Arrangement of the information on the record carrier, e.g. form of tracks

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor > Arrangement of the information on the record carrier, e.g. form of tracks

CPC:

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor (G11B11/00, G11B13/00 take precedence) > Arrangement of the information on the record carrier, e.g. form of tracks

CPC subdivides this area 10x more granularly than IPC with 9 additional codes.

9 codes are CPC-only extensions.

Note: 4 CPC extensions are marked as secondary classification only.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G11B 2007/00709 2nd only CPC only CPC only
G11B 2007/00727 2nd only CPC only CPC only
G11B 2007/00754 2nd only CPC only CPC only
G11B 2007/00763 2nd only CPC only CPC only
G11B 7/00718 CPC only CPC only
G11B 7/00736 CPC only CPC only
G11B 7/00745 CPC only CPC only
G11B 7/00772 +1 CPC CPC only CPC only
G11B 7/0079 CPC only CPC only
G11B 7/013 for discrete information, i.e. where each information unit is stored in a distinct discrete location since 1985 +2 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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