Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6718799 | Die and glass material for forming glass substrate, method for manufacturing glass substrate, and magnetic disk glass substrate | Kazuaki Takagi, Kunio Hibino, Tomokazu Tokunaga, Minoru Onoda | 2004-04-13 |
| 6539750 | Glass substrate forming mold and production method for glass substrate | Kazuaki Takagi, Kunio Hibino, Tomokazu Tokunaga, Minoru Onoda | 2003-04-01 |