Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330941 | Quartz glass substrate for polysilicon thin film transistor liquid crystal display | Susumu Yaba, Yukinori Ohta | 1994-07-19 |
| 5326729 | Transparent quartz glass and process for its production | Susumu Yaba | 1994-07-05 |