Shizuka Ishibashi

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Hachioji, JA

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for controlling electron beam quantity in camera...
- Patent number 3,999,011
- Issue date Dec 21, 1976
- Hitachi, Ltd.
- Kazuhiro Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of and apparatus for controlling amount of electron beam in...
- Patent number 3,975,657
- Issue date Aug 17, 1976
- Hitachi, Ltd.
- Kazuhiro Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE