G11B 15/43
Control or regulation of mechanical tension of record carrier
Official title: Control or regulation of mechanical tension of record carrier, e.g. tape tension
G11B15/43 (Control or regulation of mechanical tension of record carrier) appears on 474 US grants and 124 published applications in this corpus.
Search patents in G11B- Granted patents
- 474
- Published applications
- 124
- Assignees
- 140
- Inventors
- 718
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 13 | 0 |
| 1983 | 12 | 0 |
| 1984 | 11 | 0 |
| 1985 | 12 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 11 | 0 |
| 1989 | 11 | 0 |
| 1990 | 9 | 0 |
| 1991 | 15 | 0 |
| 1992 | 19 | 0 |
| 1993 | 13 | 0 |
| 1994 | 27 | 0 |
| 1995 | 24 | 0 |
| 1996 | 19 | 0 |
| 1997 | 23 | 0 |
| 1998 | 17 | 0 |
| 1999 | 14 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 0 |
| 2002 | 7 | 8 |
| 2003 | 5 | 4 |
| 2004 | 8 | 7 |
| 2005 | 3 | 2 |
| 2006 | 5 | 5 |
| 2007 | 3 | 2 |
| 2008 | 3 | 8 |
| 2009 | 4 | 6 |
| 2010 | 2 | 2 |
| 2011 | 4 | 1 |
| 2012 | 3 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 4 |
| 2015 | 8 | 4 |
| 2016 | 6 | 4 |
| 2017 | 2 | 3 |
| 2018 | 5 | 4 |
| 2019 | 7 | 7 |
| 2020 | 11 | 3 |
| 2021 | 7 | 15 |
| 2022 | 11 | 13 |
| 2023 | 12 | 7 |
| 2024 | 5 | 10 |
| 2025 | 9 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Method and apparatus for process control, tension control, and testing of magnetic media126US 5,408,505 AWashington University · 1995
- Tape head having sensors proximate to an edge113US 9,837,104 B1International Business Machines Corporation · 2017
- Tape tension control for a tape recorder70US 4,351,493 AU. S. Philips Corporation · 1982
- Adaptive reel-to-reel tape control system69US 4,015,799 AInternational Business Machines Corporation · 1977
- Transfer of a flexible web member from supply reel to a take-up reel56US 4,172,231 AStaar S. A. · 1979