G11B 20/1202
With longitudinal tracks only
Official title: {with longitudinal tracks only}
G11B20/1202 (With longitudinal tracks only) appears on 159 US grants and 65 published applications in this corpus.
Search patents in G11B- Granted patents
- 159
- Published applications
- 65
- Assignees
- 53
- Inventors
- 242
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 3 |
| 2003 | 3 | 1 |
| 2004 | 3 | 3 |
| 2005 | 3 | 3 |
| 2006 | 3 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 4 | 3 |
| 2015 | 10 | 12 |
| 2016 | 10 | 7 |
| 2017 | 4 | 5 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 6 | 6 |
| 2021 | 5 | 5 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Recalling data from tape7 Jan 2025US 12,190,910 B1International Business Machines Corporation
- Write data management10 Dec 2024US 12,165,674 B1International Business Machines Corporation
- Servo pattern recording method, servo pattern recording apparatus, method of producing tape-like magnetic recording medium, tape-like magnetic recording medium, and servo write head5 Nov 2024US 12,136,437 B2Sony Group Corporation
- Tape-shaped magnetic recording medium and cartridge16 May 2023US 11,651,781 B2Sony Group Corporation
- Data storage device demodulating servo stripes using matched filter1 Nov 2022US 11,488,626 B2Western Digital Technologies, Inc.
- Servo pattern recording method, servo pattern recording apparatus, method of producing tape-like magnetic recording medium, tape-like magnetic recording medium, and servo write head9 May 2024US 2024/0153535 A1Sony Group Corporation
- Magnetic recording medium and cartridge12 May 2022US 2022/0148618 A1Sony Group Corporation
- Data storage device demodulating servo stripes using matched filter7 Apr 2022US 2022/0108722 A1Western Digital Technologies, Inc.
- Recording device, recording method, recording program, and magnetic tape11 Nov 2021US 2021/0350824 A1FUJIFILM Corporation
- Tape-creep detection via frequency domain data29 Apr 2021US 2021/0125632 A1International Business Machines Corporation
Most cited
By later US patents
- Data integrity for compaction devices113US 5,167,034 AInternational Business Machines Corporation · 1992
- Robust metric computation of longitudinal position (LPOS) data symbol detection113US 8,576,510 B2International Business Machines Corporation · 2013
- Format and method for recording optimization92US 5,485,321 AStorage Technology Corporation · 1996
- Dynamic control of magnetic tape drive74US 5,892,633 AExabyte Corporation · 1999
- Large angle azimuth recording and head configurations50US 6,947,247 B2Advanced Research Corporation · 2005