Magnetic tape including characterized magnetic layer, tape cartridge, recording and reproducing device, and method of manufacturing
US-10522180-B2 · Dec 31, 2019 · US
characterised by the lubricant
characterised by the lubricant · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G11B5/71 |
| Official title | characterised by the lubricant |
| Display label | characterised by the lubricant |
| Total patents | 208 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 9 |
| 2017 | 19 |
| 2018 | 19 |
| 2019 | 35 |
| 2020 | 31 |
| 2021 | 25 |
| 2022 | 29 |
| 2023 | 21 |
| 2024 | 10 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic tape including characterized magnetic layer and magnetic tape device
US-10510370-B2 · Dec 17, 2019 · US
Magnetic tape device, magnetic reproducing method, and head tracking servo method
US-10490220-B2 · Nov 26, 2019 · US
Magnetic tape having characterized magnetic layer
US-10453488-B2 · Oct 22, 2019 · US
Magnetic tape having characterized magnetic layer
US-10438625-B2 · Oct 8, 2019 · US
Magnetic tape having characterized magnetic layer
US-10438624-B2 · Oct 8, 2019 · US
Magnetic recording medium, manufacturing method of particles of epsilon type iron oxide-based compound, and manufacturing method of magnetic recording medium
US-2019304496-A1 · Oct 3, 2019 · US
Magnetic tape and magnetic recording and reproducing device
US-2019295587-A1 · Sep 26, 2019 · US
Heat-assisted removal of head contamination
US-10373632-B2 · Aug 6, 2019 · US
Magnetic recording medium and magnetic recording and reproducing device
US-2019103133-A1 · Apr 4, 2019 · US
Magnetic recording medium and magnetic recording and reproducing device
US-2019103134-A1 · Apr 4, 2019 · US
Magnetic recording medium
US-2019027178-A1 · Jan 24, 2019 · US
Magnetic tape device, magnetic reproducing method, and head tracking servo method
US-10134433-B2 · Nov 20, 2018 · US
Magnetic tape and method of manufacturing the same
US-2018301165-A1 · Oct 18, 2018 · US
Magnetic tape device, magnetic reproducing method, and head tracking servo method
US-2018286444-A1 · Oct 4, 2018 · US
Magnetic tape
US-2018286443-A1 · Oct 4, 2018 · US
Magnetic tape device and head tracking servo method
US-2018286453-A1 · Oct 4, 2018 · US
Magnetic recording medium and magnetic recording and reproducing apparatus
US-10074396-B2 · Sep 11, 2018 · US
Magnetic tape
US-2018240491-A1 · Aug 23, 2018 · US
Magnetic tape
US-2018240490-A1 · Aug 23, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G11B5/71?
- CPC G11B5/71 is the Cooperative Patent Classification code for “characterised by the lubricant.”
- How many patents are filed under CPC G11B5/71 (characterised by the lubricant)?
- Our database includes 208 publications tagged with this CPC code.
- Is patent activity under CPC G11B5/71 growing?
- Publication counts under this code: 10 in 2024 vs 7 in 2025 (latest complete years).