Patents by Inventor Miyuki Kamiya

Miyuki Kamiya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Water-absorptive soft contact lens
    Patent number: 5741830
    Abstract: A water-absorptive soft contact lens comprising a polymer prepared by polymerizing a monomer mixture comprising (A) a fluorine-containing styrene derivative represented by the general formula (I): ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, m is an integer of 1 to 3 and n is 0 or an integer of 1 to 7, and (B) N, N-dimethyl(meth)acrylamide. The water-absorptive soft contact lens has excellent oxygen permeability, high mechanical strength and excellent flexibility independent of water content.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: April 21, 1998
    Assignee: Menicon Co., Ltd.
    Inventors: Miyuki Kamiya, Naotaka Kamiya, Noriko Iwata, Yasushi Yamamoto, Yasuo Tarumi