G11B 19/128
Involving the detection of track pitch or recording density
Official title: {involving the detection of track pitch or recording density}
G11B19/128 (Involving the detection of track pitch or recording density) appears on 61 US grants and 62 published applications in this corpus.
Search patents in G11B- Granted patents
- 61
- Published applications
- 62
- Assignees
- 34
- Inventors
- 113
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 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 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 3 |
| 2002 | 5 | 3 |
| 2003 | 0 | 3 |
| 2004 | 3 | 6 |
| 2005 | 5 | 10 |
| 2006 | 7 | 8 |
| 2007 | 6 | 8 |
| 2008 | 4 | 2 |
| 2009 | 2 | 2 |
| 2010 | 4 | 8 |
| 2011 | 6 | 3 |
| 2012 | 2 | 0 |
| 2013 | 4 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Flexible disc device for media of different track densities33US 4,622,601 AMitsubishi Denki Kabushiki Kaisha · 1986
- Storage medium recorded with recording/reproducing conditions depending upon recording densities and method of recording and reproducing therefor33US 6,339,571 B12002
- Information storage apparatus and method of controlling the same26US 6,710,960 B1Fujitsu Limited · 2004
- Optical pickup apparatus for optical record media and identification apparatus for identifying the type of optical record media21US 5,757,742 APioneer Electronic Corporation · 1998
- Optical pickup for discriminating between and reading different types of optical discs16US 6,222,803 B1Sony Corporation · 2001