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For the Inventor, By the Inventor

Fukuoka, Japan

Nittetsu Plant Designing Corporation


USPTO Granted Patents = 15

% Expired Patents = 26.7



Forward Citations = 107

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59 inventors (with patents filed for the assignee):

goldMedal Osamu Tanaka (4 out of 25 patents)

silverMedal Hiroyasu Fujii (3 out of 53 patents)

bronzeMedal Norikazu Fujii (3 out of 16 patents)

4.  Tomoji Kumano (3 out of 15 patents)

5.  Noriko Yamada (2 out of 16 patents)

6.  Yuji Kubo (2 out of 23 patents)

7.  Shinji Shima (2 out of 5 patents)

8.  Masahide Nagatomi (2 out of 2 patents)

9.  Kosuke Yamashita (2 out of 2 patents)

10.  Tomoaki Tanaka (2 out of 5 patents)

11.  Makoto Sumi (2 out of 2 patents)

12.  Chikara Kaido (2 out of 2 patents)

13.  Kazutaka Higashine (2 out of 4 patents)

14.  Kazufumi Hanzawa (2 out of 3 patents)

15.  Masayoshi Tanaka (2 out of 20 patents)


15 patents:

1. 8722372 - Method for recovering and producing ethanol and oil (2014-05-13),
2. 7850792 - Grain-oriented electrical steel sheet having insulating film not containing chromium and insulating film agent of same (2010-12-14),
3. 7833360 - Method of producing grain-oriented electrical steel sheet very excellent in magnetic properties (2010-11-16),
4. 7655181 - Screw conveyor of rotary hearth furnace for discharging reduced iron (2010-02-02),
5. 7497987 - Refining method and refining apparatus for chromium-contained molten steel (2009-03-03),
6. 7471182 - Core having superior end face insulation and method of treating core end faces to give insulation coating (2008-12-30),
7. 7311519 - Raw material feeding apparatus for rotary hearth furnace (2007-12-25),
8. 7173509 - Core having superior end face insulation and method of treating core end faces to give insulation coating (2007-02-06),
9. 6923573 - Apparatus and method for measuring temperature of molten metal (2005-08-02),
10. 5238051 - Continuous casting apparatus (1993-08-24),
11. 5236566 - Vertical type stream plating apparatus (1993-08-17),
12. 5150598 - Apparatus for scribing grain-oriented electrical steel strip (1992-09-29),
13. 4742706 - Strain imparting device (1988-05-10),
14. 4337928 - Apparatus for changing the charge distribution in a blast furnace (1982-07-06),
15. 4330112 - Apparatus for cooling a steel strip in a continuous annealing line (1982-05-18),
Company Overview
Nittetsu Plant Designing Corporation, headquartered in Fukuoka, Japan, specializes in the design and engineering of industrial plants across various sectors. The company focuses on delivering innovative solutions in areas such as chemical processing, energy, and environmental technology. With a commitment to enhancing operational efficiency and sustainability, Nittetsu Plant Designing integrates advanced engineering practices and cutting-edge technology to meet the evolving needs of its clients in the industrial landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#24 in Fukuoka

#3,443 in Japan

#39,921 in the World

Fukuoka, JP
Fukuoka, Japan

Nittetsu Plant Designing Corporation

Forward Citations = 107

59 inventors:

goldMedal Osamu Tanaka (4 out of 25 patents)

silverMedal Hiroyasu Fujii (3 out of 53 patents)

bronzeMedal Norikazu Fujii (3 out of 16 patents)

4.  Tomoji Kumano (3 out of 15 patents)

5.  Noriko Yamada (2 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nittetsu Plant Designing Corporation. Retrieved from https://idiyas.com/company/nittetsu-plant-designing

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]
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