CPC Subgroup
H01J 23/02 Electrodes; Magnetic control means; Screens (associated with resonator or delay system H01J23/16)
Full Title
Details of transit-time tubes of the types covered by group H01J25/00 > Electrodes; Magnetic control means; Screens (associated with resonator or delay system H01J23/16)
7 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01J 23/027 Collectors
- H01J 23/04 Cathodes
- H01J 23/06 Electron or ion guns
- H01J 23/08 Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J 23/09 Electric systems for directing or deflecting the discharge along a desired path, e.g. E-type (focusing arrangements H01J23/08)
- H01J 23/10 Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path (magnetic focusing arrangements H01J23/08)
- H01J 23/11 Means for reducing noise (in electron or ion gun H01J23/06)
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