G11B 7/261
Preparing a master
Official title: {Preparing a master, e.g. exposing photoresist, electroforming}
G11B7/261 (Preparing a master) appears on 783 US grants and 624 published applications in this corpus.
Search patents in G11B- Granted patents
- 783
- Published applications
- 624
- Assignees
- 174
- Inventors
- 1,050
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 11 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 18 | 0 |
| 1996 | 12 | 0 |
| 1997 | 20 | 0 |
| 1998 | 33 | 0 |
| 1999 | 21 | 0 |
| 2000 | 39 | 0 |
| 2001 | 51 | 28 |
| 2002 | 38 | 49 |
| 2003 | 39 | 61 |
| 2004 | 48 | 79 |
| 2005 | 27 | 66 |
| 2006 | 62 | 53 |
| 2007 | 40 | 52 |
| 2008 | 43 | 79 |
| 2009 | 48 | 40 |
| 2010 | 18 | 37 |
| 2011 | 27 | 19 |
| 2012 | 27 | 20 |
| 2013 | 21 | 15 |
| 2014 | 20 | 10 |
| 2015 | 4 | 4 |
| 2016 | 4 | 4 |
| 2017 | 5 | 0 |
| 2018 | 0 | 4 |
| 2019 | 3 | 1 |
| 2020 | 2 | 1 |
| 2021 | 3 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Storage mediums and methods of making the same30 Sep 2025US 12,431,164 B2Corning Incorporated
- Cylindrical base, master and master manufacturing method24 Sep 2024US 12,097,675 B2Dexerials Corporation
- Displacement detection device29 Nov 2022US 11,512,942 B2Dmg Mori Co., Ltd.
- Method for producing a high definition analogue audio storage medium26 Oct 2021US 11,157,663 B2Rebeat Innovation GmbH
- Cylindrical base, master and master manufacturing method17 Aug 2021US 11,090,886 B2Dexerials Corporation
- Storage mediums and methods of making the same17 Oct 2024US 2024/0347075 A1Corning Incorporated
- Cylindrical base, master and master manufacturing method16 Dec 2021US 2021/0387429 A1Dexerials Corporation
- Displacement Detection Device21 May 2020US 2020/0158494 A1Dmg Mori Co., Ltd.
- Method for producing a high definition analogue audio storage medium28 Feb 2019US 2019/0065662 A1Rebeat Innovation GmbH
- Heat-reactive resist material, mold manufacturing method, mold, development method and pattern formation material1 Nov 2018US 2018/0314159 A1Asahi Kasei E-Materials Corporation
Most cited
By later US patents
- Method for making a broadband reflective laser recording and data storage medium with absorptive underlayer198US 4,312,938 ADrexler Technology Corporation · 1982
- Optical disk136US 5,383,176 ASharp Kabushiki Kaisha · 1995
- Optically readable record carrier for recording information, apparatus for manufacturing such a record carrier, apparatus for recording information on such a record carrier, and apparatus for reading information recorded on such a record carrier124US 5,023,856 AU. S. Philips Corporation · 1991
- Optical disc and a recording and/or reproducing apparatus having copy-protection function98US 5,570,339 AVictor Company of Japan, Ltd. · 1996
- Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus97US 4,949,331 AHitachi, Ltd. · 1990