G11B 5/147
With cores being composed of metal sheets, i.e. laminated cores with cores
Official title: with cores being composed of metal sheets, i.e. laminated cores {with cores composed of isolated magnetic layers, e.g. sheets (in thin films G11B5/31)}
G11B5/147 (With cores being composed of metal sheets, i.e. laminated cores with cores) appears on 257 US grants and 90 published applications in this corpus.
Search patents in G11B- Granted patents
- 257
- Published applications
- 90
- Assignees
- 71
- Inventors
- 478
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 16 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 0 |
| 2005 | 1 | 12 |
| 2006 | 4 | 6 |
| 2007 | 5 | 3 |
| 2008 | 3 | 7 |
| 2009 | 5 | 8 |
| 2010 | 6 | 0 |
| 2011 | 3 | 2 |
| 2012 | 3 | 4 |
| 2013 | 5 | 3 |
| 2014 | 3 | 5 |
| 2015 | 11 | 6 |
| 2016 | 15 | 6 |
| 2017 | 6 | 3 |
| 2018 | 9 | 5 |
| 2019 | 3 | 8 |
| 2020 | 8 | 4 |
| 2021 | 7 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Energy-assisted recording head with C-shaped delivery waveguide core5 Aug 2025US 12,380,918 B1Seagate Technology LLC
- Hub, information processing apparatus, and program5 Mar 2024US 11,922,971 B2FUJIFILM Corporation
- BiSb topological insulator with novel buffer layer that promotes a BiSb (012) orientation4 Jul 2023US 11,694,713 B2Western Digital Technologies, Inc.
- Methods of forming materials2 Nov 2021US 11,164,600 B1Seagate Technology LLC
- Card reader having chopping drive circuit with cycle shorter than reading gap and control method for card reader19 Oct 2021US 11,152,017 B2Nidec Sankyo Corporation
- Dual Free Layer TMR Reader with Shaped Rear Bias and Methods of Forming Thereof25 Dec 2025US 2025/0391430 A1Western Digital Technologies, Inc.
- Magnetic head and magnetic recording device17 Jul 2025US 2025/0232788 A1Kabushiki Kaisha Toshiba
- Hub, information processing apparatus, and program2 Feb 2023US 2023/0034328 A1FUJIFILM Corporation
- BiSb Topological Insulator with Novel Buffer Layer that Promotes a BiSb (012) Orientation12 Aug 2021US 2021/0249038 A1Tokyo Institute of Technology
- Write transducer with symmetric yoke structure13 May 2021US 2021/0142822 A1International Business Machines Corporation
Most cited
By later US patents
- Write head with variable side shield gaps168US 8,400,731 B1Western Digital (Fremont), LLC · 2013
- MgO based perpendicular spin polarizer in microwave assisted magnetic recording (MAMR) applications167US 9,230,571 B1Headway Technologies, Inc. · 2016
- Laminated perpendicular writer head including amorphous metal154US 7,672,080 B1Western Digital (Fremont), LLC · 2010
- Method and system for providing a high moment film151US 8,320,077 B1Western Digital (Fremont), LLC · 2012
- Method and system for providing a magnetic transducer having improved shield-to-shield spacing150US 8,537,502 B1Western Digital (Fremont), LLC · 2013