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:
Nov. 19, 2002
Filed:
May. 03, 2000
Applicant:
Inventors:
Tetsuo Matsuba, Osaka, JP;
Shinichiro Ishitsuka, Osaka, JP;
Shiro Iida, Osaka, JP;
Masaru Oyaizu, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 9/30 ;
U.S. Cl.
CPC ...
H01J 9/30 ;
Abstract
A method for producing a lamp includes forming a tubular portion that is protruded in an end of an eyelet of a base of a lamp; drawing a lead wire for supplying power out of the tubular portion; and fusing the lead wire and the tubular portion with the eyelet by plasma arc welding. This ensures that plasma arc can be discharged to the protruded tubular portion, and therefore the tubular portion and the lead wire are fused with the eyelet of the base satisfactorily and stably. In the present invention, a tubular sleeve can be used in place of the tubular portion.