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CPC Subgroup Additional Only
H01J 2229/0755

characterised by aperture shape

Full Title

Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Shadow masks > Aperture plate > Beam passing apertures, e.g. geometrical arrangements > characterised by aperture shape

1 direct subcode

Child Classifications

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  • H01J 2229/0761 Uniaxial masks having parallel slit apertures, i.e. Trinitron type

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080