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Itamishi, Japan

Sumitomo (sei) Steel Wire Corp.

USPTO Granted Patents = 18

Forward Citations = 26

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43 inventors (with patents filed for the assignee):

Kenichi Okamoto (6 out of 13 patents)

Nozomu Kawabe (5 out of 50 patents)

Hiromu Izumida (4 out of 14 patents)

4. Shinei Takamura (4 out of 9 patents)

5. Yuichi Sano (4 out of 5 patents)

6. Katsuhito Oshima (3 out of 8 patents)

7. Yoshihiko Touda (3 out of 4 patents)

8. Yasuo Sakai (3 out of 10 patents)

9. Toshihiko Niki (3 out of 3 patents)

10. Hitoshi Wakahara (3 out of 3 patents)

11. Teruyuki Murai (3 out of 35 patents)

12. Masato Yamada (2 out of 13 patents)

13. Junichi Kodama (2 out of 11 patents)

14. Jun Sugawara (2 out of 23 patents)

15. Shingo Nakajima (2 out of 12 patents)

18 patents: Sort by Forward Citations

1. 10323415 - Pregrouted PC steel material and curing method for pregrouted layer therein (2019-06-18),

2. 10081943 - Pregrouted PC steel material and method for hardening pregrout layer thereof (2018-09-25),

3. 9849531 - Electrode wire for wire electric discharge machining, and method for producing same (2017-12-26),

4. 9169403 - Powder coating composition for PC strand coating, coating method, and coating film (2015-10-27),

5. 8890516 - Tension measurement apparatus (2014-11-18),

6. 8833420 - Metal cord, rubber-cord complex and pneumatic tire using the same (2014-09-16),

7. 8833419 - Metal cord, rubber-cord complex and pneumatic tire using the same (2014-09-16),

8. 8657973 - Magnesium-based alloy wire and method of its manufacture (2014-02-25),

9. 8308878 - Magnesium-based alloy wire and method of its manufacture (2012-11-13),

10. 8080120 - Method and apparatus of manufacturing annular concentric stranded bead cord (2011-12-20),

11. 7886490 - Strand (2011-02-15),

12. 7861507 - High-strength prestressing strand, method for manufacturing the same, and concrete construction using the same (2011-01-04),

13. 7775028 - Annular metal cord and endless metal belt (2010-08-17),

14. 7735307 - Annular concentric-lay bead cord (2010-06-15),

15. 7717411 - High-strength stainless steel spring and method of manufacturing the same (2010-05-18),

Sumitomo (SEI) Steel Wire Corp. is a global company specializing in the production and distribution of steel wire products. With a rich history spanning over several decades, Sumitomo Steel Wire has established itself as a reputable and trusted name in the steel industry. The company is known for its high-quality and innovative wire products used in various industries such as automotive, construction, appliances, and more. Sumitomo Steel Wire is committed to exceptional customer service, technological advancements, and sustainable practices in manufacturing.

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

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USPTO Data Jan 1 1976 - Dec 30 2025

18 Patents

#1 in Itamishi

#3,056 in Japan

#33,185 in the World

Itamishi, Japan

Sumitomo (sei) Steel Wire Corp.

Forward Citations = 26

43 inventors:

Kenichi Okamoto (6 out of 13 patents)

Nozomu Kawabe (5 out of 50 patents)

Hiromu Izumida (4 out of 14 patents)

4. Shinei Takamura (4 out of 9 patents)

5. Yuichi Sano (4 out of 5 patents)

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