Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6408578 | Method of finishing edge of sheet glass, heat-tempered sheet glass using the method, and fire-resistant construction material using the heat-tempered sheet glass | Keisuke Tanaka, Kiminari Sugiura | 2002-06-25 |
| 6344259 | Method of finishing edge of sheet glass, heat-tempered sheet glass using the method, and fire resistant construction material using the heat-tempered sheet glass | Keisuke Tanaka, Kiminari Sugiura | 2002-02-05 |