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:
May. 08, 1990
Filed:
Dec. 05, 1988
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250426 ; 2504 / ; 31323141 ;
Abstract
An apparatus for generating negatively charged species has a cathode and an anode which are disposed in a vacuum vessel facing each other. A constricted arc having a sufficiently large arc current is generated in an arc space between the anode and the cathode, thereby generating negatively charged species of various types of metals, semiconductors, and gases.
Toya, Hideaki. (1990). Apparatus for generating negatively charged species (U.S. Patent No. 4924102). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4924102
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile