Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387833 | Sealing composition | Hiroshi Usui, Yutaka Segawa, Yuichi Kuroki, Eiji Ichikura | 2002-05-14 |
| 6355586 | Low melting point glass and glass ceramic composition | Hiroshi Usui, Yasuko Dotani, Tsuneo Manabe | 2002-03-12 |