G11B 5/00
Recording by magnetisation or demagnetisation of a record carrier
Official title: Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 {and G11B13/00} take precedence)
G11B5/00 (Recording by magnetisation or demagnetisation of a record carrier) appears on 43,699 US grants and 25,244 published applications in this corpus.
Search patents in G11B- Granted patents
- 43,699
- Published applications
- 25,244
- Assignees
- 2,722
- Inventors
- 32,465
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 195 | 0 |
| 1977 | 202 | 0 |
| 1978 | 211 | 0 |
| 1979 | 194 | 0 |
| 1980 | 204 | 0 |
| 1981 | 268 | 0 |
| 1982 | 268 | 0 |
| 1983 | 358 | 0 |
| 1984 | 365 | 0 |
| 1985 | 437 | 0 |
| 1986 | 511 | 0 |
| 1987 | 739 | 0 |
| 1988 | 599 | 0 |
| 1989 | 724 | 0 |
| 1990 | 539 | 0 |
| 1991 | 660 | 0 |
| 1992 | 637 | 0 |
| 1993 | 624 | 0 |
| 1994 | 669 | 0 |
| 1995 | 741 | 0 |
| 1996 | 826 | 0 |
| 1997 | 904 | 0 |
| 1998 | 1358 | 0 |
| 1999 | 1377 | 0 |
| 2000 | 1483 | 0 |
| 2001 | 1439 | 621 |
| 2002 | 1506 | 1736 |
| 2003 | 1640 | 1704 |
| 2004 | 1807 | 1773 |
| 2005 | 1388 | 2020 |
| 2006 | 1775 | 1746 |
| 2007 | 1403 | 1584 |
| 2008 | 1297 | 1575 |
| 2009 | 1306 | 1527 |
| 2010 | 1304 | 1375 |
| 2011 | 1340 | 1058 |
| 2012 | 1453 | 997 |
| 2013 | 1317 | 900 |
| 2014 | 1538 | 914 |
| 2015 | 1462 | 901 |
| 2016 | 1050 | 650 |
| 2017 | 843 | 539 |
| 2018 | 726 | 487 |
| 2019 | 641 | 473 |
| 2020 | 681 | 464 |
| 2021 | 576 | 451 |
| 2022 | 553 | 372 |
| 2023 | 441 | 413 |
| 2024 | 441 | 409 |
| 2025 | 401 | 315 |
| 2026 | 278 | 240 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 5/48Disposition or mounting of heads or head supports relative to record carriers19,259
- G11B 5/127Structure or manufacture of heads13,441
- G11B 5/62Record carriers characterised by the selection of the material7,134
- G11B 2005/0002Special dispositions or recording techniquesIndexing code4,881
- G11B 5/02Recording, reproducing, or erasing methods3,979
- G11B 5/84Processes or apparatus specially adapted for manufacturing record carriers3,944
- G11B 5/012Recording on, or reproducing or erasing from, magnetic disks3,564
- G11B 5/008Recording on, or reproducing or erasing from, magnetic tapes, sheets2,750
All 16 subgroupsShow fewer
- G11B 5/74Record carriers characterised by the form2,433
- G11B 5/10Structure or manufacture of housings or shields for heads1,824
- G11B 5/40Protective measures on heads1,401
- G11B 5/455Arrangements for functional testing of heads986
- G11B 5/86Re-recording, i.e. transcribing information from one magnetisable record carrier on to one701
- G11B 5/41Cleaning of heads441
- G11B 5/465Arrangements for demagnetisation of heads100
- G11B 5/004Recording on, or reproducing or erasing from, magnetic drums19
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Most cited
By later US patents
- Class AB H-bridge using current sensing MOSFETs1,035US 6,445,530 B1Seagate Technology LLC · 2002
- Method for manufacturing porous structure and method for forming pattern645US 6,565,763 B1Kabushiki Kaisha Toshiba · 2003
- System and method for storing redundant information645US 7,840,537 B2Commvault Systems, Inc. · 2010
- Heterogeneous display elements and methods for their fabrication562US 6,241,921 B1Massachusetts Institute of Technology · 2001
- Digital video recorder compatible receiver with trick play image enhancement527US 5,377,051 AHitachi America, Ltd. · 1994