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)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Image pick-up tubes having an input of visible light and electric output
CPC: 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)
Full Title
Full titles differ between systems:
Cathode-ray tubes; Electron-beam tubes > having a screen on or from which an image or pattern is formed, picked-up, converted, or stored > Image pick-up tubes having an input of visible light and electric output
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 > 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)
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01J 31/42 with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube IPC+CPC Available in IPC and CPC
- H01J 31/46 Tubes in which electrical output represents both intensity and colour of image IPC+CPC Available in IPC and CPC
- H01J 31/48 Tubes with amplification of output effected by electron multiplier arrangements within the vacuum space IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
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