G11B 7/0912
By push-pull method
Official title: {by push-pull method}
G11B7/0912 (By push-pull method) appears on 249 US grants and 122 published applications in this corpus.
Search patents in G11B- Granted patents
- 249
- Published applications
- 122
- Assignees
- 80
- Inventors
- 416
- Latest grant
- 7 Jun 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 13 | 0 |
| 1997 | 22 | 0 |
| 1998 | 15 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 6 |
| 2002 | 7 | 28 |
| 2003 | 8 | 10 |
| 2004 | 7 | 6 |
| 2005 | 10 | 15 |
| 2006 | 21 | 14 |
| 2007 | 11 | 9 |
| 2008 | 4 | 8 |
| 2009 | 5 | 7 |
| 2010 | 4 | 9 |
| 2011 | 12 | 5 |
| 2012 | 8 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical pickup and optical recording and reproducing device7 Jun 2016US 9,361,927 B2Panasonic Intellectual Property Management Co., Ltd.
- Optical disc device6 Oct 2015US 9,153,271 B2Renesas Electronics Corporation
- Optical disc device15 Jul 2014US 8,780,680 B2Renesas Electronics Corporation
- Optical disc apparatus, method of controlling the same, and information storage medium27 Aug 2013US 8,520,480 B2Sony Computer Entertainment Inc.
- Optical pickup device and optical read/write apparatus28 May 2013US 8,451,700 B2Panasonic Corporation
- Optical pickup and optical recording and reproducing device5 Nov 2015US 2015/0318010 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical disc device25 Sep 2014US 2014/0286148 A1Renesas Electronics Corporation
- Optical disc device2 May 2013US 2013/0107685 A1Sony Corporation
- Optical pickup device and optical read/write apparatus4 Apr 2013US 2013/0083641 A1Panasonic Corporation
- Optical pickup1 Mar 2012US 2012/0051204 A1Hitachi Media Electronics Co., Ltd.
Most cited
By later US patents
- Compound objective lens having two focal points144US 5,446,565 AMatsushita Electric Industrial Co., Ltd. · 1995
- Read write device for optical memory and method therefore102US 7,480,215 B2Nokia Corporation · 2009
- Optical memory system providing improved focusing control and improved beam combining and separating apparatus79US 4,621,353 ABurroughs Corporation · 1986
- Optical head apparatus for different types of disks78US 5,696,750 ANEC Corporation · 1997
- Optical recording medium having two separate recording layers68US 5,764,619 AMatsushita Electric Industrial Co., Ltd. · 1998