G11B 7/1381
Non-lens elements for altering the properties of the beam
Official title: Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops (G11B7/1353 - G11B7/1369 take precedence)
G11B7/1381 (Non-lens elements for altering the properties of the beam) appears on 765 US grants and 493 published applications in this corpus.
Search patents in G11B- Granted patents
- 765
- Published applications
- 493
- Assignees
- 161
- Inventors
- 1,077
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 19 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 12 | 0 |
| 1991 | 13 | 0 |
| 1992 | 21 | 0 |
| 1993 | 19 | 0 |
| 1994 | 8 | 0 |
| 1995 | 16 | 0 |
| 1996 | 21 | 0 |
| 1997 | 24 | 0 |
| 1998 | 41 | 0 |
| 1999 | 30 | 0 |
| 2000 | 26 | 0 |
| 2001 | 41 | 26 |
| 2002 | 48 | 41 |
| 2003 | 19 | 41 |
| 2004 | 24 | 26 |
| 2005 | 40 | 48 |
| 2006 | 34 | 59 |
| 2007 | 33 | 41 |
| 2008 | 29 | 45 |
| 2009 | 26 | 45 |
| 2010 | 31 | 30 |
| 2011 | 44 | 15 |
| 2012 | 20 | 12 |
| 2013 | 20 | 13 |
| 2014 | 11 | 14 |
| 2015 | 4 | 12 |
| 2016 | 7 | 11 |
| 2017 | 11 | 3 |
| 2018 | 4 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 3 | 2 |
| 2023 | 1 | 2 |
| 2024 | 3 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multidimensional optical storage media having light confinement layers and reading methodology therefor12 Aug 2025US 12,387,753 B1Seagate Technology LLC
- Radiation image reading device20 Aug 2024US 12,068,013 B2Hamamatsu Photonics K.K.
- Systems and methods for increasing data rate and storage density in 3-dimensional optical data storage media2 Jul 2024US 12,027,178 B2Folio Photonics, Inc.
- Detection apparatus, optical drive, and detection method30 Jan 2024US 11,887,624 B2Huawei Technologies Co., Ltd.
- Tunable plasmonic color device and method of making the same23 May 2023US 11,656,386 B2Purdue Research Foundation
- Data read/write apparatus and electronic device13 Jul 2023US 2023/0223046 A1Huawei Technologies Co., Ltd.
- Systems and methods for increasing data rate and storage density in 3-dimensional optical data storage media26 Jan 2023US 2023/0024379 A1Folio Photonics, Inc.
- Radiation image reading device25 Aug 2022US 2022/0270646 A1Hamamatsu Photonics K.K.
- Detection Apparatus, Optical Drive, and Detection Method18 Aug 2022US 2022/0262398 A1Huawei Technologies Co., Ltd.
- Tunable plasmonic color device and method of making the same21 Oct 2021US 2021/0325577 A1Purdue Research Foundation
Most cited
By later US patents
- Method and apparatus for storage and retrieval with multilayer optical disks276US 5,526,338 AYeda Research and Development Co. Ltd. · 1996
- Storage medium having a layer of micro-optical lenses each lens generating an evanescent field104US 5,910,940 APolaroid Corporation · 1999
- Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom88US 4,733,065 ACanon Denshi Kabushiki Kaisha · 1988
- Information reading and recording apparatus88US 6,944,111 B2Minebea Co., Ltd. · 2005
- Switchable optical element85US 7,508,566 B2Koninklijke Philips Electronics N. V. · 2009