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Shizuoka, Japan

Gc Corporation

USPTO Granted Patents = 314

% Expired Patents = 12.7

CIPO Patents = 2

EPO Patents = 129

Trademarks = 53

Forward Citations = 2,076

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320 inventors (with patents filed for the assignee):

Hiroshi Kamohara (37 out of 42 patents)

Go Mashio (12 out of 12 patents)

Tomohiro Kumagai (11 out of 11 patents)

4. Tatsunosuke Miyano (10 out of 10 patents)

5. Junichi Okada (10 out of 18 patents)

6. Natsumi Mizuno (10 out of 10 patents)

7. Ryosuke Yoshimitsu (8 out of 8 patents)

8. Yoshimasa Suzuki (8 out of 35 patents)

9. Shigenori Akiyama (8 out of 8 patents)

10. Tetsuro Sakuma (8 out of 13 patents)

11. Kazuhiro Kinoshita (8 out of 8 patents)

12. Yusuke Nagatomi (8 out of 8 patents)

13. Keita Sato (7 out of 8 patents)

14. Naofumi Matsumoto (7 out of 7 patents)

15. Makoto Takahashi (7 out of 122 patents)

Core Competencies:

Dental Materials

Polymerizable Compositions

Dental Cements

Impression Materials

Dental Prostheses

Dental Restorative Kits

Antibacterial Particles

Dental Floss

Tooth Whitening

Dental Gypsum

Occlusion Pressure

Bioabsorbable Membrane

314 patents: Sort by Forward Citations

1. D1147376 - Orthodontic bracket (2026-09-08),

2. D1143013 - Orthodontic bracket (2026-08-18),

3. D1140020 - Nozzle tip for dental syringe (2026-08-04),

4. D1138717 - Dental fixing pin (2026-08-04),

5. D1136201 - Orthodontic bracket (2026-07-21),

6. 12653653 - Method of producing block for dental prostheses, and method of producing dental prosthesis (2026-06-16),

7. 12637383 - Method of producing glass-ceramic blank, and glass-ceramic blank (2026-05-26),

8. 12600867 - Method of coating article, use for coating article, and polymerizable composition (2026-04-14),

9. 12575916 - Block for dental prostheses (2026-03-17),

10. 12569412 - Base paste and dental additive silicone impression material (2026-03-10),

11. 12569409 - Dental polymerizable composition (2026-03-10),

12. 12502338 - Dental glass ionomer cement (2025-12-23),

13. 12497476 - Antibacterial polymer particles, composition, and article (2025-12-16),

14. 12478561 - Dental composition and dental restorative kit (2025-11-25),

15. D1101147 - Cartridge dispenser (2025-11-04),

GC Corporation is a global technology company specializing in software development, IT consulting, and digital solutions. With a client base across multiple industries, our team of skilled professionals consistently deliver innovative and customized solutions to meet the unique needs of our clients. Our expertise lies in areas such as data analytics, cloud computing, cybersecurity, and enterprise software development. As a trusted partner, we collaborate closely with our clients to drive digital transformation and help them achieve their business goals. Visit our website to learn more about our services and explore how GC Corporation can empower your organization with technology.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

314 Patents

#4 in Shizuoka

#526 in Japan

#2,847 in the World

Shizuoka, Japan

Gc Corporation

Forward Citations = 2,076

320 inventors:

Hiroshi Kamohara (37 out of 42 patents)

Go Mashio (12 out of 12 patents)

Tomohiro Kumagai (11 out of 11 patents)

4. Tatsunosuke Miyano (10 out of 10 patents)

5. Junichi Okada (10 out of 18 patents)

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