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. 07, 1989
Filed:
Nov. 30, 1987
Applicant:
Inventors:
Hiromistu Mastuno, Hachioji, JP;
Seiichi Murayama, Kokubunji, JP;
Tetsuo Ono, Kokubunji, JP;
Yoshio Watanabe, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313641 ; 313639 ; 313637 ; 313638 ; 315 99 ;
Abstract
Disclosed is a low-pressure discharge lamp comprising a discharge vessel defining an airtight space therein, at least one pair of electrodes disposed in the discharge vessel, and discharge gases enclosed in the discharge vessel, one of the electrodes which acts as an anode being located in a zone of negative glow.