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:
Jun. 22, 1982
Filed:
Oct. 31, 1979
Churyo Kodama, Ohme, JP;
Taisuke Hirota, Hachioji, JP;
Hiroshi Ohno, Ohme, JP;
Etsuo Urataki, Ohme, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A fluorescent lamp with reflective layer of the present invention has a first phosphor layer and a second phosphor layer which are partially laminated. The first phosphor layer is formed on the whole inner surface of the glass tube, and the second phosphor layer is formed on the first phosphor layer at a predetermined angle of reflection along the axial direction of the glass tube. The laminated portions of the first and second phosphor layers substantially form a reflective layer, and the other portions form a transmitting layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile