toshiyuki Namioka (2 out of 2 patents)

6. Minoru Komura (2 out of 2 patents)

7. Ryouichi Ikeda (2 out of 2 patents)

8. Toshiji Makabe (1 out of 8 patents)

9. Yuko Takeuchi (1 out of 4 patents)

10. Hitoshi Hayakawa (1 out of 5 patents)

11. Noriyuki Yoneda (1 out of 14 patents)

12. Jun Kaita (1 out of 1 patent)

13. Hidehiko Kudoh (1 out of 2 patents)

14. Yoshiko Endoh (1 out of 1 patent)

15. Shunji Higashi (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5940952 - Method for applying corrosion-protective coating to joint between (1999-08-24),

2. 5926936 - Method for applying corrosion-protective coating to joint between (1999-07-27),

3. 5855699 - Method for manufacturing welded clad steel tube (1999-01-05),

4. 4956326 - Method for dehalogenation of a halide and catalyst used therefor (1990-09-11),

Nippon Kokan Co., Ltd. (NKK) is a Japanese steel manufacturing company founded in 1912. The company specializes in the production of steel products for various industries such as shipbuilding, construction, and automotive. NKK is known for its high-quality products and innovative solutions that meet the needs of its customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

4 Patents

#2,786 in Tokyo

#7,416 in Japan

Tokyo, Japan

Nippon Kokan Co., Ltd.