Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933253 | Alkali-free glass and method for producing the same | Jun Naka, Toshiharu Narita, Shigeru Yamamoto | 2005-08-23 |
| 6881692 | Alkali-free glass and glass plate for a display | Takashi Murata | 2005-04-19 |