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:
Apr. 02, 2002
Filed:
Jan. 21, 1999
Applicant:
Inventors:
Kazuo Kuroda, Atsugi, JP;
Hiroshi Takagi, Yokohama, JP;
Takao Kusaka, Yokohama, JP;
Hiromitsu Takase, Sagamihara, JP;
Noriaki Ohguri, Zama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/910 ;
U.S. Cl.
CPC ...
H01J 1/910 ;
Abstract
An electron beam apparatus includes an electron source and a radiative member on which electrons emitted from the electron source are radiated. In addition, a member is provided between the electron source and the radiative member, with the member having an electroconductive first member and a second member formed on the first member to partially exposed the first member.