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. 02, 2015
Filed:
Feb. 16, 2011
Applicants:
Masataka Nakamura, Otsu, JP;
Rumiko Kitagawa, Otsu, JP;
Tsutomu Goshima, Otsu, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/04 (2006.01); G02B 1/10 (2006.01); C08F 290/06 (2006.01); G02C 7/04 (2006.01); A61F 2/14 (2006.01);
U.S. Cl.
CPC ...
G02B 1/10 (2013.01); A61F 2/14 (2013.01); A61F 2240/001 (2013.01); C08F 290/068 (2013.01); G02C 7/04 (2013.01); G02C 7/049 (2013.01);
Abstract
A low water content soft lens for eye is provided, which includes a layer made of an acidic polymer and a basic polymer on at least a part of a surface of a base material containing a polysiloxane compound. Adhesion of the lens to the cornea during wear, which has hitherto been regarded as a problem in a conventional low water content soft lens for eye, can be reduced or avoided when using the low water content soft lens.