| Type | Equivalent | Publication No. | Date | Type | JP3200091B | Global Dossier
| 20.08.2001 | B2 | JPH0592374 | 16.04.1993 | A | Priority number | Date | DE4018284 | 07.06.1990 | Type | Equivalent | Publication No. | Date | Type | EP0463344 | Global Dossier
| 27.07.1994 | B1 | EP0463344 | 18.03.1992 | A3 | EP0463344 | 02.01.1992 | A2 | Priority number | Date | DE4018284 | 07.06.1990 | Type | Equivalent | Publication No. | Date | Type | DE4018284 | 18.04.1991 | C1 | Priority number | Date | DE4018284 | 07.06.1990 | Type | Equivalent | Publication No. | Date | Type | US5171004 | 15.12.1992 | A | Priority number | Date | DE4018284 | 07.06.1990 |