Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8689586 | Glass-melting device for producing glass fiber and method for producing glass fiber | Norio Hirayama, Naohiro Miyanaga, Masahiko Takahashi | 2014-04-08 |
| 8689588 | Glass-melting device for producing glass fiber and method for producing glass fiber using same | Norio Hirayama, Masahiko Takahashi, Naohiro Miyanaga | 2014-04-08 |