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Yoshino Gypsum Co., Ltd.

USPTO Granted Patents = 68

CIPO Patents = 19

EPO Patents = 53

Forward Citations = 243

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111 inventors (with patents filed for the assignee):

Takuji Yamashita (9 out of 9 patents)

Tomoya Hasegawa (9 out of 12 patents)

Ushio Sudo (8 out of 8 patents)

4. Yuichi Hirooka (6 out of 6 patents)

5. Itaru Yokoyama (6 out of 8 patents)

6. Kenichi Sugano (6 out of 6 patents)

7. Yusuke Watanabe (5 out of 35 patents)

8. Katsumi Niimi (5 out of 5 patents)

9. Wataru Ohuchi (5 out of 5 patents)

10. Yusuke Ichino (4 out of 4 patents)

11. Seigo Ishibashi (4 out of 4 patents)

12. Masato Yoshikane (4 out of 4 patents)

13. Michio Nishi (4 out of 4 patents)

14. Takeshi Takenaka (3 out of 3 patents)

15. Yosuke Sato (3 out of 26 patents)

Core Competencies:

Gypsum-Based Materials

Load-Bearing Wall Structures

Fireproof Coating Materials

Partition Wall Construction

Gypsum Panel Manufacturing

Slurry Delivery Systems

Insolubilizing Agents

Casting Investment Compositions

Mixing and Stirring Devices

Gypsum Composition Modification

Dustiness Evaluation Methods

Inspection Apparatus

68 patents: Sort by Forward Citations

1. 12492330 - Latent heat storage gypsum board and partition structure (2025-12-09),

2. 12392133 - Interior building materials (2025-08-19),

3. 12312809 - Gypsum-based load-bearing board, load-bearing wall structure, and load-bearing wall construction method for wooden construction building (2025-05-27),

4. 12305391 - Building face material with printed indications and method for manufacturing the same (2025-05-20),

5. D1060739 - Construction joint material with adhesive (2025-02-04),

6. 12116803 - Connection structure between partition walls and floor slab, and method for constructing same (2024-10-15),

7. 12110684 - Clip, ceiling base, and method for constructing same (2024-10-08),

8. 12103196 - Inspection apparatus, plate-shaped object manufacturing apparatus, inspection method, and plate-shaped object manufacturing method (2024-10-01),

9. 11844660 - Gypsum-based investment material composition for casting, and method for manufacturing gypsum-based investment material composition for casting (2023-12-19),

10. 11752652 - Cutting apparatus, apparatus for manufacturing sheet material, and apparatus for manufacturing gypsum building material (2023-09-12),

11. 11692944 - Apparatus for inspecting plate-like bodies (2023-07-04),

12. 11692344 - Fireproof coated structure for penetration part (2023-07-04),

13. 11624185 - Penetration part fireproof coating material (2023-04-11),

14. 11598089 - Partition wall (2023-03-07),

15. 11565439 - Slurry delivery conduit of mixer and slurry delivery method (2023-01-31),

YOSHINO GYPSUM CO., LTD. is a Japanese company primarily engaged in the production and sales of gypsum-based building materials. With a history of over 100 years, the company offers a wide range of products including plasterboards, industrial plaster, and cement additives. YOSHINO GYPSUM constantly strives to achieve sustainable development by implementing innovative manufacturing methods and focusing on environmental conservation. Their commitment to quality and customer satisfaction has earned them a strong reputation in the industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

68 Patents

#593 in Tokyo

#1,400 in Japan

#10,601 in the World

Yoshino Gypsum Co., Ltd.

Forward Citations = 243

111 inventors:

Takuji Yamashita (9 out of 9 patents)

Tomoya Hasegawa (9 out of 12 patents)

Ushio Sudo (8 out of 8 patents)

4. Yuichi Hirooka (6 out of 6 patents)

5. Itaru Yokoyama (6 out of 8 patents)

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