G11B 19/2027
Turntables or rotors incorporating balancing means
Official title: {Turntables or rotors incorporating balancing means; Means for detecting imbalance}
G11B19/2027 (Turntables or rotors incorporating balancing means) appears on 83 US grants and 59 published applications in this corpus.
Search patents in G11B- Granted patents
- 83
- Published applications
- 59
- Assignees
- 37
- Inventors
- 164
- Latest grant
- 8 Sep 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 3 |
| 2002 | 10 | 5 |
| 2003 | 6 | 7 |
| 2004 | 11 | 13 |
| 2005 | 5 | 6 |
| 2006 | 9 | 3 |
| 2007 | 1 | 1 |
| 2008 | 3 | 5 |
| 2009 | 2 | 3 |
| 2010 | 3 | 2 |
| 2011 | 3 | 5 |
| 2012 | 1 | 1 |
| 2013 | 4 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of imbalance correction using a grooved disk clamp8 Sep 2015US 9,129,639 B1Western Digital Technologies, Inc.
- Method of imbalance correction using a grooved disk clamp15 Jul 2014US 8,780,491 B1Western Digital Technologies, Inc.
- Methods for balancing a disk drive1 Apr 2014US 8,683,677 B2Seagate Technology LLC
- Spindle motor including magnetic member and disk drive apparatus including same13 Aug 2013US 8,508,884 B2Nidec Corporation
- Motor with a chucking device having a turntable and a plurality of balls, and a disk drive apparatus including the motor26 Mar 2013US 8,407,731 B2Nidec Corporation
- Acoustic device13 Aug 2026US 2026/0237404 A1Alphatheta Corporation
- Motor and disk drive device29 Dec 2022US 2022/0416603 A1Nidec Corporation
- Methods for balancing a disk drive6 Mar 2014US 2014/0063654 A1Seagate Technology LLC
- Spindle motor5 Dec 2013US 2013/0320784 A1LG Innotek Co., Ltd.
- Spindle motor and disk drive apparatus18 Apr 2013US 2013/0094342 A1Nidec Corporation
Most cited
By later US patents
- Method for adjusting rotation balance of disk and device for the same77US 5,811,678 AInternational Business Machines Corporation · 1998
- Balance ring77US 6,778,353 B1Komag, Inc. · 2004
- Balancing apparatus and method for high speed hard disk drive spindles73US 6,356,409 B1International Business Machines Corporation · 2002
- D.C. motor68US 4,949,000 AMueller and Smith, LPA · 1990
- Disk drive comprising a notched disk clamp for improved disk balance58US 6,754,042 B1Western Digital Technologies, Inc. · 2004