B41J 9/00
Hammer-impression mechanisms
B41J9/00 (Hammer-impression mechanisms) appears on 436 US grants and 10 published applications in this corpus.
Search patents in B41J- Granted patents
- 436
- Published applications
- 10
- Assignees
- 114
- Inventors
- 538
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 24 | 0 |
| 1978 | 15 | 0 |
| 1979 | 11 | 0 |
| 1980 | 18 | 0 |
| 1981 | 22 | 0 |
| 1982 | 23 | 0 |
| 1983 | 31 | 0 |
| 1984 | 26 | 0 |
| 1985 | 34 | 0 |
| 1986 | 18 | 0 |
| 1987 | 25 | 0 |
| 1988 | 25 | 0 |
| 1989 | 29 | 0 |
| 1990 | 9 | 0 |
| 1991 | 17 | 0 |
| 1992 | 20 | 0 |
| 1993 | 17 | 0 |
| 1994 | 10 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- B41J 9/02Hammers168
- B41J 9/26Means for operating hammers to effect impression142
- B41J 9/44Control for hammer-impression mechanisms133
- B41J 9/42Hammer-impression mechanisms: with anti-rebound arrangements38
- B41J 9/16Means for cocking or resetting hammers20
- B41J 9/14Means for selecting or suppressing individual hammers5
Recent patents
- Adaptive ribbon speed control systems and methods28 Jan 2025US 12,208,635 B2Printronix, Inc.
- Printer4 Aug 2020US 10,730,314 B2Seiko Epson Corporation
- Printer13 Nov 2018US 10,124,612 B2Toshiba Tec Kabushiki Kaisha
- Printer6 Mar 2018US 9,908,349 B2Toshiba Tec Kabushiki Kaisha
- Line printer hammer banks29 Jul 2014US 8,789,922 B2Printronix, Inc.
- Adaptive ribbon speed control systems and methods10 Apr 2025US 2025/0115069 A1Printronix, Inc.
- Adaptive ribbon speed control systems and methods10 Apr 2025US 2025/0115070 A1Printronix, Inc.
- Adaptive ribbon speed control systems and methods29 Aug 2024US 2024/0286423 A1Printronix, Inc.
- Printer28 Jun 2018US 2018/0178545 A1Seiko Epson Corporation
- Printer15 Feb 2018US 2018/0043712 A1Toshiba Tec Kabushiki Kaisha
Most cited
By later US patents
- Ink ribbon cassette including means for identifying the type of ink ribbon contained therein and containing an ink ribbon having end indication means108US 4,880,325 ACanon Kabushiki Kaisha · 1989
- 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
- Full field MICR encoder45US 4,624,588 AMaverick Microsystems, Inc. · 1986
- Rotary wheel printing system37US 4,118,129 AQume Corporation · 1978