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Toyo Engineering Corporation

USPTO Granted Patents = 171

% Expired Patents = 11.1

CIPO Patents = 4

EPO Patents = 32

Trademarks = 1

Forward Citations = 1,456

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302 inventors (with patents filed for the assignee):

Yasuhiko Kojima (12 out of 15 patents)

Kozo Ohsaki (12 out of 12 patents)

Hidetsugu Fujii (11 out of 12 patents)

4. Haruyuki Morikawa (9 out of 9 patents)

5. Toshihiro Wakabayashi (9 out of 10 patents)

6. Tetsuzo Honda (9 out of 9 patents)

7. Katsutoshi Kikuchi (8 out of 8 patents)

8. Tadayoshi Tomita (8 out of 8 patents)

9. Takato Nakao (7 out of 7 patents)

10. Tetsuo Maeda (7 out of 7 patents)

11. Keizo Konoki (7 out of 7 patents)

12. Keigo Sasaki (6 out of 6 patents)

13. Genshi Nishikawa (6 out of 6 patents)

14. Kenji Sakai (6 out of 7 patents)

15. Kenichiro Matsuba (6 out of 6 patents)

Core Competencies:

Urea Manufacturing

Heat Pump

Hydrocarbon Separation

Fluidized Bed Granulator

Aqueous Solution Treatment

Distillation Apparatus

Reactor

Polymer Resin

Hydrocracking Catalyst

Wastewater Treatment

Gasification

Dimethyl Ether Production

171 patents: Sort by Forward Citations

1. 12510060 - Method for storing compressed air energy (2025-12-30),

2. 12276465 - Heat pump and heat pump unit using same (2025-04-14),

3. 12247002 - Process and apparatus for urea production (2025-03-11),

4. 12128379 - Fluidized bed granulator or fluidized bed/spouted bed granulator (2024-10-29),

5. 12055324 - Heat pump unit (2024-08-06),

6. 12044642 - Method and device for estimating outer surface temperature of radiant coil of cracking furnace for ethylene production and ethylene producing device (2024-07-23),

7. 11878957 - Process and apparatus for urea production (2024-01-23),

8. 11807460 - Chute tube for transferring particles (2023-11-07),

9. 11692771 - Process and apparatus for treating lean LNG (2023-07-04),

10. 11498895 - Process and apparatus for urea production (2022-11-15),

11. 11465069 - Diabatic distillation column (2022-10-11),

12. 11408678 - Method and apparatus for separating hydrocarbons (2022-08-09),

13. 11274256 - Apparatus for separation and recovery of hydrocarbons from LNG (2022-03-15),

14. 11145886 - Redox flow battery (2021-10-12),

15. 11143441 - Closed loop refrigeration system (2021-10-12),

Toyo Engineering Corporation, headquartered in Tokyo, specializes in the development and manufacturing of advanced technologies for urea production. The company focuses on core areas such as urea manufacturing processes, hydrocarbon separation, and fluidized bed granulation. Additionally, Toyo Engineering is involved in the design and implementation of various chemical engineering solutions, including distillation apparatus and reactors, as well as polymer resin technologies. Its innovations contribute significantly to the efficiency and sustainability of chemical production in the global market.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Toyo Engineering Corporation

171 Patents

#397 in Tokyo

#788 in Japan

#4,841 in the World

Toyo Engineering Corporation

Forward Citations = 1,456

302 inventors:

Yasuhiko Kojima (12 out of 15 patents)

Kozo Ohsaki (12 out of 12 patents)

Hidetsugu Fujii (11 out of 12 patents)

4. Haruyuki Morikawa (9 out of 9 patents)

5. Toshihiro Wakabayashi (9 out of 10 patents)

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