G11B 19/2036
Motors characterized by fluid-dynamic bearings
Official title: {Motors characterized by fluid-dynamic bearings}
G11B19/2036 (Motors characterized by fluid-dynamic bearings) appears on 222 US grants and 298 published applications in this corpus.
Search patents in G11B- Granted patents
- 222
- Published applications
- 298
- Assignees
- 39
- Inventors
- 370
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 20 |
| 2009 | 3 | 21 |
| 2010 | 9 | 23 |
| 2011 | 10 | 18 |
| 2012 | 18 | 24 |
| 2013 | 33 | 55 |
| 2014 | 51 | 54 |
| 2015 | 36 | 33 |
| 2016 | 14 | 15 |
| 2017 | 12 | 9 |
| 2018 | 9 | 5 |
| 2019 | 5 | 5 |
| 2020 | 7 | 3 |
| 2021 | 1 | 0 |
| 2022 | 2 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Spindle motor with bearing part arrangement and disk driving device having same20 May 2025US 12,308,047 B2Nidec Corporation
- Motor driver circuit for linear motor, positioning device using the same, and hard disk device4 Feb 2025US 12,218,620 B2Rohm Co., Ltd.
- Motor including yoke flange portion and disk drive device including same7 May 2024US 11,978,481 B2Nidec Corporation
- DNA vector production system15 Nov 2022US RE49,294 E1Mediphage Bioceuticals, Inc.
- DNA vector production system1 Feb 2022US RE48,908 E1Mediphage Bioceuticals, Inc.
- Spindle motor and disk driving device having same7 Aug 2025US 2025/0252973 A1Nidec Corporation
- Spindle motor and disk driving device having same30 May 2024US 2024/0177736 A1Nidec Corporation
- Motor and disk drive device2 Nov 2023US 2023/0352049 A1Nidec Corporation
- Disk device28 Sep 2023US 2023/0306999 A1
- Motor driver circuit for linear motor, positioning device using the same, and hard disk device11 May 2023US 2023/0147064 A1Rohm Co., Ltd.
Most cited
By later US patents
- Disk drive fluid dynamic bearing spindle48US 8,411,389 B1Western Digital Technologies, Inc. · 2013
- Disc drive hydro bearing lubricant with electrically conductive, non-metallic additive24US 5,940,246 ASeagate Technolog, Inc. · 1999
- Both ends open fluid dynamic bearing having a journal in combination with a conical bearing24US 6,292,328 B1Seagate Technology LLC · 2001
- Spindle motor with fluid dynamic bearing having a journal bearing in combination with a conical bearing21US 6,137,650 ASeagate Technology LLC · 2000
- Bearing apparatus, spindle motor, and disk drive apparatus19US 8,277,125 B2Nidec Corporation · 2012