Kotaro SUMI

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Sasebo-shi Nagasaki, JP

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Patents Applicationslast 30 patents

Information Patent Application
LARGE-SIZED HOLLOW POROUS QUARTZ GLASS PREFORM AND METHOD OF MANUFA...
- Publication number 20220017404
- Publication date Jan 20, 2022
- Shin-Etsu Quartz Products Co., Ltd.
- Kotaro SUMI
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
METHOD FOR PRODUCING HOLLOW POROUS QUARTZ GLASS BASE MATERIAL
- Publication number 20200270162
- Publication date Aug 27, 2020
- Shin-Etsu Quartz Products Co., Ltd.
- Kotaro SUMI
- C03 - GLASS MINERAL OR SLAG WOOL