G11B 5/727
Inorganic carbon protective coating
Official title: {Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon}
G11B5/727 (Inorganic carbon protective coating) appears on 128 US grants and 71 published applications in this corpus.
Search patents in G11B- Granted patents
- 128
- Published applications
- 71
- Assignees
- 59
- Inventors
- 346
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 7 | 3 |
| 2003 | 4 | 6 |
| 2004 | 7 | 8 |
| 2005 | 5 | 6 |
| 2006 | 4 | 4 |
| 2007 | 1 | 5 |
| 2008 | 4 | 2 |
| 2009 | 5 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 4 |
| 2014 | 3 | 3 |
| 2015 | 5 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 3 | 1 |
| 2019 | 0 | 2 |
| 2020 | 4 | 4 |
| 2021 | 4 | 2 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and method for forming an overcoat14 Jan 2025US 12,198,741 B2Nanyang Technological University
- Magnetic recording medium and magnetic read/write apparatus10 Sep 2024US 12,087,341 B2Resonac Corporation
- Magnetic recording medium having a controlled dimensional variation6 Dec 2022US 11,521,650 B2Sony Corporation
- Magnetic recording cartridge15 Feb 2022US 11,250,884 B2Sony Corporation
- Magnetic recording medium having a controlled dimensional variation25 May 2021US 11,017,809 B2Sony Corporation
- Magnetic recording medium29 Aug 2024US 2024/0290349 A1Sony Group Corporation
- Apparatus and method for forming an overcoat28 Dec 2023US 2023/0419994 A1Nanyang Technological University
- Heat-assisted magnetic recording (hamr) media with dual-layer media carbon overcoat27 Jul 2023US 2023/0238023 A1Western Digital Technologies, Inc.
- Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproducing apparatus17 Feb 2022US 2022/0051693 A1
- Magnetic recording medium having a controlled dimensional variation9 Sep 2021US 2021/0280214 A1Sony Group Corporation
Most cited
By later US patents
- Method for producing recording media having protective overcoats of highly tetrahedral amorphous carbon122US 5,858,477 AAkashic Memories Corporation · 1999
- Method for forming diamond-like nanocomposite or doped-diamond-like nanocomposite films120US 5,352,493 A1994
- Diamond-like metallic nanocomposites118US 5,466,431 A1995
- Method for fabricating with ultrasonic vibration a carbon coating86US 5,932,302 ASemiconductor Energy Laboratory Co.Ltd. · 1999
- Hard carbon coating for magnetic recording medium78US 6,171,674 B2Semiconductor Energy Laboratory Co.Ltd. · 2001