Patents by Inventor Sadanori Oono

Sadanori Oono 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).

  • Ocular lens materials and process for producing the same
    Patent number: 6727336
    Abstract: An ocular lens material comprising a siloxane-containing polymer obtained by polymerizing a monomer mixture containing (A) a siloxane macromonomer having at least two active unsaturated groups and a number average molecular weight of 2,000 to 100,000; and (B) a vinyl ester of lower fatty acid as essential components. An ocular lens material comprising a polymer obtained by saponification of the siloxane-containing polymer. Processes for producing the ocular lens materials. The ocular lens materials are excellent not only in lipid-stain resistance, wettability and oxygen permeability, but also in flexibility, particularly, shape recovery at the same time.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: April 27, 2004
    Assignee: Menicon Co., Ltd.
    Inventors: Eri Ito, Tetsuji Kawai, Sadanori Oono, Kazuhiko Nakada, Misako Nishibayashi
  • Ocular lens material and process for producing the same
    Publication number: 20040054106
    Abstract: An ocular lens material comprising a siloxane-containing polymer obtained by polymerizing a monomer mixture containing (A) a siloxane macromonomer having at least two active unsaturated groups and a number average molecular weight of 2,000 to 100,000; and (B) a vinyl ester of lower fatty acid as essential components. An ocular lens material comprising a polymer obtained by saponification of the siloxane-containing polymer. Processes for producing the ocular lens materials. The ocular lens materials are excellent not only in lipid-stain resistance, wettability and oxygen permeability, but also in flexibility, particularly, shape recovery at the same time.
    Type: Application
    Filed: August 21, 2003
    Publication date: March 18, 2004
    Applicant: Menicon Co., Ltd.
    Inventors: Eri Ito, Tetsuji Kawai, Sadanori Oono, Kazuhiko Nakada, Misako Nishibayashi
  • WATER-SOLUBLE ANTIBACTERIAL POLYMER AND LIQUID FORMULATION COMPRISING IT FOR CONTACT LENSES
    Publication number: 20010055603
    Abstract: It is an object of the present invention to provide a water-soluble antibacterial polymer having an excellent antibacterial property and stability, and a liquid formulation comprising it for contact lenses, which is suitably used for disinfection or preservation of contact lenses.
    Type: Application
    Filed: November 12, 1998
    Publication date: December 27, 2001
    Inventors: KAZUHIKO NAKADA, SADANORI OONO
  • Water -soluble antibacterial polymer and liquid formulation comprising it for contact lenses
    Publication number: 20010016190
    Abstract: It is an object of the present invention to provide a water-soluble antibacterial polymer having an excellent antibacterial property and stability, and a liquid formulation comprising it for contact lenses, which is suitably used for disinfection or preservation of contact lenses.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 23, 2001
    Applicant: MENICON CO., LTD.
    Inventors: Kazuhiko Nakada, Sadanori Oono