Method for producing ring-shaped object, film-forming device, ring-shaped object, and hard disk drive device
US-2024208859-A1 · Jun 27, 2024 · US
Centering or locking of a plurality of discs in a single cartridge
Centering or locking of a plurality of discs in a single cartridge · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G11B17/038 |
| Official title | Centering or locking of a plurality of discs in a single cartridge |
| Display label | Centering or locking of a plurality of discs in a single cartridge |
| Total patents | 80 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 11 |
| 2024 | 15 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device
US-11999652-B2 · Jun 4, 2024 · US
Spacer and hard disk drive device
US-2023368815-A1 · Nov 16, 2023 · US
Hard disk drive multiple contact disk clamp
US-2023352048-A1 · Nov 2, 2023 · US
Hard disk drive multiple contact disk spindle motor hub flange
US-2023352047-A1 · Nov 2, 2023 · US
Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
US-2023306996-A1 · Sep 28, 2023 · US
Disk clamp and disk device
US-2023230619-A1 · Jul 20, 2023 · US
Method for manufacturing ring-shaped glass spacer
US-11705158-B2 · Jul 18, 2023 · US
Method for manufacturing glass spacer, glass spacer, and hard disk drive device
US-2023223047-A1 · Jul 13, 2023 · US
Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
US-11688424-B2 · Jun 27, 2023 · US
Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device
US-2023192530-A1 · Jun 22, 2023 · US
Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer
US-11682425-B2 · Jun 20, 2023 · US
Disk hub for retaining magnetic recording media for film thickness measurement
US-11651793-B1 · May 16, 2023 · US
Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
US-2022277768-A1 · Sep 1, 2022 · US
Method for manufacturing ring-shaped glass spacer
US-2022157340-A1 · May 19, 2022 · US
Glass spacer and hard disk drive apparatus
US-11244706-B2 · Feb 8, 2022 · US
Spacer and hard disk drive apparatus
US-11238895-B2 · Feb 1, 2022 · US
Data storage device with composite spacer for disk stack assembly
US-11227634-B1 · Jan 18, 2022 · US
Data storage device with composite spacer for disk stack assembly
US-2021407551-A1 · Dec 30, 2021 · US
Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer
US-2021264946-A1 · Aug 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G11B17/038?
- CPC G11B17/038 is the Cooperative Patent Classification code for “Centering or locking of a plurality of discs in a single cartridge.”
- How many patents are filed under CPC G11B17/038 (Centering or locking of a plurality of discs in a single cartridge)?
- Our database includes 80 publications tagged with this CPC code.
- Is patent activity under CPC G11B17/038 growing?
- Publication counts under this code: 15 in 2024 vs 6 in 2025 (latest complete years).