G11B 2220/45
Hierarchical combination of record carriers
Official title: Hierarchical combination of record carriers, e.g. HDD for fast access, optical discs for long term storage or tapes for backup
G11B2220/45 (Hierarchical combination of record carriers) appears on 778 US grants and 797 published applications in this corpus.
Search patents in G11B- Granted patents
- 778
- Published applications
- 797
- Assignees
- 104
- Inventors
- 628
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 20 | 14 |
| 2002 | 24 | 82 |
| 2003 | 47 | 37 |
| 2004 | 18 | 93 |
| 2005 | 23 | 69 |
| 2006 | 46 | 126 |
| 2007 | 61 | 40 |
| 2008 | 50 | 24 |
| 2009 | 59 | 61 |
| 2010 | 43 | 33 |
| 2011 | 167 | 159 |
| 2012 | 29 | 18 |
| 2013 | 80 | 8 |
| 2014 | 14 | 7 |
| 2015 | 12 | 8 |
| 2016 | 6 | 6 |
| 2017 | 8 | 5 |
| 2018 | 1 | 2 |
| 2019 | 4 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Recording and reproducing apparatus and method thereof26 Aug 2025US 12,400,685 B2Maxell, Ltd.
- Recording and reproducing apparatus and method thereof2 Apr 2024US 11,948,605 B2Maxell, Ltd.
- Recording and reproducing apparatus and method thereof15 Aug 2023US 11,727,960 B2Maxell, Ltd.
- Recording and reproducing apparatus and method thereof17 Aug 2021US 11,094,350 B2Maxell, Ltd.
- Television viewer interface system10 Mar 2020US 10,587,925 B2TiVo Solutions Inc.
- Recording and reproducing apparatus and method thereof20 Nov 2025US 2025/0356882 A1Maxell, Ltd.
- Recording and reproducing apparatus and method thereof27 Jun 2024US 2024/0212717 A1Maxell, Ltd.
- Recording and reproducing apparatus and method thereof2 Mar 2023US 2023/0062925 A1Maxell, Ltd.
- Recording and reproducing apparatus and method thereof25 Nov 2021US 2021/0366521 A1Maxell, Ltd.
- Recording and reproducing apparatus and method thereof18 Apr 2019US 2019/0115050 A1Maxell, Ltd.
Most cited
By later US patents
- Multimedia time warping system1,079US 6,233,389 B1TiVo Inc. · 2001
- Optical disc having an area storing original and user chain information specifying at least part of a video object stored on the disc, and a computer program and recording apparatus for recording and editing the chain information540US 6,181,870 B2Matushita Electric Industrial Co., Ltd. · 2001
- Video monitoring and conferencing system518US 5,625,410 A1997
- Audio/video transceiver apparatus including compression means497US 4,963,995 AExplore Technology, Inc. · 1990
- Audio/video transceiver apparatus including compression means, random access storage means, and microwave transceiver means481US 5,057,932 AExplore Technology, Inc. · 1991