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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G11B 17/12

with axial transfer to the turntable from a stack with a vertical axis

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Guiding record carriers not specifically of filamentary or web form, or of supports therefor > from consecutive-access magazine of disc records > with axial transfer to the turntable from a stack with a vertical axis

CPC:

Guiding record carriers not specifically of filamentary or web form, or of supports therefor (guiding cards or sheets G06K13/00) > from consecutive-access magazine of disc records > with axial transfer to the turntable from a stack with a vertical axis

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

Child Classifications

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  • G11B 17/14 by mechanism in rotating centre post, e.g. permitting the playing of both sides of a record IPC+CPC Available in IPC and CPC
  • G11B 17/18 by mechanism operating on the edge of the disc record IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G11,2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 10,574
  2. SK HYNIX KR 9,138
  3. SAMSUNG ELECTRONICS COMPANY KR 9,004
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
  5. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
  6. INTEL CORPORATION US 2,952
  7. SANDISK TECHNOLOGIES US 2,905
  8. WESTERN DIGITAL TECHNOLOGIES US 2,630
  9. TOSHIBA CORPORATION JP 2,593
  10. SEAGATE TECHNOLOGY US 2,472

Top Applicants (CPC)

Class G11,2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 12,397
  2. SAMSUNG ELECTRONICS COMPANY KR 12,238
  3. SK HYNIX KR 11,371
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
  5. INTEL CORPORATION US 3,874
  6. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
  7. SANDISK TECHNOLOGIES US 3,151
  8. SK HYNIX 3,143
  9. SAMSUNG ELECTRONICS COMPANY 3,073
  10. WESTERN DIGITAL TECHNOLOGIES US 2,961