G11B 3/08512
Using optical detecting means
Official title: {using optical detecting means}
G11B3/08512 (Using optical detecting means) appears on 26 US grants and 2 published applications in this corpus.
Search patents in G11B- Granted patents
- 26
- Published applications
- 2
- Assignees
- 12
- Inventors
- 35
- Latest grant
- 31 Mar 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Light monitoring circuit for a manual to automatic turntable conversion31 Mar 2020US 10,607,634 B1
- Manual to automatic turntable player conversion27 Nov 2018US 10,141,012 B1
- Pickup arm drive device11 Sep 1984US 4,471,476 APioneer Electronic Corporation
- Apparatus for playing record discs in an automatic mode and an automatic music piece selection mode14 Aug 1984US 4,466,086 AVictor Company of Japan, Ltd.
- Separation band detecting circuit in an automatic program selection record player7 Aug 1984US 4,464,740 AVictor Company of Japan, Ltd.
Most cited
By later US patents
- Automatic phonographs19US 3,993,315 ABang & Olufsen A/S · 1976
- Automatic eject apparatus for a self-contained record player12US 4,399,528 ASony Corporation · 1983
- Automatic record player10US 4,230,323 ASharp Kabushiki Kaisha · 1980
- Device for manually controlling movement of pickup arm in automatic record player7US 4,202,549 ANippon Gakki Seizo Kabushiki Kaisha · 1980
- Electrical control system for the movement of the pickup arm of a disc-record player6US 4,184,687 APlessey Handel und Investments AG · 1980