| 5002863 |
Naphtholactamtrimethine dyes and optical recording medium containing same |
Matthias Dust, Peter Neumann, Michael Acker, Klaus D. Schomann, Harald Kuppelmaier |
1991-03-26 |
| 4939012 |
Naphtholactam dyes and optical recording medium containing these dyes |
Matthias Dust, Peter Neumann, Ernst Schefczik, Helmut Barzynski, Klaus D. Schomann +2 more |
1990-07-03 |
| 4904566 |
Optical recording medium containing an azulenium dye |
Wolfgang Schrott, Bernhard Albert, Peter Neumann |
1990-02-27 |
| 4876356 |
Naphtholactam dyes and optical recording medium containing these days |
Matthias Dust, Peter Neumann, Ernst Schefczik, Helmut Barzynski, Klaus D. Schomann +2 more |
1989-10-24 |
| 4830951 |
Naphtholactamsquaric acid dyes and optical recording materials containing these dyes |
Matthias Dust, Peter Neumann, Peter Hauser, Gerhard Wagenblast, Helmut Barzynski +2 more |
1989-05-16 |
