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:
Jun. 29, 2004
Filed:
Jul. 18, 2001
Applicant:
Inventors:
Atsushi Takizawa, Kawasaki, JP;
Kotaro Shirabe, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/900 ;
U.S. Cl.
CPC ...
G06F 1/900 ;
Abstract
A calibration plate includes a first pattern in which bars and spaces are repeated, and a second pattern in which bars having an identical width to the spaces of the first pattern and spaces having an identical width to the bars of the first pattern are repeated, wherein the first pattern and the second pattern adjoin each other, and the bars and spaces of the first pattern and the bars and spaces of the second pattern are staggered.