Masami Fujii

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Yamaguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing polycrystalline silicon fragment and polyc...
- Patent number 11,590,509
- Issue date Feb 28, 2023
- Tokuyama Corporation
- Kazuhiro Kawaguchi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Polycrystalline silicon fragment, method for manufacturing polycrys...
- Patent number 10,307,763
- Issue date Jun 4, 2019
- Tokuyama Corporation
- Kazuhiro Kawaguchi
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
SEALING DEVICE, DEVICE FOR PRODUCING POLYCRYSTALLINE SILICON FILLER...
- Publication number 20240043153
- Publication date Feb 8, 2024
- Tokuyama Corporation
- Yasuhiro MIZUTANI
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Polycrystalline Silicon Fragment, Method for Manufacturing Polycrys...
- Publication number 20190240669
- Publication date Aug 8, 2019
- Tokuyama Corporation
- Kazuhiro Kawaguchi
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
Polycrystalline Silicon Fragment, Method for Manufacturing Polycrys...
- Publication number 20170239666
- Publication date Aug 24, 2017
- Tokuyama Corporation
- Kazuhiro Kawaguchi
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Application
Device For Producing Cleaned Crushed Product Of Polycrystalline Sil...
- Publication number 20160339485
- Publication date Nov 24, 2016
- Tokuyama Corporation
- Shigeki Nishimura
- B08 - CLEANING