Method for producing hollow porous quartz glass base material
US-11401192-B2 · Aug 2, 2022 · US
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Sumi Kotaro patents
Sumi Kotaro is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Sumi Kotaro |
| Total patents | 2 |
| First publication | Aug 27, 2020 |
| Latest publication | Aug 2, 2022 |
Notable patents
Publications ranked by popularity score, then publication date.
Method for producing hollow porous quartz glass base material
US-2020270162-A1 · Aug 27, 2020 · US
Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Heraeus Quarzglas | 2 |
| Shin Etsu Quartz Prod Co Ltd | 1 |
| Heraeus Deutschland Gmbh & Co Kg | 1 |
| Shin-Etsu Quartz Products Co Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C03C3/06 | 2 |
| C03B15/14 | 2 |
| C03B19/1492 | 2 |
| C03B20/00 | 2 |
| C03B37/01493 | 2 |