Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6732546 | Product method of synthetic silica glass and thermal treatment apparatus | Hiroyuki Hiraiwa, Yasuji Ishida | 2004-05-11 |
| 6044664 | Synthetic silica glass manufacturing apparatus | Norihisa Yamaguchi, Kazuhiro Nakagawa, Hiroki Jinbo | 2000-04-04 |
| 6018964 | Method for manufacturing quartz glass | Hiroki Jinbo | 2000-02-01 |
| 5958809 | Fluorine-containing silica glass | Seishi Fujiwara, Hiroyuki Hiraiwa, Kazuhiro Nakagawa, Norio Komine, Hiroki Jinbo | 1999-09-28 |