EPO Patents = 2

Trademarks = 3

Forward Citations = 5

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9 inventors (with patents filed for the assignee):

Toshiya Matsubara (3 out of 3 patents)

Hyunji Kim (3 out of 3 patents)

Hajime Katayama (2 out of 23 patents)

4. Hiroyuki Kamiya (2 out of 2 patents)

5. Yusuke Arai (1 out of 54 patents)

6. Hiroyoshi Miyahara (1 out of 1 patent)

7. Ryou Nakashima (1 out of 1 patent)

8. Kenji Higashi (1 out of 1 patent)

9. Takeshi Murakami (1 out of 1 patent)

10. Kim Hyunji (0 patent)

11. Matsubara Toshiya (0 patent)

12. Kamiya Hiroyuki (0 patent)

6 patents: Sort by Forward Citations

1. 12521323 - Hydroxyapatite-supporting porous silica particles, method for producing hydroxyapatite-supporting porous silica particles, and composition comprising hydroxyapatite-supporting porous silica particles (2026-01-13),

2. 12459826 - Hollow silica particles and method for manufacturing hollow silica particles (2025-11-04),

3. 12157673 - Method for producing hollow silica particles (2024-12-03),

4. 11608273 - Method for producing hollow silica particles (2023-03-21),

5. 9192914 - Silica spheres and affinity carrier (2015-11-24),

6. 8603412 - Microchannel structure, and methods for producing emulsion and solid spherical particles (2013-12-10),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#10 in Kitakyushu

#5,990 in Japan

Kitakyushu, Japan

Agc Si-Tech Co., Ltd.

Forward Citations = 5

9 inventors:

Toshiya Matsubara (3 out of 3 patents)

Hyunji Kim (3 out of 3 patents)

Hajime Katayama (2 out of 23 patents)

4. Hiroyuki Kamiya (2 out of 2 patents)

5. Yusuke Arai (1 out of 54 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Agc Si-Tech Co., Ltd.. Retrieved from https://idiyas.com/company/agc-si-tech-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]

2 patents (EPO):

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]