G11B 7/24056
Light transmission layers lying on the light entrance side and being thinner
Official title: Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs
G11B7/24056 (Light transmission layers lying on the light entrance side and being thinner) appears on 130 US grants and 133 published applications in this corpus.
Search patents in G11B- Granted patents
- 130
- Published applications
- 133
- Assignees
- 74
- Inventors
- 295
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 16 |
| 2003 | 5 | 9 |
| 2004 | 10 | 12 |
| 2005 | 7 | 14 |
| 2006 | 10 | 16 |
| 2007 | 5 | 9 |
| 2008 | 4 | 5 |
| 2009 | 8 | 8 |
| 2010 | 3 | 2 |
| 2011 | 4 | 4 |
| 2012 | 5 | 3 |
| 2013 | 2 | 4 |
| 2014 | 3 | 7 |
| 2015 | 2 | 2 |
| 2016 | 5 | 3 |
| 2017 | 1 | 2 |
| 2018 | 4 | 2 |
| 2019 | 3 | 3 |
| 2020 | 1 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Optical recording medium5 Dec 2023US 11,837,265 B2Sony Group Corporation
- Optical storage medium24 Oct 2023US 11,798,589 B2Case Western Reserve University
- Drawing method, erasing method, and drawing apparatus16 Aug 2022US 11,413,878 B2Sony Corporation
- Optical information storage medium28 Dec 2021US 11,211,091 B2Case Western Reserve University
- Materials for near field transducers and near field transducers containing same31 Aug 2021US 11,107,499 B2Seagate Technology LLC
- Optical information storage medium6 Nov 2025US 2025/0342857 A1
- Optical storage medium15 Feb 2024US 2024/0055020 A1Case Western Reserve University
- Optical recording medium19 Jan 2023US 2023/0018411 A1Sony Group Corporation
- Optical storage medium29 Dec 2022US 2022/0415351 A1Case Western Reserve University
- Optical information storage medium3 Mar 2022US 2022/0068306 A1
Most cited
By later US patents
- Double-sided optical media for a disk storage device82US 5,470,627 AQuantum Corporation · 1995
- Optical disk with a groove for defining serial data modulated into a signal using modulation processing69US 6,097,695 ASony Corporation · 2000
- Apparatus for fabricating coating and method of fabricating the coating69US 6,835,523 B1Semiconductor Energy Laboratory Co.Ltd. · 2004
- Double-sided magneto-optical media for a multi-disk storage device64US 5,202,880 ADigital Equipment Corporation · 1993
- Optical disc system and optical disk therefor50US 5,610,880 ASony Corporation · 1997