G11B 13/00
Recording simultaneously or selectively by methods covered by different main groups among
Official title: Recording simultaneously or selectively by methods covered by different main groups {among G11B3/00, G11B5/00, G11B7/00 and G11B9/00}; Record carriers therefor {not otherwise provided for}; Reproducing therefrom {not otherwise provided for (G11B9/14, G11B11/002 take precedence; driving or moving of heads G11B3/02, G11B5/48, G11B7/08, G11B21/02)}
G11B13/00 (Recording simultaneously or selectively by methods covered by different main groups among) appears on 590 US grants and 311 published applications in this corpus.
Search patents in G11B- Granted patents
- 590
- Published applications
- 311
- Assignees
- 120
- Inventors
- 868
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 21 | 0 |
| 1996 | 16 | 0 |
| 1997 | 16 | 0 |
| 1998 | 15 | 0 |
| 1999 | 15 | 0 |
| 2000 | 24 | 0 |
| 2001 | 22 | 11 |
| 2002 | 21 | 24 |
| 2003 | 19 | 20 |
| 2004 | 20 | 15 |
| 2005 | 16 | 20 |
| 2006 | 12 | 4 |
| 2007 | 6 | 2 |
| 2008 | 10 | 3 |
| 2009 | 4 | 1 |
| 2010 | 4 | 2 |
| 2011 | 2 | 5 |
| 2012 | 3 | 5 |
| 2013 | 19 | 35 |
| 2014 | 30 | 42 |
| 2015 | 58 | 35 |
| 2016 | 30 | 11 |
| 2017 | 9 | 5 |
| 2018 | 8 | 6 |
| 2019 | 15 | 4 |
| 2020 | 7 | 5 |
| 2021 | 16 | 5 |
| 2022 | 17 | 14 |
| 2023 | 29 | 9 |
| 2024 | 20 | 16 |
| 2025 | 12 | 5 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Near field transducer with template layer for improved reliability11 Aug 2026US 12,706,118 B2Headway Technologies, Inc.
- Vertical cavity surface emitting laser, head gimbal assembly, and fabrication process11 Aug 2026US 12,706,439 B2Western Digital Technologies, Inc.
- Tapered magnetic main pole structure with variable peg gap for heat-assisted magnetic recording technology16 Jun 2026US 12,658,201 B1Headway Technologies, Inc.
- Energy-assisted recording near-field transducer with inlay to improve coupling efficiency28 Apr 2026US 12,614,561 B1Seagate Technology LLC
- Tapered bi-layer near field transducer for heat-assisted magnetic recording write heads31 Mar 2026US 12,592,253 B2Headway Technologies, Inc.
- Tapered Magnetic Main Pole Structure With Variable Peg Gap For Heat-Assisted Magnetic Recording Technology17 Sep 2026US 2026/0279390 A1Headway Technologies, Inc.
- Magnetic recording media/disks and methods and apparatus for identifying magnetic recording media/disks suitable for data storage devices6 Aug 2026US 2026/0229253 A1Western Digital Technologies, Inc.
- Tapered Magnetic Main Pole Structure With Variable Peg Gap For Heat-Assisted Magnetic Recording Technology18 Jun 2026US 2026/0171113 A1Headway Technologies, Inc.
- Heat Assisted Magnetic Recording Head Comprising A Thermally Stable Material26 Mar 2026US 2026/0088043 A1Western Digital Technologies, Inc.
- Vertical cavity surface emitting laser and head gimbal assembly12 Mar 2026US 2026/0074485 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Read/write head with shifted waveguide218US 6,016,290 ARead-Rite Corporation · 2000
- Laser mounting for a thermally assisted GMR head203US 6,404,706 B1Read-Rite Corporation · 2002
- Method for providing an electronic lapping guide corresponding to a near-field transducer of an energy assisted magnetic recording transducer168US 8,375,565 B2Western Digital (Fremont), LLC · 2013
- Mark forming apparatus, method of forming laser mark on optical disk, reproducing apparatus, optical disk and method of producing optical disk167US 5,761,301 AMatsushita Electric Industrial Co., Ltd. · 1998
- Optical disk, optical recorder, optical reproducer, crytocommunication system and program license system125US 6,081,785 AMatsushita Electric Industrial Co., Ltd. · 2000