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 Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Corp, Tokyo Shibaura Electric Co LtdfiledCriticalToshiba Corp
Priority to JP7295077ApriorityCriticalpatent/JPS547780A/en
Publication of JPS547780ApublicationCriticalpatent/JPS547780A/en
PURPOSE: To form a film on the inner surface of tubular bulb with a simple apparatus and process, by applying electrostatic coating on the inner surface of tubular bulb by injecting powder of fluorescent material or the like mixed with a predetermined amount of other kind of fine powdery material into the tubular bulb, and then electrostatically coating fine particles suspended in the bulb on the previously formed film.
COPYRIGHT: (C)1979,JPO&Japio
JP7295077A1977-06-201977-06-20Method of forming film on tubular bulb
PendingJPS547780A
(en)