IPC Main Group
G11B 9/00 Recording or reproducing using a method or means not covered by one of the main groups; Record carriers 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
6 direct subcodes
Child Classifications
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- G11B 9/02 using ferroelectric record carriers; Record carriers therefor
- G11B 9/04 using record carriers having variable electric resistance; Record carriers therefor
- G11B 9/06 using record carriers having variable electrical capacitance; Record carriers therefor
- G11B 9/08 using electrostatic charge injection; Record carriers therefor
- G11B 9/1 using electron beam; Record carriers therefor
- G11B 9/12 using near-field interactions; Record carriers therefor
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