% Expired Patents = 50.0

EPO Patents = 2

Forward Citations = 4

Loading Chart...

18 inventors (with patents filed for the assignee):

Kunikazu Tomita (3 out of 20 patents)

Toshiyuki Murakami (2 out of 4 patents)

Tetsuo Shiraga (2 out of 3 patents)

4. Kiyohito Ishida (1 out of 35 patents)

5. Akira Tange (1 out of 141 patents)

6. Keisuke Ando (1 out of 13 patents)

7. Takashi Iwamoto (1 out of 55 patents)

8. Kiyoshi Uwai (1 out of 9 patents)

9. Kiyoshi Kurimoto (1 out of 6 patents)

10. Yurika Goto (1 out of 5 patents)

11. Katsuhiko Kikuchi (1 out of 1 patent)

12. Yutaka Tamai (1 out of 1 patent)

13. Kazuaki Hattori (1 out of 1 patent)

14. Kanji Inoue (1 out of 8 patents)

15. Norihiko Mori (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 10125416 - Steel for nitrocarburizing and nitrocarburized component, and methods for producing said steel for nitrocarburizing and said nitrocarburized component (2018-11-13),

2. 8691141 - Low carbon resulfurized free cutting steel (2014-04-08),

3. 8206521 - High-strength stabilizer steel for vehicles having excellent corrosion resistance and low-temperature toughness, method of producing the same, and stabilizer (2012-06-26),

4. 8124008 - Free cutting steel (2012-02-28),

Company Overview

JFE Bars & Shapes Corporation is a leading manufacturer and supplier of steel bars and shapes for various industries including construction, automotive, and machinery. With a focus on innovation and quality, JFE offers a wide range of products to meet the needs of its customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#3,053 in Tokyo

#7,573 in Japan

Tokyo, Japan

Jfe Bars & Shapes Corporation

Forward Citations = 4

18 inventors:

Kunikazu Tomita (3 out of 20 patents)

Toshiyuki Murakami (2 out of 4 patents)

Tetsuo Shiraga (2 out of 3 patents)

4. Kiyohito Ishida (1 out of 35 patents)

5. Akira Tange (1 out of 141 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jfe Bars & Shapes Corporation. Retrieved from https://idiyas.com/company/jfe-bars-and-shapes

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

2 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]