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
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- 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 1/38 Exposure time
- 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
- SAMSUNG ELECTRONICS COMPANY KR 7,201
- PANASONIC INTELLECTUAL PROPERTY 6,828
- SEMICONDUCTOR ENERGY LABORATORY COMPANY 3,988
- LG ELECTRONICS KR 3,564
- PANASONIC INTELLECTUAL PROPERTY JP 3,533
- SAMSUNG DISPLAY KR 3,310
- FUJI JP 2,870
- SAMSUNG ELECTRO-MECHANICS COMPANY KR 2,675
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 2,665
- MURATA MANUFACTURING COMPANY JP 2,634