G11B 21/103
On tapes
Official title: {on tapes}
G11B21/103 (On tapes) appears on 105 US grants and 29 published applications in this corpus.
Search patents in G11B- Granted patents
- 105
- Published applications
- 29
- Assignees
- 36
- Inventors
- 161
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 4 | 5 |
| 2015 | 1 | 0 |
| 2016 | 3 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 3 | 4 |
| 2023 | 2 | 5 |
| 2024 | 4 | 2 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Head driving device configured to move a head member relative to tape as a recording medium and configured to stably hold the head member25 Nov 2025US 12,482,495 B2NHK Spring Co., Ltd.
- Magnetic tape cartridge, magnetic tape drive, memory, magnetic tape, magnetic tape system, and operation method of magnetic tape drive11 Feb 2025US 12,223,987 B2FUJIFILM Corporation
- Servo writer and cartridge14 Jan 2025US 12,198,739 B2Sony Group Corporation
- Tape drive having independently controlled tilting tandem tape heads31 Dec 2024US 12,183,367 B2Western Digital Technologies, Inc.
- TDS mitigation using different data preamble tones9 Jul 2024US 12,033,664 B2Western Digital Technologies, Inc.
- Head driving device configured to move a head member relative to tape as a recording medium and configured to stably hold the head member26 Feb 2026US 2026/0057907 A1NHK Spring Co., Ltd.
- Head driving device21 Nov 2024US 2024/0386907 A1NHK Spring Co., Ltd.
- Tape Drive Having Independently Controlled Tilting Tandem Tape Heads30 May 2024US 2024/0177737 A1Western Digital Technologies, Inc.
- TDS Mitigation Using Different Data Preamble Tones28 Dec 2023US 2023/0419995 A1Western Digital Technologies, Inc.
- Tape Drive Having Independently Controlled Tilting Tandem Tape Heads14 Sep 2023US 2023/0290377 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Method for forming a servo pattern on a magnetic tape113US 7,029,726 B1Quantum Corporation · 2006
- Pivoting lever cam guide tape head positioner62US 6,075,678 AQuantum Corporation · 2000
- Method and apparatus for pre-recording tracking information on magnetic media59US 4,586,094 AIrwin Magnetic Systems, Inc. · 1986
- Optical servo system for a tape drive48US 6,084,740 AStorage Technology Corporation · 2000
- Optical servo system for a tape drive34US 6,236,529 B1Storage Technology Corporation · 2001