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Patent Searching and Data


Title:
MANUFACTURE OF CATHODE-RAY TUBE
Document Type and Number:
Japanese Patent JPH06215696
Kind Code:
A
Abstract:

PURPOSE: To provide a cathode-ray tube manufacturing method by which the service life of a cathode can be lengthened stably by adding aluminum oxide to an electrically conductive material.

CONSTITUTION: In a cathode-ray tube manufacturing method having a heat treatment process to seal and join a panel and a funnel where a coat of an electrically conductive material containing aluminum oxide is formed on an inner wall surface, an atmosphere in the funnel-panel sealed-joined body is ventilated by inactive gas in a temperature lowering process of the heat treatment process.


Inventors:
OGAWA SHINJI
KANNA KENICHI
NOGAMI YASUHIRO
Application Number:
JP423093A
Publication Date:
August 05, 1994
Filing Date:
January 13, 1993
Export Citation:
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Assignee:
SONY CORP
International Classes:
H01J9/26; (IPC1-7): H01J9/26
Attorney, Agent or Firm:
山口 邦夫 (外1名)