IPC Subgroup
H01J 31/08 having a screen on or from which an image or pattern is formed, picked-up, converted, or stored
Introduced: September 1968
Last revised: January 2006
Full Title
Cathode-ray tubes; Electron-beam tubes > having a screen on or from which an image or pattern is formed, picked-up, converted, or stored
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01J 31/1 Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J 31/26 Image pick-up tubes having an input of visible light and electric output
- H01J 31/49 Pick-up tubes adapted for an input of electromagnetic radiation other than visible light and having an electric output, e.g. for an input of X-rays, for an input of infrared radiation
- H01J 31/495 Pick-up tubes adapted for an input of sonic, ultrasonic or mechanical vibrations and having an electric output
- H01J 31/5 Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J 31/58 Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634