Japan Casting & Forging Corporation

Calculating rank

USPTO Granted Patents = 4

% Expired Patents = 25.0

EPO Patents = 2

Forward Citations = 5

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11 inventors (with patents filed for the assignee):

Seinosuke Yano (2 out of 7 patents)

Takashi Harabuchi (2 out of 2 patents)

Hiroshi Yamada (1 out of 56 patents)

4. Yasushi Wakeshima (1 out of 1 patent)

5. Yoshihiro Okamura (1 out of 6 patents)

6. Yasuhiko Yamashita (1 out of 2 patents)

7. Hisayoshi Yatoh (1 out of 1 patent)

8. Kimio Nagata (1 out of 1 patent)

9. Hiroshi Mochiki (1 out of 1 patent)

10. Yoshikazu Nakano (1 out of 1 patent)

11. Koh Moriyama (1 out of 1 patent)

12. Terada Katsumi (0 patent)

13. Higuchi Takafumi (0 patent)

14. Shibahara Hiroki (0 patent)

15. Miyata Takayuki (0 patent)

4 patents: Sort by Forward Citations

1. 9976197 - Method for producing journal part of 9 to 12% Cr steel turbine rotor, and journal part produced by the method (2018-05-22),

2. 5863490 - Gas blast nozzle for molten metal and method of using the same (1999-01-26),

3. 5558726 - Cold rolled steel having excellent machinability and production thereof (1996-09-24),

4. 5509977 - High strength hot rolled steel plates and sheets excellent in uniform (1996-04-23),

Company Overview

Japan Casting & Forging Corporation is a leading manufacturer of high-quality castings and forgings. With a history dating back over 70 years, JCFC has earned a reputation for excellence in the industry. Their products are used in a wide range of industries, including automotive, aerospace, and construction. JCFC is committed to delivering top-tier products and services to their customers around the world.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#63 in Fukuoka

#7,590 in Japan

Fukuoka, Japan

Japan Casting & Forging Corporation

Forward Citations = 5

11 inventors:

Seinosuke Yano (2 out of 7 patents)

Takashi Harabuchi (2 out of 2 patents)

Hiroshi Yamada (1 out of 56 patents)

4. Yasushi Wakeshima (1 out of 1 patent)

5. Yoshihiro Okamura (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Japan Casting & Forging Corporation. Retrieved from https://idiyas.com/company/japan-casting-and-forging

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]