G11B 7/1369
Active plates
Official title: Active plates, e.g. liquid crystal panels or electrostrictive elements
G11B7/1369 (Active plates) appears on 474 US grants and 514 published applications in this corpus.
Search patents in G11B- Granted patents
- 474
- Published applications
- 514
- Assignees
- 114
- Inventors
- 719
- Latest grant
- 5 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 13 | 0 |
| 1999 | 14 | 0 |
| 2000 | 21 | 0 |
| 2001 | 15 | 20 |
| 2002 | 15 | 37 |
| 2003 | 23 | 35 |
| 2004 | 20 | 42 |
| 2005 | 27 | 63 |
| 2006 | 43 | 62 |
| 2007 | 43 | 69 |
| 2008 | 32 | 71 |
| 2009 | 32 | 41 |
| 2010 | 53 | 36 |
| 2011 | 34 | 17 |
| 2012 | 24 | 6 |
| 2013 | 14 | 5 |
| 2014 | 5 | 2 |
| 2015 | 4 | 1 |
| 2016 | 4 | 3 |
| 2017 | 3 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Tunable and reconfigurable atomically thin heterostructures5 Apr 2022US 11,293,116 B2Northeastern University
- Optical information processing device29 Dec 2020US 10,878,847 B2Panasonic Intellectual Property Management Co., Ltd.
- Optical information recording device and optical information recording method29 May 2018US 9,984,717 B2Hitachi-LG Data Storage, Inc.
- Optical information recording/reproducing apparatus, optical information recording/reproducing method22 May 2018US 9,977,402 B2Arizona Board of Regents on Behalf of the University of Arizona
- Optical information recording/reproducing device12 Sep 2017US 9,761,264 B2Hitachi-LG Data Storage, Inc.
- Optical information processing device7 Nov 2019US 2019/0341072 A1Panasonic Intellectual Property Management Co., Ltd.
- Tunable and reconfigurable atomically thin heterostructures11 Jul 2019US 2019/0211474 A1Northeastern University
- Optical information recording device and optical information recording method13 Jul 2017US 2017/0200463 A1Hitachi-LG Data Storage, Inc.
- Optical information recording/reproducing apparatus, optical information recording/reproducing method22 Jun 2017US 2017/0176931 A1Arizona Board of Regents on Behalf of the University of Arizona
- Optical information recording/reproducing device3 Nov 2016US 2016/0322077 A1Hitachi-LG Data Storage, Inc.
Most cited
By later US patents
- Compound objective lens having two focal points144US 5,446,565 AMatsushita Electric Industrial Co., Ltd. · 1995
- Multiple data surface optical data storage system118US 5,202,875 AInternational Business Machines Corporation · 1993
- Optical recording medium and optical recording/reproducing apparatus91US 5,097,464 AMatsushita Electric Industrial Co., Ltd. · 1992
- Optical pickup used with both DVD and CD68US 5,734,637 APioneer Electronic Corporation · 1998
- Method of and apparatus for optically writing, reading and erasing a multi-plane record carrier, and record carrier suitable for said method and apparatus61US 5,408,453 AU. S. Philips Corporation · 1995