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:
Oct. 21, 2003
Filed:
Jul. 30, 2001
Applicant:
Inventors:
Munechika Tani, Konosu, JP;
Naoyuki Makino, Kumagaya, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/907 ;
U.S. Cl.
CPC ...
H01J 2/907 ;
Abstract
A mask frame comprises a sidewall portion in the form of a rectangular frame including a pair of long sidewalls opposed to each other, a pair of short sidewalls opposed to each other, and corner sidewalls between the long and short sidewalls, and a base portion extending from the sidewall portion toward the center of the rectangular frame. The base portion has beads located near the corner sidewalls and connecting the long and short sidewalls.