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Shofu Inc.

USPTO Granted Patents = 100

EPO Patents = 55

Trademarks = 43

Forward Citations = 296

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88 inventors (with patents filed for the assignee):

Yusei Kadobayashi (21 out of 45 patents)

Toshiyuki Nakatsuka (17 out of 26 patents)

Masako Shigezawa (15 out of 19 patents)

4. Toshio Kitamura (13 out of 14 patents)

5. Daisuke Hara (13 out of 16 patents)

6. Shuji Sakamoto (10 out of 11 patents)

7. Katsuya Kimoto (8 out of 13 patents)

8. Shunsuke Miyata (8 out of 10 patents)

9. Kenzo Yamamoto (8 out of 11 patents)

10. Shuhei Takahashi (8 out of 11 patents)

11. Masanori Goto (7 out of 8 patents)

12. Hidefumi Fujimura (7 out of 10 patents)

13. Ryouji Takei (7 out of 7 patents)

14. Mitsuji Teramae (6 out of 12 patents)

15. Noriyuki Negoro (6 out of 12 patents)

Core Competencies:

Dental Zirconia

Photocurable Composition

Dental CAD/CAM

Sintering Method

Dental Adhesive Composition

Three-Dimensional Printing

Glass Ionomer Cement

Composite Material

Dental Cutting Processing

Translucency Improvement

Storage Stability

Optical Transparency

100 patents: Sort by Forward Citations

1. 12484995 - Zirconia mill blank having layers with different contents of yttria and alumina (2025-12-02),

2. 12454490 - Sintering method for dental zirconia calcined body (2025-10-28),

3. 12295802 - Ceramic mill blank for dental cutting and machining (2025-05-13),

4. 12213849 - Dental zirconia blank having multilayer structure different in content of yttria (2025-02-04),

5. 12194112 - Indium-containing translucency improving liquid for dental zirconia calcined body (2025-01-14),

6. 12193897 - Zirconia mill blank for dental cutting and machining and preparing method thereof, and transparency improving liquid for zirconia mill blank for dental cutting and machining and using method thereof (2025-01-14),

7. 12115032 - Dental zirconia blank having high relative density (2024-10-15),

8. 12064493 - Dental photocurable composition having excellent storage stability (2024-08-20),

9. 12011490 - Dental photocurable composition excellent in operability and storage stability (2024-06-18),

10. 11986362 - Zirconia mill blank for dental cutting and machining and preparing method thereof (2024-05-21),

11. 11806202 - Mill blank for dental CAD/CAM with cutout portion for positioning (2023-11-07),

12. 11767411 - Curable composition containing transition metal adsorbent (2023-09-26),

13. 11759299 - Dental stereolithography-type three-dimensional printing material for preparing dental three-dimensional modeled object (2023-09-19),

14. 11744781 - Dental photopolymerizable composition for 3D printer (2023-09-05),

15. 11737957 - Dental curable composition including chain transfer agent (2023-08-29),

SHOFU INC. is a global dental materials and devices manufacturer, providing creative and innovative solutions to dental professionals worldwide. With a focus on research and development, SHOFU delivers high-quality dental products including ceramics, composites, abrasives, and equipment to enhance dental practices and patient care.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

100 Patents

#35 in Kyoto 615-0031

#1,098 in Japan

#7,559 in the World

Shofu Inc.

Forward Citations = 296

88 inventors:

Yusei Kadobayashi (21 out of 45 patents)

Toshiyuki Nakatsuka (17 out of 26 patents)

Masako Shigezawa (15 out of 19 patents)

4. Toshio Kitamura (13 out of 14 patents)

5. Daisuke Hara (13 out of 16 patents)

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