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:
Dec. 27, 2005
Filed:
Jul. 08, 2002
Applicants:
Yoshihisa Yonezawa, Mobara, JP;
Yukio Ogawa, Mobara, JP;
Shogo Ishige, Mobara, JP;
Inventors:
Assignee:
Futaba Corporation, Mobara, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J019/70 ;
U.S. Cl.
CPC ...
Abstract
A fluorescent luminous tube is provided that has a getter mirror film formed in an arbitrary shape by illuminating a laser beam onto a getter. In order to form the getter film, the rectangular ring-less gettermounted on the anode substrateis irradiated with the laser beam L from the outside of the front substrateand thus is evaporated. In this process, when the illumination spot of the laser beam L is moved along the scanning line, the rectangular getter mirror filmis formed around the scanning line. The burnt region, which has the same shape and size as those of the scanning line, is formed using the laser beam L.