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:
Nov. 15, 2016
Filed:
Feb. 21, 2012
Toshiyuki Morishita, Shibukawa, JP;
Yoshinori Terui, Shibukawa, JP;
Shimpei Hirokawa, Shibukawa, JP;
Toshiyuki Morishita, Shibukawa, JP;
Yoshinori Terui, Shibukawa, JP;
Shimpei Hirokawa, Shibukawa, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
The present invention is a charged-particle gun (EG) in which a negative electrode () and a positive electrode () are integrated and assembled in advance, and which can be stored and transported in a state in which the negative electrode and the positive electrode are integrated, wherein the negative electrode and the positive electrode are connected by a conductor () during storage and transportation of the charged-particle gun. It is thereby possible to prevent an electrode tip of the charged-particle gun from being damaged by electrical discharge caused by static electricity during storage and transportation.