Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
H05G 1/3

Controlling

Introduced: September 1968

Last revised: January 2006

Full Title

X-ray apparatus involving X-ray tubes; Circuits therefor > Electrical details > Measuring, controlling or protecting > Controlling

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Subclass:
X-RAY TECHNIQUE

8 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • H05G 1/32 Supply voltage of the X-ray apparatus or tube
  • H05G 1/34 Anode current, heater current or heater voltage of X-ray tube
  • H05G 1/36 Temperature of anode; Brightness of image
  • H05G 1/46 Combined control of different quantities, e.g. exposure time as well as voltage or current
  • H05G 1/48 Compensating the voltage drop occurring at the instant of switching-on of the apparatus
  • H05G 1/5 Passing the tube current only during a restricted portion of the voltage waveform
  • H05G 1/52 Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode

Top Applicants

Top 10 applicants by patent filingsfor class H05, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 7,201
  2. PANASONIC INTELLECTUAL PROPERTY 6,828
  3. SEMICONDUCTOR ENERGY LABORATORY COMPANY 3,988
  4. LG ELECTRONICS KR 3,564
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,533
  6. SAMSUNG DISPLAY KR 3,310
  7. FUJI JP 2,870
  8. SAMSUNG ELECTRO-MECHANICS COMPANY KR 2,675
  9. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 2,665
  10. MURATA MANUFACTURING COMPANY JP 2,634