G11B 7/00745
Sectoring or header formats within a track
Official title: {Sectoring or header formats within a track (formats in general G11B20/12)}
G11B7/00745 (Sectoring or header formats within a track) appears on 1,422 US grants and 820 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,422
- Published applications
- 820
- Assignees
- 179
- Inventors
- 1,269
- Latest grant
- 28 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 17 | 0 |
| 1990 | 15 | 0 |
| 1991 | 20 | 0 |
| 1992 | 19 | 0 |
| 1993 | 25 | 0 |
| 1994 | 19 | 0 |
| 1995 | 29 | 0 |
| 1996 | 44 | 0 |
| 1997 | 59 | 0 |
| 1998 | 82 | 0 |
| 1999 | 77 | 0 |
| 2000 | 98 | 0 |
| 2001 | 102 | 52 |
| 2002 | 106 | 144 |
| 2003 | 108 | 91 |
| 2004 | 78 | 83 |
| 2005 | 50 | 96 |
| 2006 | 111 | 58 |
| 2007 | 62 | 89 |
| 2008 | 80 | 84 |
| 2009 | 38 | 33 |
| 2010 | 37 | 22 |
| 2011 | 36 | 16 |
| 2012 | 25 | 10 |
| 2013 | 11 | 13 |
| 2014 | 11 | 8 |
| 2015 | 3 | 3 |
| 2016 | 5 | 7 |
| 2017 | 6 | 7 |
| 2018 | 8 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- High density recording medium, recording apparatus, recording method, reproducing apparatus, and reproducing method in which synchronization patterns are recorded with a shift so that positions in a track direction do not overlap28 Jan 2020US 10,546,606 B2Sony Corporation
- Optical disc having a plurality of recording layers9 Apr 2019US 10,255,941 B2Memory-Tech Holdings Inc.
- Optical information recording medium having first and second pit row of identical reflectance4 Sep 2018US 10,068,605 B2Memory-Tech Holdings Inc.
- Write-once storage medium capable of recording data blocks on both land and groove of spiral track14 Aug 2018US 10,049,697 B2Panasonic Intellectual Property Management Co., Ltd.
- Optical disk, optical disk recording method, optical disk recording device, and integrated circuit19 Jun 2018US 10,002,633 B2Panasonic Intellectual Property Management Co., Ltd.
- Disk-type recording medium, recording apparatus, recording method, reproducing apparatus, and reproducing method11 Apr 2019US 2019/0108855 A1Sony Corporation
- Optical information recording medium having first and second pit row of identical reflectance9 Aug 2018US 2018/0226097 A1Memory-Tech Holdings Inc.
- Optical disc having a plurality of recording layers21 Jun 2018US 2018/0174607 A1Memory-Tech Holdings Inc.
- Apparatus for minimizing cross track interference for optical tape1 Mar 2018US 2018/0061451 A1Oracle International Corporation
- Optical information recording medium21 Dec 2017US 2017/0365289 A1Memory-Tech Holdings Inc.
Most cited
By later US patents
- Information record medium, apparatus for recording the same and apparatus for reproducing the same353US 6,212,330 B1Pioneer Electronic Corporation · 2001
- Optical disk and optical disk reproduction apparatus318US 6,009,237 AHitachi, Ltd. · 1999
- Optical reproducing method215US 6,549,497 B2Hitachi, Ltd. · 2003
- CD-ROM disk and security check method for the same181US 5,371,792 AKabushkuki Kaisha Sega Enterprises · 1994
- Information recording medium and information reproduction system173US 5,866,895 AOlympus Optical Co., Ltd. · 1999