IPC Main Group
G11B 17/00 Guiding record carriers not specifically of filamentary or web form, or of supports therefor
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
Related Keywords
guiding, driving, or operation control of magnetic CARD(S)record changing or driving mechanisms for JUKE-BOXESMAGAZINES for disc type record carriersPLAYING -units in information-recording apparatus
5 direct subcodes
Child Classifications
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- G11B 17/02 Details
- G11B 17/08 from consecutive-access magazine of disc records
- G11B 17/22 from random-access magazine of disc records
- G11B 17/32 Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
- G11B 17/34 Guiding record carriers during transducing operation, e.g. for track following
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