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IPC Subgroup
H01J 35/24

Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof

Introduced: September 1968

Last revised: January 2006

Full Title

X-ray tubes > Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

3 direct subcodes

Child Classifications

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  • H01J 35/26 by rotation of the anode or anticathode
  • H01J 35/28 by vibration, oscillation, reciprocation, or swash-plate motion of the anode or anticathode
  • H01J 35/3 by deflection of the cathode ray

Top Applicants

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

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634