Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6793977 | Method of manufacturing a display plate and display apparatus | Sachio Kasahara, Akio Magario, Koichi Karasawa | 2004-09-21 |
| 6599613 | Primitive display plate and method of manufacturing display plate and display apparatus | Sachio Kasahara, Akio Magario, Koichi Karasawa | 2003-07-29 |
| 5669304 | Stamp unit and method of preparing stamp unit | Hiroshi Kuriyama, Youichi Kodaira, Hideki Horiuochi | 1997-09-23 |