CPC Subgroup
H01J 31/08 having a screen on or from which an image or pattern is formed, picked up, converted, or stored
Full Title
Cathode ray tubes; Electron beam tubes (H01J25/00, H01J33/00, H01J35/00, H01J37/00 take precedence; details of cathode ray tubes or of electron beam tubes H01J29/00) > having a screen on or from which an image or pattern is formed, picked up, converted, or stored
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01J 31/10 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 (tubes without defined electron beams and having a light ray scanning photo-emissive screen H01J40/20)
- H01J 31/49 Pick-up 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 31/50 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
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080