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Shizuoka, Japan

Gc Corporation

USPTO Granted Patents = 303

CIPO Patents = 2

EPO Patents = 119

Trademarks = 67

Forward Citations = 2,018

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305 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 33 patents)

9. Tetsuro Sakuma (8 out of 13 patents)

10. Kazuhiro Kinoshita (8 out of 8 patents)

11. Yusuke Nagatomi (8 out of 8 patents)

12. Naofumi Matsumoto (7 out of 7 patents)

13. Hayato Yokohara (7 out of 7 patents)

14. Futoshi Fusejima (7 out of 7 patents)

15. Takumi Suzuki (7 out of 19 patents)

Core Competencies:

Dental Composition

Dental Restorative Kit

Polymerizable Composition

Dental Syringe

Artificial Tooth

Denture Design

Dental Gypsum Powder

Occlusion Pressure Analysis

Dental Floss Manufacturing

Dental Photopolymerization

Bioabsorbable Membrane

Dental Filling Material

303 patents: Sort by Forward Citations

1. 12502338 - Dental glass ionomer cement (2025-12-23),

2. 12497476 - Antibacterial polymer particles, composition, and article (2025-12-16),

3. 12478561 - Dental composition and dental restorative kit (2025-11-25),

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

5. 12460021 - Glass powder and chemical polymerization initiator (2025-11-04),

6. 12419726 - Method of coloring dental block and dental block (2025-09-23),

7. 12329832 - Dental polymerizable composition (2025-06-17),

8. 12324717 - Dental restorative set and method of restoring tooth (2025-06-10),

9. 12318460 - Dental polymerizable composition (2025-06-03),

10. 12258622 - Method for estimating inflammation area of periodontal pockets (2025-03-25),

11. 12252296 - Dripping container cover (2025-03-18),

12. 12220289 - Dental floss, continuous dental floss, and method for manufacturing continuous dental floss (2025-02-11),

13. 12133902 - Dental composition (2024-11-05),

14. D1046158 - Dental syringe (2024-10-08),

15. 12077615 - Method of producing polymerizable composition and polymerizable composition (2024-09-03),

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 - Dec 30 2025

303 Patents

#3 in Shizuoka

#524 in Japan

#2,862 in the World

Shizuoka, Japan

Gc Corporation

Forward Citations = 2,018

305 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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