G11B 20/1215
On cards
Official title: {on cards (optical aspect of optical cards G11B7/0033)}
G11B20/1215 (On cards) appears on 41 US grants and 7 published applications in this corpus.
Search patents in G11B- Granted patents
- 41
- Published applications
- 7
- Assignees
- 18
- Inventors
- 53
- Latest grant
- 19 Oct 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 4 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Storage device and control method of the storage device19 Oct 2010US 7,818,494 B2Toshiba Storage Device Corporation
- Image data recording apparatus and method7 Sep 2010US 7,791,650 B2Canon Kabushiki Kaisha
- Format mapping scheme for universal drive device20 Apr 2010US 7,702,861 B2Koninklijke Philips Electronics N. V.
- Recording medium, recording medium reading/writing apparatus, and method of using recording medium12 Jan 2010US 7,647,505 B2Seiko Epson Corporation
- Method and apparatus for reproducing first and second digital audio signals13 Jul 2004US 6,762,979 B2Sony Corporation
- Disk storage device16 Sep 2010US 2010/0232048 A1Toshiba Storage Device Corporation
- Storage device and control method of the storage device28 Aug 2008US 2008/0209151 A1Fujitsu Limited
- Image data recording apparatus and method15 Feb 2007US 2007/0036524 A1Canon Kabushiki Kaisha
- Format mapping scheme for universal drive device27 Apr 2006US 2006/0087957 A1Koninklijke Philips Electronics N. V.
- Recording medium, recording medium reading/writing apparatus, and method of using recording medium11 Sep 2003US 2003/0172279 A1Seiko Epson Corporation
Most cited
By later US patents
- Method for recording, reproducing and managing file data on a recording medium82US 5,481,519 ACanon Kabushiki Kaisha · 1996
- System for updating directory information and data on write once media such as an optical memory card71US 5,437,012 ACanon Information Systems, Inc. · 1995
- Information reproducing method comprising the step of preparing a defect bit map and a defect index table69US 5,526,335 ACanon Kabushiki Kaisha · 1996
- Method of recording data onto an optical card having a plurality of tracks containing at least one ID section, error correcting code or directory pointer area and method of reproducing data therefrom57US 4,979,159 ADai Nippon Insatsu Kabushiki Kaisha · 1990
- Method of recording data and information regarding defects46US 5,442,614 ACanon Kabushiki Kaisha · 1995