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:
Jan. 07, 1986
Filed:
Mar. 23, 1983
Nissin-High Voltage Co., Ltd., Kyoto, JP;
Abstract
A negative-ion source comprising means for discharging alkaline metal for discharging neutral alkaline metal particles together with alkaline metal ion particles; an electrode for generating negative ions which can serve as an extraction electrode for extracting said alkaline metal ion particles and a target bombarded with said alkaline metal ion particles and which provides with a hold for holding negative-ion seed material in the portion bombarded with said alkaline metal ion particles and an aperture for letting out negative-ion particles; and a negative-ion extraction electrode for said negative-ion particles. The present negative-ion source has an improved ion current efficiency and is compact size.