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:
Jul. 13, 2004
Filed:
Mar. 07, 2002
Applicant:
Inventors:
Hideo Kurokawa, Katano, JP;
Koji Akiyama, Neyagawa, JP;
Michiaki Watanabe, Ibaraki, JP;
Toshifumi Nakatani, Moriguchi, JP;
Hideo Suzuki, Hirakata, JP;
Shigeru Ohki, Habikino, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/907 ; H01J 2/981 ;
U.S. Cl.
CPC ...
H01J 2/907 ; H01J 2/981 ;
Abstract
An elastic support member or an elastic support member-holding plate is located substantially in the middle portion of a frame portion ( and ), and a shadow mask is constructed such that a tension in the middle portion of the shadow mask is larger than the tension in the edge portions of the shadow mask . In another aspect, a plurality of elastic support members are such that at least two elastic support members having substantially different spring constants are combined.