G11B 9/00 Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor (G11B11/00 takes precedence )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Recording or reproducing using a method or means not covered by one of the main groups; Record carriers therefor
CPC: Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor (G11B11/00 takes precedence )
Full Title
Full titles differ between systems:
Recording or reproducing using a method or means not covered by one of the main groups; Record carriers therefor
Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor (G11B11/00 takes precedence )
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G11B 9/02 using ferroelectric record carriers; Record carriers therefor IPC+CPC Available in IPC and CPC
- G11B 9/04 using record carriers having variable electric resistance; Record carriers therefor IPC+CPC Available in IPC and CPC
- G11B 9/06 using record carriers having variable electrical capacitance; Record carriers therefor (G11B9/02 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
- G11B 9/08 using electrostatic charge injection; Record carriers therefor IPC+CPC Available in IPC and CPC
- G11B 9/10 using electron beam; Record carriers therefor (G11B9/08 takes precedence ) since 1985 IPC+CPC Available in IPC and CPC
- G11B 9/12 using near-field interactions; Record carriers therefor since 2000 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