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. 07, 2003
Filed:
Nov. 14, 2001
Applicant:
Inventors:
Seiichi Sakawa, Gunma, JP;
Yoshinori Terui, Gunma, JP;
Assignee:
Denki Kagaku Kygyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/10 ;
U.S. Cl.
CPC ...
G09G 3/10 ;
Abstract
An S/N ratio of a probe current is measured while a filament current is changed, and the filament current in which the S/N ratio is maximal is determined.