G11B 7/00557
Involving phase-change media
Official title: {involving phase-change media}
G11B7/00557 (Involving phase-change media) appears on 244 US grants and 86 published applications in this corpus.
Search patents in G11B- Granted patents
- 244
- Published applications
- 86
- Assignees
- 56
- Inventors
- 338
- Latest grant
- 5 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 17 | 0 |
| 1994 | 7 | 0 |
| 1995 | 15 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 15 | 0 |
| 2000 | 16 | 0 |
| 2001 | 13 | 7 |
| 2002 | 7 | 11 |
| 2003 | 10 | 11 |
| 2004 | 12 | 10 |
| 2005 | 4 | 16 |
| 2006 | 10 | 9 |
| 2007 | 5 | 6 |
| 2008 | 14 | 5 |
| 2009 | 4 | 2 |
| 2010 | 7 | 5 |
| 2011 | 6 | 2 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Information recording device and data erasing method5 May 2020US 10,643,650 B2Panasonic Intellectual Property Management Co., Ltd.
- Optical recording medium8 Jan 2019US 10,176,839 B2Sony Corporation
- Heater and memory cell, memory device and recording head including the heater5 Aug 2014US 8,796,596 B2International Business Machines Corporation
- Multilayer-optical-disc data-erasure method and optical disc apparatus3 Apr 2012US 8,149,663 B2Hitachi-LG Data Storage, Inc.
- Method for adjusting recording power and optical disk apparatus21 Feb 2012US 8,121,004 B2Hitachi-LG Data Storage, Inc.
- Information recording device and data erasing method12 Sep 2019US 2019/0279676 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical recording medium15 Feb 2018US 2018/0047423 A1Sony Corporation
- Methods and devices for recording marks in an information layer of an optical record carrier, and record carriers for use therein2 Jun 2011US 2011/0128837 A1Koninklijke Philips Electronics N. V.
- Heater and memory cell, memory device and recording head including the heater27 Jan 2011US 2011/0019525 A1International Business Machines Corporation
- Multilayer-optical-disc data-erasure method and optical disc apparatus6 May 2010US 2010/0110851 A1
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
- Data storage medium incorporating a transition metal for increased switching speed191US 4,710,899 AEnergy Conversion Devices, Inc. · 1987
- Congruent state changeable optical memory material and device183US 5,128,099 AEnergy Conversion Devices, Inc. · 1992
- Multiple data surface optical data storage system with transmissive data surfaces96US 5,255,262 AInternational Business Machines Corporation · 1993
- Data storage device having a phase change memory medium reversible by direct overwrite70US 4,876,667 AEnergy Conversion Devices, Inc. · 1989