Sadao Matsumoto

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Impregnated-type cathode substrate with large particle diameter low...
- Patent number 6,447,355
- Issue date Sep 10, 2002
- Kabushiki Kaisha Toshiba
- Eiichirou Uda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Impregnated-type cathode substrate with large particle diameter low...
- Patent number 6,304,024
- Issue date Oct 16, 2001
- Kabushiki Kaisha Toshiba
- Eiichirou Uda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Impregnated type cathode assembly, cathode substrate for use in the...
- Patent number 6,034,469
- Issue date Mar 7, 2000
- Kabushiki Kaisha Toshiba
- Eiichirou Uda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Indirectly heated cathode assembly and its associated electron gun...
- Patent number 5,027,029
- Issue date Jun 25, 1991
- Kabushiki Kaisha Toshiba
- Toshiharu Higuchi
- H01 - BASIC ELECTRIC ELEMENTS