G11B 7/258
Of reflective layers
Official title: of reflective layers
G11B7/258 (Of reflective layers) appears on 1,551 US grants and 1,267 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,551
- Published applications
- 1,267
- Assignees
- 281
- Inventors
- 2,241
- Latest grant
- 8 Jan 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 11 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 9 | 0 |
| 1984 | 10 | 0 |
| 1985 | 17 | 0 |
| 1986 | 12 | 0 |
| 1987 | 19 | 0 |
| 1988 | 12 | 0 |
| 1989 | 15 | 0 |
| 1990 | 16 | 0 |
| 1991 | 24 | 0 |
| 1992 | 21 | 0 |
| 1993 | 49 | 0 |
| 1994 | 39 | 0 |
| 1995 | 51 | 0 |
| 1996 | 35 | 0 |
| 1997 | 46 | 0 |
| 1998 | 42 | 0 |
| 1999 | 69 | 0 |
| 2000 | 63 | 0 |
| 2001 | 86 | 46 |
| 2002 | 79 | 127 |
| 2003 | 96 | 149 |
| 2004 | 94 | 145 |
| 2005 | 90 | 153 |
| 2006 | 83 | 152 |
| 2007 | 61 | 117 |
| 2008 | 72 | 95 |
| 2009 | 55 | 76 |
| 2010 | 51 | 81 |
| 2011 | 51 | 44 |
| 2012 | 72 | 19 |
| 2013 | 29 | 10 |
| 2014 | 37 | 46 |
| 2015 | 13 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Optical recording medium8 Jan 2019US 10,176,839 B2Sony Corporation
- Optical medium reproducing apparatus, optical medium reproducing method, and optical medium3 Jul 2018US 10,014,023 B2Sony Corporation
- Optical recording medium6 Jun 2017US 9,672,861 B2Sony Corporation
- Write once read forever archival data storage3 May 2016US 9,330,706 B1
- Process and apparatus for producing optical recording medium24 Nov 2015US 9,196,288 B2Mitsubishi Kagaku Media Co., Ltd.
- Optical disk, method of manufacturing same, optical information device, and information processing method21 Oct 2021US 2021/0327466 A1Panasonic Intellectual Property Management Co., Ltd.
- Read-only optical information recording medium and sputtering target for forming reflection film of said optical information recording medium28 May 2020US 2020/0168248 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Optical recording medium15 Feb 2018US 2018/0047423 A1Sony Corporation
- Optical medium reproducing apparatus, optical medium reproducing method, and optical medium21 Sep 2017US 2017/0270957 A1Sony Corporation
- Multi-stack optical storage mediu24 Nov 2016US 2016/0343398 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium220US 6,280,684 B1Ricoh Company, Ltd. · 2001
- Optical recording medium having a plurality of discrete phase change data recording points198US 5,591,501 AEnergy Conversion Devices, Inc. · 1997
- Optical recording media having increased erasability172US 6,011,757 A2000
- Multi-layered recording disk and recording/reproducing system using the same155US 5,608,715 APioneer Electronic Corporation · 1997
- Multilayer optical record94US 4,097,895 ARCA Corporation · 1978