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. 09, 1990
Filed:
Apr. 28, 1988
Applicant:
Inventors:
Takeyuki Sawamoto, Tokyo, JP;
Koichi Ishida, Akishima, JP;
Niro Tarumi, Akishima, JP;
Tetsuro Izumitani, Hino, JP;
Assignee:
Hoya Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
3511 / ; 427 541 ; 427112 ; 427164 ;
Abstract
A contact lens is made hydrophilic by contacting the lens with a treating solution containing a hydrophilic monomer, at least one photosensitizer selected from aromatic ketones or quinones, and a sovlent, and thereafter irradiating the contact lens with ultraviolet light.