G11B 7/24065
Layers assisting in recording or reproduction below the optical diffraction limit
Official title: Layers assisting in recording or reproduction below the optical diffraction limit, e.g. non-linear optical layers or structures (cover layers for near-field media G11B7/24059)
G11B7/24065 (Layers assisting in recording or reproduction below the optical diffraction limit) appears on 60 US grants and 66 published applications in this corpus.
Search patents in G11B- Granted patents
- 60
- Published applications
- 66
- Assignees
- 31
- Inventors
- 133
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 5 |
| 2006 | 2 | 10 |
| 2007 | 3 | 5 |
| 2008 | 4 | 2 |
| 2009 | 4 | 1 |
| 2010 | 3 | 7 |
| 2011 | 2 | 3 |
| 2012 | 2 | 3 |
| 2013 | 6 | 3 |
| 2014 | 2 | 4 |
| 2015 | 4 | 2 |
| 2016 | 3 | 4 |
| 2017 | 3 | 3 |
| 2018 | 3 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical storage medium24 Oct 2023US 11,798,589 B2Case Western Reserve University
- Radial servo device for super-resolution optical disc and servo control method therefor18 Jan 2022US 11,227,632 B2Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- Optical information storage medium28 Dec 2021US 11,211,091 B2Case Western Reserve University
- Optical information storage medium12 Mar 2019US 10,229,709 B2Case Western Reserve University
- Optical information recording medium having first and second pit row of identical reflectance4 Sep 2018US 10,068,605 B2Memory-Tech Holdings Inc.
- Optical information storage medium6 Nov 2025US 2025/0342857 A1
- Non-linear optical-absorbing material, recording medium, method for recording information, and method for reading information6 Feb 2025US 2025/0046340 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical storage medium15 Feb 2024US 2024/0055020 A1Case Western Reserve University
- Nonlinear optical material, light absorbing material, recording medium, method for recording information, and method for reading out information13 Apr 2023US 2023/0113096 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical storage medium29 Dec 2022US 2022/0415351 A1Case Western Reserve University
Most cited
By later US patents
- Storage medium having a layer of micro-optical lenses each lens generating an evanescent field104US 5,910,940 APolaroid Corporation · 1999
- Supperresolution readout thin film and information recording medium44US 5,709,978 AHitachi, Ltd. · 1998
- Optical recording systems40US 6,094,413 APolaroid Corporation · 2000
- Information storage systems utilizing media with optically-differentiated data sites34US 6,115,348 ACalimetrics, Inc. · 2000
- Information recording medium21US 5,912,104 AHitachi, Ltd. · 1999