G11B 23/38
Visual features other than those contained in record tracks or represented by
Official title: Visual features other than those contained in record tracks or represented by sprocket holes {the visual signals being auxiliary signals}
G11B23/38 (Visual features other than those contained in record tracks or represented by) appears on 889 US grants and 647 published applications in this corpus.
Search patents in G11B- Granted patents
- 889
- Published applications
- 647
- Assignees
- 259
- Inventors
- 1,407
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 10 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 13 | 0 |
| 1994 | 23 | 0 |
| 1995 | 20 | 0 |
| 1996 | 33 | 0 |
| 1997 | 32 | 0 |
| 1998 | 58 | 0 |
| 1999 | 33 | 0 |
| 2000 | 47 | 0 |
| 2001 | 51 | 28 |
| 2002 | 52 | 57 |
| 2003 | 38 | 56 |
| 2004 | 32 | 73 |
| 2005 | 34 | 74 |
| 2006 | 38 | 73 |
| 2007 | 39 | 77 |
| 2008 | 37 | 71 |
| 2009 | 51 | 52 |
| 2010 | 40 | 26 |
| 2011 | 47 | 19 |
| 2012 | 25 | 17 |
| 2013 | 22 | 10 |
| 2014 | 12 | 4 |
| 2015 | 5 | 1 |
| 2016 | 3 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 4 | 3 |
| 2020 | 0 | 3 |
| 2021 | 3 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Magnetic tape cartridge and label for magnetic tape cartridge identification6 May 2025US 12,293,777 B2FUJIFILM Corporation
- Gramophone plate with recorded image5 Dec 2023US 11,836,558 B2
- Printer and control method of printer1 Nov 2022US 11,485,148 B2Seiko Epson Corporation
- Optimized re-inventory for a tape library8 Feb 2022US 11,244,707 B1International Business Machines Corporation
- Media processing apparatus and method of controlling media processing apparatus31 Aug 2021US 11,106,407 B2Seiko Epson Corporation
- Magnetic tape cartridge and label for magnetic tape cartridge identification22 Aug 2024US 2024/0282340 A1FUJIFILM Corporation
- Gramophone plate with recorded image8 Jul 2021US 2021/0209432 A1Iq Structures S.R.O.
- Media processing apparatus and method of controlling media processing apparatus27 May 2021US 2021/0155011 A1Seiko Epson Corporation
- Printer and control method of printer29 Oct 2020US 2020/0338904 A1Seiko Epson Corporation
- Recording tape cartridge and barcode label reissuing method15 Oct 2020US 2020/0327291 A1FUJIFILM Corporation
Most cited
By later US patents
- Compact disc recorder/vending machine267US 5,949,688 A1999
- Mark forming apparatus, method of forming laser mark on optical disk, reproducing apparatus, optical disk and method of producing optical disk167US 5,761,301 AMatsushita Electric Industrial Co., Ltd. · 1998
- Optical disk, optical recorder, optical reproducer, crytocommunication system and program license system125US 6,081,785 AMatsushita Electric Industrial Co., Ltd. · 2000
- CD-ROM with machine-readable i.d. code117US 5,513,169 ADigital Audio Disc Corporation · 1996
- System and method for logging and retrieving information on video cassettes in a computer controlled surveillance system115US 5,526,133 ASensormatic Electronics Corporation · 1996