Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8287645 | Production process for high purity polycrystal silicon and production apparatus for the same | Shuichi Honda, Satoshi Hayashida, Masatsugu Yamaguchi, Toru Tanaka | 2012-10-16 |
| 7922814 | Production process for high purity polycrystal silicon and production apparatus for the same | Shuichi Honda, Satoshi Hayashida, Masatsugu Yamaguchi, Toru Tanaka | 2011-04-12 |
| 5028247 | Process for the preparation of silica glass powders | Muneo Asami | 1991-07-02 |