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:
Dec. 27, 1988
Filed:
Nov. 29, 1985
Applicant:
Inventors:
Tetsuo Suzuki, Tokyo, JP;
Toshiharu Yamashita, Tokyo, JP;
Assignee:
Hoya Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
351163 ; 65 3011 ; 351165 ; 351177 ;
Abstract
An tinted eyeglass lens having a photochromic gradient and a process for producing the same are disclosed. The photochromic gradient is provided by changing the particle diameter of silver halide particles in the face direction of the glass.