IPC Subgroup
G11B 17/22 from random-access magazine of disc records
Introduced: September 1968
Last revised: January 2006
Full Title
Guiding record carriers not specifically of filamentary or web form, or of supports therefor > from random-access magazine of disc records
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
4 direct subcodes
Child Classifications
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- G11B 17/24 the magazine having a toroidal or part-toroidal shape
- G11B 17/26 the magazine having a cylindrical shape with vertical axis
- G11B 17/28 the magazine having a cylindrical shape with horizontal axis
- G11B 17/3 wherein the playing unit is moved accordingly to the location of the selected record
Top Applicants
Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 10,574
- SK HYNIX KR 9,138
- SAMSUNG ELECTRONICS COMPANY KR 9,004
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
- INTEL CORPORATION US 2,952
- SANDISK TECHNOLOGIES US 2,905
- WESTERN DIGITAL TECHNOLOGIES US 2,630
- TOSHIBA CORPORATION JP 2,593
- SEAGATE TECHNOLOGY US 2,472