JPS54561A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Cathode ray tube of projection type
Assignee: Hitachi Ltd
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Filing: 1977-06-03
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Granted: —
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Expires: 1997-06-03
Abstract
Abstract PURPOSE: To remarkably increase the luminance and picture quality, by obtaining stable forcus performance and fine beam spot diameter, through adjusting electrostatic focusing lens system and electromagnetic focusing lens system. COPYRIGHT: (C)1979,JPO&Japio
Inventors
- 👤 Mitsuru Otake
- 👤 Masanobu Takada
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-10 02:34
CPC Classifications
—
Claims Analysis
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References Cited (Backward Citations)
JPS5173380A
Cited
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