The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2003
Filed:
Aug. 08, 2000
Koichi Nakamura, Shizuoka, JP;
Toshiaki Mitobe, Shizuoka, JP;
Kunimasa Mochizuki, Shizuoka, JP;
Makoto Michino, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A method for producing a light source bulb wherein a shielding film is formed on the outer peripheral face of a glass tube extending along a reference bulb axis, such that a coating for providing the shieiding film can be applied efficiently and precisely onto the outer peripheral face of the glass tube even though the shielding film is complicated in configuration. The method includes horizontally placing a light source bulb, vertically placing a coating discharging portion, moving a front edge face of the coating discharging portion close to the outer peripheral face of the shroud tube, and applying the coating by moving the coating discharging portion and the light source bulb relative to each other along a reference bulb axis and rotating the light source bulb upon the reference bulb axis while the coating is being discharged from the coating discharging portion.