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. 29, 1991
Filed:
Jun. 21, 1989
Applicant:
Inventors:
Yasuki Mori, Yokohama, JP;
Yasuhiro Iwafuji, Hayama, JP;
Yoichiro Mitsuyuki, Tokyo, JP;
Tadatoshi Higashi, Yokohama, JP;
Assignee:
Toshiba Lighting and Technology Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313641 ; 313637 ; 313620 ; 315350 ;
Abstract
Arc discharged by a short arc discharge lamp can be made so small in diameter as to appear like a spot. Therefore, the illuminance efficiency of the short arc discharge lamp can be made high and its brightness can also be enhanced.