Issued Patents All Time
Showing 1–7 of 7 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, Shigeki Obana | 2002-06-25 |
| 6360499 | Sheet glass attaching construction | — | 2002-03-26 |
| 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, Shigeki Obana | 2002-02-05 |
| 6054401 | Fireproof sheet glass | Akihiro Koyama, Tetsuro Yoshii | 2000-04-25 |
| 6004655 | 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, Shigeki Obana | 1999-12-21 |
| 5939175 | Method of finishing heat-reinforced plate glass and edge regions thereof | — | 1999-08-17 |
| 5670222 | Attachment construction for sheet glass | Keisuke Tanaka | 1997-09-23 |