Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Lighting and Technology CorpfiledCriticalToshiba Lighting and Technology Corp
Priority to JP2172283ApriorityCriticalpatent/JPS59149645A/ja
Publication of JPS59149645ApublicationCriticalpatent/JPS59149645A/ja
Publication of JPH0440826B2publicationCriticalpatent/JPH0440826B2/ja
H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent