G11B 7/00375
Arrangements for detection of physical defects
Official title: {arrangements for detection of physical defects, e.g. of recording layer}
G11B7/00375 (Arrangements for detection of physical defects) appears on 345 US grants and 318 published applications in this corpus.
Search patents in G11B- Granted patents
- 345
- Published applications
- 318
- Assignees
- 101
- Inventors
- 586
- Latest grant
- 18 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 15 | 9 |
| 2002 | 5 | 19 |
| 2003 | 10 | 10 |
| 2004 | 8 | 29 |
| 2005 | 12 | 40 |
| 2006 | 18 | 42 |
| 2007 | 22 | 37 |
| 2008 | 39 | 77 |
| 2009 | 35 | 12 |
| 2010 | 27 | 23 |
| 2011 | 27 | 6 |
| 2012 | 18 | 3 |
| 2013 | 8 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 4 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical disc device and recording and reproduction device18 Jun 2024US 12,014,761 B2Panasonic Intellectual Property Management Co., Ltd.
- Drawing method, erasing method, and drawing apparatus16 Aug 2022US 11,413,878 B2Sony Corporation
- 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 recording medium having condition management area for managing the recording condition of management information8 May 2018US 9,966,097 B2Panasonic Intellectual Property Management Co., Ltd.
- Inspection method for optical disc1 May 2018US 9,959,901 B1Panasonic Intellectual Property Management Co., Ltd.
- Optical disc device and recording and reproduction device18 Jan 2024US 2024/0021214 A1Panasonic Intellectual Property Management Co., Ltd.
- Drawing method, erasing method, and drawing apparatus2 Dec 2021US 2021/0370688 A1Sony Corporation
- Inspection method for optical disc12 Apr 2018US 2018/0102139 A1Panasonic Intellectual Property Management Co., Ltd.
- Information recording method, information recording device, and information recording medium20 Jul 2017US 2017/0206923 A1Panasonic Intellectual Property Management Co., Ltd.
- Information recording method, information recording device, and information recording medium9 Feb 2017US 2017/0040033 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Control system for compact disc phonograph195US 6,212,138 B1Rowe International, Inc. · 2001
- Disk recording method and apparatus for indentifying and skipping defective clusters104US 5,553,045 ASony Corporation · 1996
- Method and apparatus for scanning a recording medium for defects75US 4,571,716 ADiscovision Associates · 1986
- Defect inspecting apparatus for disc-shaped information recording media75US 5,212,677 AMitsubishi Denki Kabushiki Kaisha · 1993
- Method and apparatus for identifying and skipping defective sections75US 6,058,085 ASony Corporation · 2000