G11B 15/473
By controlling the speed of the heads
Official title: by controlling the speed of the heads
G11B15/473 (By controlling the speed of the heads) appears on 161 US grants and 12 published applications in this corpus.
Search patents in G11B- Granted patents
- 161
- Published applications
- 12
- Assignees
- 37
- Inventors
- 256
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 12 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 14 | 0 |
| 1998 | 19 | 0 |
| 1999 | 13 | 0 |
| 2000 | 10 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 1 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 4 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Restricted transport storage cartridges27 May 2025US 12,314,612 B2Hewlett Packard Enterprise Development LP
- Split actuator drive that limits slew rate of aggressor VCM to reduce victim disturbances19 Nov 2024US 12,148,456 B2Kabushiki Kaisha Toshiba
- Split actuator drive that limits slew rate of aggressor VCM to reduce victim disturbances28 Mar 2023US 11,615,811 B2Kabushiki Kaisha Toshiba
- Magnetic tape having characterized magnetic layer and magnetic recording and reproducing device24 Dec 2019US 10,515,657 B2FUJIFILM Corporation
- Extending usable life of magnetic storage media1 May 2018US 9,959,892 B1International Business Machines Corporation
- Split actuator drive that limits slew rate of aggressor vcm to reduce victim disturbances27 Jul 2023US 2023/0238024 A1Kabushiki Kaisha Toshiba
- Split actuator drive that limits slew rate of aggressor vcm to reduce victim disturbances2 Mar 2023US 2023/0061685 A1Kabushiki Kaisha Toshiba
- Restricted transport storage cartridges3 Feb 2022US 2022/0035575 A1Hewlett Packard Enterprise Development LP
- Magnetic tape and magnetic recording and reproducing device4 Apr 2019US 2019/0103130 A1FUJIFILM Corporation
- Input-output circuit, recording apparatus and reproduction apparatus for digital video signal4 Feb 2010US 2010/0027962 A1Hitachi Consumer Electronics Co., Ltd.
Most cited
By later US patents
- Disk drive employing spindle motor commutation time variation for reducing acoustic noise144US 6,493,169 B1Western Digital Technologies, Inc. · 2002
- Transmission, recording and reproduction of digital data and time information in transport packets using a compression ratio69US 5,835,668 ASony Corporation · 1998
- Digital signal recording apparatus67US 5,063,453 ACanon Kabushiki Kaisha · 1991
- Packet data system recording time stamps and packet data on tracks formed on a storage medium in synchronism with changes in time stamp values52US 6,011,899 AVictor Company of Japan, Ltd. · 2000
- Electronically commutated DC machine and use thereof49US 4,763,053 A1988