G11B 5/3189
Testing
Official title: {Testing}
G11B5/3189 (Testing) appears on 70 US grants and 64 published applications in this corpus.
Search patents in G11B- Granted patents
- 70
- Published applications
- 64
- Assignees
- 27
- Inventors
- 191
- Latest grant
- 22 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 2 | 8 |
| 2005 | 2 | 2 |
| 2006 | 6 | 3 |
| 2007 | 1 | 8 |
| 2008 | 7 | 13 |
| 2009 | 1 | 7 |
| 2010 | 7 | 3 |
| 2011 | 10 | 2 |
| 2012 | 2 | 5 |
| 2013 | 4 | 5 |
| 2014 | 4 | 0 |
| 2015 | 0 | 1 |
| 2016 | 3 | 0 |
| 2017 | 1 | 1 |
| 2018 | 5 | 0 |
| 2019 | 6 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 4 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hold-up capacitance health measurement with current leakage detection22 Nov 2022US 11,506,696 B2Western Digital Technologies, Inc.
- Data storage device detecting NFT contamination by measuring thermal gradient and magnetic write width30 Aug 2022US 11,430,482 B1Western Digital Technologies, Inc.
- Data storage device detecting write pole degradation for magnetic write head23 Aug 2022US 11,423,939 B1Western Digital Technologies, Inc.
- Apparatus and method for measuring distance between fiducial features, such as magnetic transducers, to an accuracy of within one nanometer18 Jan 2022US 11,226,194 B1International Business Machines Corporation
- Predicting failure of a magnetic tape head element27 Jul 2021US 11,074,121 B2International Business Machines Corporation
- Data storage device detecting write pole degradation for magnetic write head18 Aug 2022US 2022/0262401 A1Western Digital Technologies, Inc.
- Hold-Up Capacitance Health Measurement With Current Leakage Detection21 Apr 2022US 2022/0122631 A1Western Digital Technologies, Inc.
- Apparatus and method for measuring distance between fiducial features, such as magnetic transducers, to an accuracy of within one nanometer30 Dec 2021US 2021/0404793 A1International Business Machines.Corp
- Predicting failure of a magnetic tape head element24 Sep 2020US 2020/0301774 A1International Business Machines Corporation
- Head suspension assembly for testing a slider12 Sep 2019US 2019/0279669 A1Seagate Technology LLC
Most cited
By later US patents
- Magnetic sensor having a frequency filter coupled to an output of a magnetoresistance element49US 7,471,491 B2Kabushiki Kaisha Toshiba · 2008
- Magnetoresistive sensor having a magnetically stable free layer with a positive magnetostriction49US 7,791,844 B2Hitachi Global Storage Technologies Netherlands B. V. · 2010
- Systems for interconnecting magnetic heads of storage devices in a test assembly45US 8,514,522 B1Western Digital (Fremont), LLC · 2013
- Wafer level test structure for detecting multiple domains and magnetic instability in a permanent magnet stabilized MR head41US 5,514,953 ASeagate Technology LLC · 1996
- Methods for initializing and/or resetting GMR heads by applying oppositely directed magnetic fields15US 6,275,028 B1International Business Machines Corporation · 2001