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. 07, 2005
Filed:
Mar. 29, 2001
Haruhito Ono, Kanagawa, JP;
Takayuki Yagi, Kanagawa, JP;
Haruhito Ono, Kanagawa, JP;
Takayuki Yagi, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electron optical system has a plurality of electron lenses. The system includes a first electron optical system array having electrodes with a plurality of rectangular apertures, and a second electron optical system array having electrodes with a plurality of rectangular apertures. The first and second electron optical system arrays are arranged along an optical axis in which a long side of each aperture of the first electron optical system array is perpendicular to a long side of each aperture of the second electron optical system array.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile