CPC Subgroup
G11B 5/48 Disposition or mounting of heads relative to record carriers
Full Title
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (G11B11/00 take precedence) > Disposition or mounting of heads relative to record carriers
8 direct subcodes
Child Classifications
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- G11B 5/49 Fixed mounting
- G11B 5/50 Interchangeable mountings, e.g. for replacement of head without readjustment
- G11B 5/52 with simultaneous movement of head and record carrier, e.g. rotation of head (G11B5/588 takes precedence)
- G11B 5/54 with provision for moving the head into or out of its operative position or across tracks
- G11B 5/56 with provision for moving the head for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering ( G11B5/54, G11B5/58 take precedence)
- G11B 5/58 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
Top Applicants
Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 12,397
- SAMSUNG ELECTRONICS COMPANY KR 12,238
- SK HYNIX KR 11,371
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
- INTEL CORPORATION US 3,874
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
- SANDISK TECHNOLOGIES US 3,151
- SK HYNIX 3,143
- SAMSUNG ELECTRONICS COMPANY 3,073
- WESTERN DIGITAL TECHNOLOGIES US 2,961