G11B 15/67505
Servo control
Official title: {Servo control}
G11B15/67505 (Servo control) appears on 48 US grants and 4 published applications in this corpus.
Search patents in G11B- Granted patents
- 48
- Published applications
- 4
- Assignees
- 23
- Inventors
- 57
- Latest grant
- 19 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Power improvement for minimum switching frequency operation19 Nov 2024US 12,148,446 B1Western Digital Technologies, Inc.
- Servo pattern recording method, servo pattern recording apparatus, manufacturing method for a tape-like magnetic recording medium, and tapelike magnetic recording medium24 Aug 2021US 11,100,945 B2Sony Corporation
- Magnetic tape device and magnetic reproducing method employing TMR head and magnetic tape having characterized magnetic layer19 Nov 2019US 10,482,915 B2FUJIFILM Corporation
- Magnetic tape device and head tracking servo method26 Jun 2018US 10,008,230 B1FUJIFILM Corporation
- Tape drive with cartridge thickness detecting sensors25 Oct 2011US 8,045,288 B2Hitachi Maxell, Ltd.
- Servo pattern recording method, servo pattern recording apparatus, manufacturing method for a tape-like magnetic recording medium, and tapelike magnetic recording medium25 Feb 2021US 2021/0056986 A1Sony Corporation
- Magnetic tape device and magnetic reproducing method28 Jun 2018US 2018/0182430 A1FUJIFILM Corporation
- Magnetic tape device and head tracking servo method28 Jun 2018US 2018/0182431 A1FUJIFILM Corporation
- Band-Pass Delta-Sigma Ad Modulator For Ad-Converting High Frequency Narrow Signal With Higher Precision and Lower Consumption29 Nov 2007US 2007/0274001 A1Hitachi Maxell, Ltd.
Most cited
By later US patents
- Magnetic tape device and head tracking servo method109US 10,008,230 B1FUJIFILM Corporation · 2018
- Tape drive with cartridge thickness detecting sensors95US 8,045,288 B2Hitachi Maxell, Ltd. · 2011
- Safety device for video cassette recorder39US 4,985,666 ASony Corporation · 1991
- Cassette loading and unloading device16US 4,295,169 ASanyo Electric Co., Ltd. · 1981
- Batteryless, spring-powered portable cassette player16US 5,982,577 A1999