G11B 5/7022
Containing mixtures of polyurethanes or polyisocyanates with other polymers
Official title: {containing mixtures of polyurethanes or polyisocyanates with other polymers}
G11B5/7022 (Containing mixtures of polyurethanes or polyisocyanates with other polymers) appears on 220 US grants and 57 published applications in this corpus.
Search patents in G11B- Granted patents
- 220
- Published applications
- 57
- Assignees
- 43
- Inventors
- 350
- Latest grant
- 27 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 9 | 0 |
| 1983 | 14 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 11 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 14 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 3 | 6 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 16 |
| 2021 | 8 | 6 |
| 2022 | 14 | 5 |
| 2023 | 5 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic recording medium27 Aug 2024US 12,073,861 B2Sony Group Corporation
- Magnetic recording medium29 Aug 2023US 11,741,991 B2Sony Corporation
- Hexagonal strontium ferrite powder, magnetic recording medium, and magnetic recording and reproducing apparatus18 Jul 2023US 11,705,156 B2FUJIFILM Corporation
- Magnetic recording medium11 Apr 2023US 11,626,128 B2Sony Group Corporation
- Magnetic recording medium28 Mar 2023US 11,615,812 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 recording medium31 Aug 2023US 2023/0274764 A1Sony Corporation
- Magnetic recording medium13 Oct 2022US 2022/0328066 A1Sony Group Corporation
Most cited
By later US patents
- Carboxylic-acid functional polyurethane polymers and their use in magnetic recording media58US 5,661,207 AMinnesota Mining and Manufacturing Company · 1997
- Magnetic recording medium57US 4,152,485 AToyo Boseki Kabushiki Kaisha · 1979
- Magnetic recording medium50US 4,784,914 AFuji Photo Film Co., Ltd. · 1988
- Magnetic recording medium41US 4,439,486 AFuji Photo Film Co., Ltd. · 1984
- Magnetic recording medium35US 4,865,924 AFuji Photo Film Co., Ltd. · 1989