having a cylindrical emissive surface

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CPC
H01J2223/05

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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2223/00Details of transit-time tubes of the types covered by group H01J2225/00

Current Industry

H01J2223/05having a cylindrical emissive surface

Industries

Patents Grantslast 30 patents

Information Patent Grant
Magnetron having a lowered oscillation frequency and processing equ...
- Patent number 6,653,788
- Issue date Nov 25, 2003
- Hitachi, Ltd.
- Toshio Ogura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Secondary emission cathode having supeconductive oxide material
- Patent number 5,348,934
- Issue date Sep 20, 1994
- Raytheon Company
- Beverley A. Shaw
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Magnetron having a lowered oscillation frequency and processing equ...
- Publication number 20020043937
- Publication date Apr 18, 2002
- Toshio Ogura
- H01 - BASIC ELECTRIC ELEMENTS