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Onoda Cement Co., Ltd.

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USPTO Granted Patents = 101

Forward Citations = 1,395

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182 inventors (with patents filed for the assignee):

Tsutomu Itoh (31 out of 33 patents)

Masahiro Yamamoto (9 out of 11 patents)

Hiroshi Uchikawa (8 out of 8 patents)

4. Hideo Nagasaka (7 out of 12 patents)

5. Hiroshi Saitoh (7 out of 8 patents)

6. Nobuo Furuya (7 out of 7 patents)

7. Masayuki Kitoh (6 out of 6 patents)

8. Takeshi Furukawa (5 out of 17 patents)

9. Takao Take (5 out of 5 patents)

10. Masao Shimoda (4 out of 7 patents)

11. Haruo Tateno (4 out of 8 patents)

12. Hiroshi Hagiwara (4 out of 4 patents)

13. Yoshiharu Fukuda (4 out of 4 patents)

14. Yoshihiko Ueda (4 out of 4 patents)

15. Hajime Kato (4 out of 4 patents)

Core Competencies:

Fly Ash Treatment

Clinker Cooling

Corrosion-Resistant Concrete

Cement Accelerating Agent

Thermal Spray Material

Powder Coating

Super-Hard Ceramics

Electrostatic Coating

Calcium Silicate

Demolition Agent

Non-Combustible Gypsum Board

Self-Hardening Mold Sand

101 patents: Sort by Forward Citations

1. 5599489 - Preparing molded articles of fluorine-containing polymer with increased (1997-02-04),

2. 5454271 - Method and apparatus for measuring powder flow rate (1995-10-03),

3. 5340023 - Plasma spraying method and apparatus (1994-08-23),

4. 5336772 - Method for preparing N-fluoropyridinium salt (1994-08-09),

5. 5330573 - Molding of calcium silicate having high strength and its manufacturing (1994-07-19),

6. 5304577 - Medical or dental hardening compositions (1994-04-19),

7. 5286292 - Method of treating fly ash and fly ash cement (1994-02-15),

8. 5243169 - Multiple torch type plasma generation device and method of generating (1993-09-07),

9. 5217624 - Method for the disposal of aqueous sewage sludge (1993-06-08),

10. 5212657 - Kinetofrictional force testing apparatus (1993-05-18),

11. 5201652 - Method of cooling clinker and clinker cooling apparatus (1993-04-13),

12. 5180257 - Straightening instrument and cyclone (1993-01-19),

13. 5171458 - Hot forming mold and method of manufacturing the same (1992-12-15),

14. 5160376 - Cement setting accelerator and method of manufacturing the same (1992-11-03),

15. 5155335 - Furnace for baking coating powder (1992-10-13),

Company Overview

Onoda Cement Co., Ltd., headquartered in Onoda, Japan, specializes in advanced cement technology, focusing on innovative solutions for construction and infrastructure. The company is known for its expertise in fly ash treatment, clinker cooling, and the development of corrosion-resistant concrete. Additionally, Onoda Cement is engaged in the production of cement accelerating agents, thermal spray materials, and super-hard ceramics, contributing to the enhancement of material performance in various applications. Their commitment to research and development positions them as a leader in sustainable cement solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

101 Patents

#1 in Onoda

#1,116 in Japan

#7,725 in the World

Onoda Cement Co., Ltd.

Forward Citations = 1,395

182 inventors:

Tsutomu Itoh (31 out of 33 patents)

Masahiro Yamamoto (9 out of 11 patents)

Hiroshi Uchikawa (8 out of 8 patents)

4. Hideo Nagasaka (7 out of 12 patents)

5. Hiroshi Saitoh (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Onoda Cement Co., Ltd.. Retrieved from https://idiyas.com/company/onoda-cement-company

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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