G11B 5/73927
Polyester substrates
Official title: {Polyester substrates, e.g. polyethylene terephthalate}
G11B5/73927 (Polyester substrates) appears on 397 US grants and 149 published applications in this corpus.
Search patents in G11B- Granted patents
- 397
- Published applications
- 149
- Assignees
- 64
- Inventors
- 614
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 16 | 0 |
| 1986 | 18 | 0 |
| 1987 | 21 | 0 |
| 1988 | 18 | 0 |
| 1989 | 11 | 0 |
| 1990 | 6 | 0 |
| 1991 | 11 | 0 |
| 1992 | 14 | 0 |
| 1993 | 16 | 0 |
| 1994 | 24 | 0 |
| 1995 | 26 | 0 |
| 1996 | 18 | 0 |
| 1997 | 14 | 0 |
| 1998 | 6 | 0 |
| 1999 | 16 | 0 |
| 2000 | 8 | 0 |
| 2001 | 16 | 4 |
| 2002 | 9 | 11 |
| 2003 | 8 | 11 |
| 2004 | 12 | 6 |
| 2005 | 6 | 21 |
| 2006 | 7 | 11 |
| 2007 | 2 | 13 |
| 2008 | 8 | 4 |
| 2009 | 4 | 3 |
| 2010 | 3 | 4 |
| 2011 | 4 | 3 |
| 2012 | 2 | 2 |
| 2013 | 3 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 3 |
| 2020 | 4 | 10 |
| 2021 | 8 | 13 |
| 2022 | 17 | 13 |
| 2023 | 11 | 5 |
| 2024 | 4 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic recording medium and cartridge2 Jun 2026US 12,646,531 B2Sony Group Corporation
- Magnetic recording cartridge including magnetic recording medium having a variation in width22 Jul 2025US 12,367,906 B2Sony Group Corporation
- Magnetic recording medium having controlled change in average width and cartridge14 Jan 2025US 12,198,743 B2Sony Group Corporation
- Magnetic tape device comprising a characteristic magnetic head and a characteristic medium10 Sep 2024US 12,087,337 B2FUJIFILM Corporation
- Magnetic recording medium27 Aug 2024US 12,073,861 B2Sony Group Corporation
- Magnetic recording medium13 Aug 2026US 2026/0237402 A1Sony Group Corporation
- Magnetic recording medium6 Aug 2026US 2026/0229252 A1Sony Group Corporation
- Magnetic recording medium11 Jun 2026US 2026/0162677 A1Sony Group Corporation
- Magnetic tape and tape cartridge16 Apr 2026US 2026/0105930 A1Sony Group Corporation
- Magnetic recording medium and cartridge3 Jul 2025US 2025/0218459 A1Sony Group Corporation
Most cited
By later US patents
- Magnetic recording tape126US 6,228,461 B1Fuji Photo Film Co., Ltd. · 2001
- Polyester film and magnetic recording medium therefrom77US 4,590,119 AToray Industries, Inc. · 1986
- Biaxially oriented polyester film, process for producing the same, and magnetic recording medium77US 6,835,461 B1Toray Industries, Inc. · 2004
- Article with reduced friction polymer sheet support61US 4,568,598 AMinnesota Mining and Manufacturing Company · 1986
- Coated article having improved adhesion to organic coatings56US 5,639,546 AMinnesota Mining and Manufacturing Company · 1997