G11B 15/56
The record carrier having reserve loop
Official title: the record carrier having reserve loop, e.g. to minimise inertia during acceleration {measuring or control in connection therewith}
G11B15/56 (The record carrier having reserve loop) appears on 112 US grants and 3 published applications in this corpus.
Search patents in G11B- Granted patents
- 112
- Published applications
- 3
- Assignees
- 46
- Inventors
- 159
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Methods for increasing storage capacity and improving performance in dual-reel removable tape devices and fixed tape devices1 Oct 2024US 12,106,772 B2Western Digital Technologies, Inc.
- Tape system with an isolated load/unload tape path27 Mar 2007US 7,195,189 B2International Business Machines Corporation
- Servo writer5 Jul 2005US 6,914,741 B2Fuji Photo Film Co., Ltd.
- Writing print characteristics to magnetics-on-film21 Sep 1999US 5,956,129 AEastman Kodak Company
- Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape7 Sep 1999US 5,947,402 AMitsubishi Denki Kabushiki Kaisha
- Methods for increasing storage capacity and improving performance in dual-reel removable tape devices and fixed tape devices25 Jul 2024US 2024/0249747 A1Western Digital Technologies, Inc.
- Tape system with an isolated load/unload tape path10 Aug 2006US 2006/0175452 A1International Business Machines Corporation
- Servo writer22 Jul 2004US 2004/0141251 A1Fuji Photo Film Co., Ltd.
Most cited
By later US patents
- Variable-delay video recorder243US 5,241,428 A1993
- Single deck dual tape path VCR system150US 5,479,302 A1995
- Mechanism for damping tape vibrations in a magnetic tape recorder115US 4,825,317 ASiemens Aktiengesellschaft · 1989
- Controlling web tension by actively controlling velocity of dancer roll93US 5,659,229 AKimberly-Clark Worldwide, Inc. · 1997
- Controlling web tension by actively controlling velocity of dancer roll79US 5,602,747 AKimberly-Clark Corporation · 1997