For the Inventor, By the Inventor

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Kitakyushushi, Japan

Agc Si-tech Co., Ltd.

USPTO Granted Patents = 5

EPO Patents = 2

Trademarks = 4

Forward Citations = 4

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11 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 20 patents)

4. Hiroyuki Kamiya (2 out of 2 patents)

5. Yusuke Arai (1 out of 52 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. Kim Hyunji (0 patent)

10. Matsubara Toshiya (0 patent)

11. Kamiya Hiroyuki (0 patent)

5 patents: Sort by Forward Citations

1. 12459826 - Hollow silica particles and method for manufacturing hollow silica particles (2025-11-04),

2. 12157673 - Method for producing hollow silica particles (2024-12-03),

3. 11608273 - Method for producing hollow silica particles (2023-03-21),

4. 9192914 - Silica spheres and affinity carrier (2015-11-24),

5. 8603412 - Microchannel structure, and methods for producing emulsion and solid spherical particles (2013-12-10),

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USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#2 in Kitakyushushi

#6,487 in Japan

Kitakyushushi, Japan

Agc Si-tech Co., Ltd.

Forward Citations = 4

11 inventors:

Toshiya Matsubara (3 out of 3 patents)

Hyunji Kim (3 out of 3 patents)

Hajime Katayama (2 out of 20 patents)

4. Hiroyuki Kamiya (2 out of 2 patents)

5. Yusuke Arai (1 out of 52 patents)

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