G11B 7/00454
Involving phase-change effects
Official title: {involving phase-change effects}
G11B7/00454 (Involving phase-change effects) appears on 609 US grants and 447 published applications in this corpus.
Search patents in G11B- Granted patents
- 609
- Published applications
- 447
- Assignees
- 110
- Inventors
- 786
- Latest grant
- 12 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 17 | 0 |
| 1997 | 21 | 0 |
| 1998 | 27 | 0 |
| 1999 | 26 | 0 |
| 2000 | 47 | 0 |
| 2001 | 33 | 19 |
| 2002 | 46 | 69 |
| 2003 | 28 | 40 |
| 2004 | 37 | 59 |
| 2005 | 26 | 61 |
| 2006 | 43 | 57 |
| 2007 | 32 | 42 |
| 2008 | 44 | 23 |
| 2009 | 30 | 23 |
| 2010 | 23 | 24 |
| 2011 | 33 | 9 |
| 2012 | 11 | 6 |
| 2013 | 5 | 1 |
| 2014 | 4 | 2 |
| 2015 | 4 | 5 |
| 2016 | 2 | 0 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical memory, optical diffraction element, and recording method12 Nov 2024US 12,142,307 B2Fujikura Ltd.
- Information recording device, information playback device, information recording medium and method for multi-values recording optical disc7 Jun 2022US 11,355,149 B2Sony Corporation
- Optical memory devices using a silicon wire grid polarizer and methods of making and using19 Apr 2022US 11,308,987 B2Wostec, Inc.
- Optical memory devices using a silicon wire grid polarizer and methods of making and using15 Jun 2021US 11,037,595 B2Wostec, Inc.
- Optical memory devices using a silicon wire grid polarizer and methods of making and using2 Jun 2020US 10,672,427 B2Wostec, Inc.
- Optical memory, optical diffraction element, and recording method1 Feb 2024US 2024/0038264 A1Fujikura Ltd.
- Optical memory devices using a silicon wire grid polarizer and methods of making and using30 Sep 2021US 2021/0304792 A1Wostec, Inc.
- Information recording device, information playback device, information recording medium, method, and program19 Aug 2021US 2021/0257000 A1Sony Corporation
- Optical memory devices using a silicon wire grid polarizer and methods of making and using17 Sep 2020US 2020/0294542 A1Wostec, Inc.
- Optical memory devices using a silicon wire grid polarizer and methods of making and using28 Nov 2019US 2019/0362755 A1Wostec, Inc.
Most cited
By later US patents
- Optical recording medium having a plurality of discrete phase change data recording points198US 5,591,501 AEnergy Conversion Devices, Inc. · 1997
- Data storage medium incorporating a transition metal for increased switching speed191US 4,710,899 AEnergy Conversion Devices, Inc. · 1987
- Phase change memory and phase change recording medium147US 7,126,149 B2Renesas Technology Corp. · 2006
- Optical recording medium, data recording method for rewritable-type phase change type optical disc, data erase method for rewritable compact disc, data erase method for rewritable phase change type recording medium, read only data erase method, and recording/readout apparatus121US 6,671,249 B2Mitsubishi Chemical Corporation · 2003
- Information recording apparatus, method and computer program product116US 5,732,062 ARicoh Company, Ltd. · 1998