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For the Inventor, By the Inventor

Kanagawa, Japan

Chiyoda Corporation


USPTO Granted Patents = 167



Trademarks = 12

Forward Citations = 1,158

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348 inventors (with patents filed for the assignee):

goldMedal Sachio Asaoka (20 out of 27 patents)

silverMedal Takeshi Minami (17 out of 18 patents)

bronzeMedal Fuyuki Yagi (15 out of 15 patents)

4.  Yoshimi Shiroto (13 out of 24 patents)

5.  Shuhei Wakamatsu (12 out of 12 patents)

6.  Atsuro Nagumo (12 out of 12 patents)

7.  Mitsunori Shimura (12 out of 12 patents)

8.  Kenichi Kawazuishi (11 out of 14 patents)

9.  Noriyuki Yoneda (11 out of 14 patents)

10.  Dai Takeda (9 out of 9 patents)

11.  Shinichiro Yanagawa (9 out of 30 patents)

12.  Nobuo Moriya (9 out of 9 patents)

13.  Yoichi Umehara (8 out of 8 patents)

14.  Yoshimi Okada (8 out of 8 patents)

15.  Yukitaka Wada (8 out of 8 patents)


Core Competencies:
Assistance Devices
Plant Operation Conditions
Hydrogen Production
Synthesis Gas Manufacturing
Desulfurization Methods
Fluid State Estimation
Natural Gas Liquefaction
Composite Catalysts
Exhaust Gas Treatment
Hydrocracking Processes
Protein Crystallization
Air-Cooled Heat Exchangers

167 patents:

1. 12468295 - Assistance method, assistance device, and assistance program (2025-11-11),
2. 12449794 - Production system (2025-10-21),
3. 12436508 - Assistance device, learning device, and plant operation condition setting assistance system (2025-10-07),
4. 12384735 - Manufacturing method of butadiene (2025-08-12),
5. 12282720 - Fluid state estimation system, learning device, learning program, estimation device, and estimation program (2025-04-21),
6. 12253306 - Method and system for determining operating conditions of liquefied natural gas plant (2025-03-18),
7. 12034280 - Plant module, plant including the same, and operation method of plant (2024-07-09),
8. 11914348 - Plant operation condition setting assistance system, learning device, and operation condition setting assistance device (2024-02-27),
9. 11665193 - Method for managing plant, plant design device, and plant management device (2023-05-30),
10. 11531326 - Plant management system and management device (2022-12-20),
11. 11499776 - Method for constructing natural gas liquefaction plant (2022-11-15),
12. 11458434 - Gas downcomer pipe, installation member and desulfurization apparatus (2022-10-04),
13. 11320811 - Plant operating condition setting support system, learning device, and operating condition setting support device (2022-05-03),
14. 11301976 - Inspection support system, learning device, and determination device (2022-04-12),
15. 11268198 - Synthesis gas production system (2022-03-08),
Chiyoda Corporation is a global engineering and construction company based in Tokyo, Japan. With over 70 years of experience, Chiyoda specializes in providing comprehensive solutions in the fields of energy, chemicals, and industrial facilities. They offer a wide range of services including engineering, procurement, project management, and construction. Chiyoda is committed to delivering sustainable solutions that contribute to the development of society and the environment.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

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167 Patents

#20 in Kanagawa

#772 in Japan

#4,807 in the World

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Kanagawa, Japan

Chiyoda Corporation

Forward Citations = 1,158

348 inventors:

goldMedal Sachio Asaoka (20 out of 27 patents)

silverMedal Takeshi Minami (17 out of 18 patents)

bronzeMedal Fuyuki Yagi (15 out of 15 patents)

4.  Yoshimi Shiroto (13 out of 24 patents)

5.  Shuhei Wakamatsu (12 out of 12 patents)

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