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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.:

US 9878473 B1

PDFFull Text
Expired
Date of Patent:
Jan. 30, 2018

Filed:

Jun. 17, 2013

Multilayer contact lens and production process therefor

Applicant:

Menicon Nect Co., Ltd., Aichi, JP;

Inventor:

Yasuhiko Katou, Aichi, JP;

Assignee:

MENICON NECT CO., LTD, Aichi, JP;

Attorney:

Maier & Maier, PLLC

Primary Examiner:

Mathieu Vargot

Int. Cl.
CPC ...
B29D 11/00 (2006.01); B29C 43/14 (2006.01); B29C 39/12 (2006.01); G02C 7/04 (2006.01); B29C 39/02 (2006.01); B29C 43/36 (2006.01); B29K 83/00 (2006.01); B29K 105/00 (2006.01); B29L 9/00 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
B29C 43/146 (2013.01); B29C 39/025 (2013.01); B29C 39/12 (2013.01); B29C 43/36 (2013.01); B29D 11/00048 (2013.01); B29D 11/0073 (2013.01); B29D 11/00923 (2013.01); G02C 7/049 (2013.01); B29C 2043/147 (2013.01); B29D 11/00192 (2013.01); B29K 2083/005 (2013.01); B29K 2105/0002 (2013.01); B29K 2105/0061 (2013.01); B29K 2995/0092 (2013.01); B29L 2009/00 (2013.01); B29L 2009/005 (2013.01); B29L 2011/0041 (2013.01); G02C 2202/16 (2013.01);
Abstract

A method for manufacturing a contact lens having a multilayer structure using a mold, includes: (a) charging a first polymerizing composition into a space formed by combining a first mold with a second mold, and polymerizing a first semi product having a thinner thickness and a smaller outer diameter than those of a contact lens immediately before being removed from the molds after all polymerizing processes; (b) opening the first and second molds; and (c) charging a second polymerizing composition into a space formed by combining a third mold with one of the first and second mold, the first semi product fixed onto the one of the first and second molds, and polymerizing the second polymerizing composition.

Find Patent Forward Citations

Katou, Yasuhiko. (2018). Multilayer contact lens and production process therefor (U.S. Patent No. 9878473). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9878473

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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