G11B 3/702
For video discs with grooves
Official title: {for video discs with grooves (G11B3/705 takes precedence)}
G11B3/702 (For video discs with grooves) appears on 6 US grants and 1 published applications in this corpus.
Search patents in G11B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 5
- Inventors
- 15
- Latest grant
- 20 Sep 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Computer program product for controlling an apparatus for accessing dual-path optical recording media20 Sep 2011US 8,023,384 B2International Business Machines Corporation
- Digital delay for high quality audio use7 Sep 1982US 4,348,754 AAmpex Corporation
- Method of producing plate-shaped body24 Nov 1981US 4,302,411 AMatsushita Electric Industrial Co., Ltd.
- Slow down color processor for video disc mastering using a special mode VTR7 Jul 1981US 4,277,796 ARCA Corporation
- Record disk and method for producing the same with constant width groove1 May 1979US 4,152,726 ASony Corporation
Most cited
By later US patents
- Slow down color processor for video disc mastering using a special mode VTR15US 4,277,796 ARCA Corporation · 1981
- Defect plotting system14US 4,069,484 ARCA Corporation · 1978
- Digital delay for high quality audio use13US 4,348,754 AAmpex Corporation · 1982
- Record disk and method for producing the same with constant width groove9US 4,152,726 ASony Corporation · 1979
- Method of producing plate-shaped body7US 4,302,411 AMatsushita Electric Industrial Co., Ltd. · 1981