G11B 7/0051
Involving phase depth effects
Official title: {involving phase depth effects}
G11B7/0051 (Involving phase depth effects) appears on 66 US grants and 24 published applications in this corpus.
Search patents in G11B- Granted patents
- 66
- Published applications
- 24
- Assignees
- 36
- Inventors
- 165
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 11 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 4 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Phase-modulated optical data storage8 Sep 2026US 12,731,610 B2Microsoft Technology Licensing, LLC
- Phase-modulated optical data storage10 Dec 2024US 12,165,682 B2Microsoft Technology Licensing, LLC
- Information recording media, information reproduction apparatus, and information reproducing method5 Jul 2016US 9,384,380 B2Hitachi-LG Data Storage, Inc.
- Playback device and playback method25 Nov 2014US 8,897,107 B2Sony Corporation
- Reproducing device and reproducing method21 Oct 2014US 8,867,324 B2Sony Corporation
- Phase-modulated optical data storage13 Mar 2025US 2025/0087240 A1Microsoft Technology Licensing, LLC
- Phase-modulated optical data storage3 Oct 2024US 2024/0331730 A1Microsoft Technology Licensing, LLC
- Information recording media, information reproduction apparatus, and information reproducing method5 Feb 2015US 2015/0034723 A1Hitachi Media Electronics Co., Ltd.
- Playback device and playback method22 May 2014US 2014/0140185 A1Sony Corporation
- Reproducing device and reproducing method6 Feb 2014US 2014/0036651 A1Sony Corporation
Most cited
By later US patents
- Method for three dimensional optical data storage and retrieval107US 5,289,407 ACornell Research Foundation, Inc. · 1994
- Optical disk and optical disk apparatus where information is recorded having a specific track pitch and as a plurality of pit trains, each including a plurality of substantially trapezoidal pits79US 5,459,712 AKabushiki Kaisha Toshiba · 1995
- Optical information recording medium59US 4,940,618 ATaiyo Yuden Co., Ltd. · 1990
- Optical information reproducing apparatus57US 5,610,897 ACanon Kabushiki Kaisha · 1997
- Optical information recording medium44US 6,004,646 AMitsubishi Chemical Corporation · 1999