B41J 2/275
Of clapper type
Official title: of clapper type (B41J2/28 takes precedence)
B41J2/275 (Of clapper type) appears on 157 US grants and 3 published applications in this corpus.
Search patents in B41J- Granted patents
- 157
- Published applications
- 3
- Assignees
- 56
- Inventors
- 183
- Latest grant
- 19 Aug 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 19 | 0 |
| 1987 | 15 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 17 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Armature damper, method of manufacturing armature damper, and dot head19 Aug 2008US 7,413,358 B2Toshiba Tec Kabushiki Kaisha
- Wire dot printer head and wire dot printer1 Feb 2005US 6,848,843 B1Toshiba Tec Kabushiki Kaisha
- Wire dot printer head and wire dot printer19 Oct 2004US 6,805,503 B1Toshiba Tec Kabushiki Kaisha
- Impact dot print head and a printer including the same17 Aug 2004US 6,776,545 B1Toshiba Tec Kabushiki Kaisha
- Printing head having a armature backstop11 Jun 1996US 5,524,991 ACitizen Watch Co., Ltd.
- Print head of printer and gap spacer used for print head10 Sep 2009US 2009/0226233 A1Seiko Precision Inc.
- Method and apparatus for perforating a printable surface10 Jul 2008US 2008/0166166 A1
- Armature damper, method of manufacturing armature damper, and dot head22 Mar 2007US 2007/0065212 A1Toshiba Tec Kabushiki Kaisha
Most cited
By later US patents
- Dot printer head26US 4,244,658 AKabushiki Kaisha Suwa Seikosha · 1981
- Dot matrix printers and print heads therefor26US 4,552,064 A1985
- Mosaic printing head24US 4,009,772 ASteinmetz Krischke Systemtechnik GmbH · 1977
- Ballistic wire matrix print head22US 4,407,591 AIng. C. Olivetti & C., S.p.A. · 1983
- Serial printer22US 4,452,542 AEpson Corporation · 1984