Yuma Negishi

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Fukuchiyama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydrophobic silica powder
- Patent number 11,691,885
- Issue date Jul 4, 2023
- Fuso Chemical Co., Ltd.
- Kazui Omokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
COLLOIDAL SILICA AND PRODUCTION METHOD THEREFOR
- Publication number 20220177318
- Publication date Jun 9, 2022
- FUSO CHEMICAL CO., LTD.
- Hideki Otsuki
- C01 - INORGANIC CHEMISTRY
Information Patent Application
COLLOIDAL SILICA AND METHOD FOR PRODUCING SAME
- Publication number 20220144649
- Publication date May 12, 2022
- FUSO CHEMICAL CO., LTD.
- Yuma Negishi
- C01 - INORGANIC CHEMISTRY
Information Patent Application
HYDROPHOBIC SILICA POWDER AND TONER RESIN PARTICLE
- Publication number 20220128914
- Publication date Apr 28, 2022
- FUSO CHEMICAL CO., LTD.
- Kazui Omokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HYDROPHOBIC SILICA POWDER
- Publication number 20210061667
- Publication date Mar 4, 2021
- FUSO CHEMICAL CO., LTD.
- Kazui Omokawa
- C01 - INORGANIC CHEMISTRY