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, 1999
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428451 ; 427164 ; 4272556 ; 4272557 ; 427578 ; 428515 ;
Abstract
The invention provides a commercially feasible method of manufacturing a photochromic lens on a large scale. The method involves vacuum depositing a photochromic material onto a surface of a plastic lens to form a photchromic depositied lens, and heating the photochromic deposited lens for a time and at a temperature sufficient to allow the photochromic material to permeate the lens.
Quick Actions:
Ono, Ichiro. (1999). Photochromic plastic lens and its method of manufacture (U.S. Patent No. 5914193). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5914193
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile