B41J 9/26
Means for operating hammers to effect impression
B41J9/26 (Means for operating hammers to effect impression) appears on 142 US grants and 1 published applications in this corpus.
Search patents in B41J- Granted patents
- 142
- Published applications
- 1
- Assignees
- 56
- Inventors
- 213
- Latest grant
- 24 Aug 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 13 | 0 |
| 1984 | 13 | 0 |
| 1985 | 13 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Printer hammerbank with a magnetic shunt24 Aug 2004US 6,779,935 B1Printronix, Inc.
- Method of controlling reciprocal movement of hammer rank in print device15 May 2001US 6,231,250 B1Hitachi Koki Co., Ltd.
- Method and device for limiting a number of times each print hammer is driven during a predetermined period of time27 Oct 1998US 5,826,990 AHitachi Koki Co., Ltd.
- Printer integrated driver and hammerbank28 Apr 1998US 5,743,665 APrintronix, Inc.
- Printer power supply21 Jan 1997US 5,595,446 APrintronix, Inc.
Most cited
By later US patents
- Lever actuator comprising a longitudinal-effect electroexpansive transducer and designed to prevent actuation from degrading the actuator72US 4,435,666 ANippon Electric Co., Ltd. · 1984
- Printer system66US 3,941,051 APrintronix, Inc. · 1976
- Print hammer mechanism32US 4,044,668 APrintronix, Inc. · 1977
- Solenoid drive circuit30US 4,454,558 AU. S. Philips Corporation · 1984
- Printer, provided with an impact device comprising a transducer28US 4,192,230 AU. S. Philips Corporation · 1980