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:
Sep. 27, 1988
Filed:
Apr. 09, 1987
Applicant:
Inventors:
Yoshinori Ikebe, Katsuta, JP;
Hifumi Tamura, Hachioji, JP;
Hiroyasu Shichi, Kokubunji, JP;
Eiichi Izumi, Takahagi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
3133621 ; 3133631 ; 313550 ; 31511181 ; 2504 / ;
Abstract
A mixture of an alkali metal compound and its reducing agent is heated by a heating means, whereby alkali metal vapors are generated and stored in a vapor reserver. The thus stored vapors permeate through a porous member heated by another heating means and are ionized. The thus formed ions are withdrawn by an ion withdrawal means.