Patents by Inventor Kohsuke Satake

Kohsuke Satake 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).

  • Publication number: 20210163650
    Abstract: A silicone-containing polymer material containing an internal wetting agent and being excellent in transparency, the silicone-containing polymer material being improved in antifouling property against lipids. The polymer material of the present invention is a polymer material, which is obtained by polymerizing a polymerizable mixture containing monomer components (a) and a hydrophilic polymer component (b), wherein the monomer components (a) include a silicone-containing monomer (a-1) having a siloxane bond and being free of any hydroxyl group, and a compatibilizing monomer (a-2) having a hydrogen bonding proton-containing group and being free of any silicon atom, and wherein the compatibilizing monomer has four or more carbon atoms, excluding carbon atoms contained in a polymerizable functional group, and has a solubility of less than 0.03 g/mL in water at 25° C.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 3, 2021
    Applicant: MENICON CO., LTD.
    Inventors: Kohsuke SATAKE, Kengo ASAI, Kazuhiro SUNAHARA, Yurika SATAKE
  • Patent number: 9657131
    Abstract: An ophthalmic lens which gives excellent wearing comfort required for its use as a contact lens, and which has sufficiently high flexibility and an adequate degree of deformation recovery property required for its use as an intraocular lens. The ophthalmic lens is formed of a polymer having a young's modulus of 0.3-1.0 MPa and a stress relaxation rate of 10-20%.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 23, 2017
    Assignee: MENICON CO., LTD.
    Inventor: Kohsuke Satake
  • Patent number: 9650473
    Abstract: A polysiloxane-based macromonomer for an ophthalmic lens, which exhibits excellent compatibility with respect to a hydrophilic component such as a hydrophilic monomer. The polysiloxane-based macromonomer has at least one polymerizable group, a polysiloxane chain having a siloxane unit as a repeating unit, a polyoxyethylene chain in which a number of repetition of an oxyethylene group is two or more, and a polyoxyalkylene chain having an oxyalkylene group other than the oxyethylene group as a repeating unit, wherein an HLB value calculated according to a formula: [HLB value]=E/5 is within a range from 0.7 to 6.0, wherein E represents a weight fraction (wt %) of the oxyethylene group in a molecule of the polysiloxane-based macromonomer.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 16, 2017
    Assignees: MENICON CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kohsuke Satake, Shoji Ichinohe
  • Publication number: 20160289368
    Abstract: An ophthalmic lens which gives excellent wearing comfort required for its use as a contact lens, and which has sufficiently high flexibility and an adequate degree of deformation recovery property required for its use as an intraocular lens. The ophthalmic lens is formed of a polymer having a young's modulus of 0.3-1.0 MPa and a stress relaxation rate of 10-20%.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 6, 2016
    Applicant: MENICON CO., LTD.
    Inventor: Kohsuke SATAKE
  • Publication number: 20160272766
    Abstract: A polysiloxane-based macromonomer for an ophthalmic lens, which exhibits excellent compatibility with respect to a hydrophilic component such as a hydrophilic monomer. The polysiloxane-based macromonomer has at least one polymerizable group, a polysiloxane chain having a siloxane unit as a repeating unit, a polyoxyethylene chain in which a number of repetition of an oxyethylene group is two or more, and a polyoxyalkylene chain having an oxyalkylene group other than the oxyethylene group as a repeating unit, wherein an HLB value calculated according to a formula: [HLB value]=E/5 is within a range from 0.7 to 6.0, wherein E represents a weight fraction (wt %) of the oxyethylene group in a molecule of the polyxiloxane-based macromonomer.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Applicants: MENICON CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kohsuke SATAKE, Shoji ICHINOHE
  • Patent number: 9017716
    Abstract: The present invention is directed to an ophthalmic lens integrally formed with a hydrogel, the hydrogel including a copolymer obtained from a composition containing (A) an ionic compound including a cation having a polymerizable functional group, and a fluorine-containing anion (hereinafter, referred to as (A) ionic compound), and (B) a hydrophilic compound having a polymerizable functional group.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: April 28, 2015
    Assignee: Menicon Co., Ltd.
    Inventor: Kohsuke Satake
  • Patent number: 8523878
    Abstract: A method of producing a medical instrument whereby a highly hydrophilic and lubricant coating layer having a high durability can be formed by a simple technique and thus highly hydrophilic and lubricant properties can be imparted to a surface of a medical instrument. An intraocular lens insertion instrument having been subjected to a surface treatment as described above is also provided. The method includes preparing a coating solution by mixing at least a water-insoluble polymer having carboxyl group and a polyfunctional reactive compound with an organic solvent; applying this solution on the surface of the medical instrument; conducting crosslinking; and performing a chemical reaction process. The coating layer is made hydrophilic. The intraocular lens insertion instrument is made hydrophilic by forming the coating layer as described above on an inner surface of an insertion tube portion, crosslinking and then performing the chemical reaction process.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: September 3, 2013
    Assignee: Kowa Company, Ltd.
    Inventors: Kohsuke Satake, Kazuharu Niwa, Ryo Matsushita, Yasuhiko Suzuki, Hiroko Nomura, Kazuhiko Nakada
  • Publication number: 20130202551
    Abstract: An ionic compound capable of providing a cured material having superior antibacterial property and oxygen permeability, and a composition containing the ionic compound, and a cured material, a hydro gel and an ophthalmic lens which have long-term sustainable antibacterial property and superior oxygen permeability. The ionic compound is represented by the following formula (1): In formula (1), P represents a polymerizable functional group. Q+ represents a cationic group: Z represents an n-valent siloxanyl group in which the total atomic weight of a group of constituent atoms is no less than 70 and no greater than 1,000; Xm? represents an m-valent anion; and n is an integer of 1 to 10, where provided that n is no less than 2, a plurality of P3 and Q+3 are each independently as defined above.
    Type: Application
    Filed: June 14, 2010
    Publication date: August 8, 2013
    Inventors: Kohsuke Satake, Susumu Ogawa
  • Publication number: 20120148519
    Abstract: The present invention is directed to an ophthalmic lens integrally formed with a hydrogel, the hydrogel including a copolymer obtained from a composition containing (A) an ionic compound including a cation having a polymerizable functional group, and a fluorine-containing anion (hereinafter, referred to as (A) ionic compound), and (B) a hydrophilic compound having a polymerizable functional group.
    Type: Application
    Filed: July 6, 2010
    Publication date: June 14, 2012
    Applicant: MENICON CO., LTD.
    Inventor: Kohsuke Satake
  • Publication number: 20100312255
    Abstract: A method of producing a medical instrument whereby a highly hydrophilic and lubricant coating layer having a high durability can be formed by a simple technique and thus highly hydrophilic and lubricant properties can be imparted to a surface of a medical instrument. An intraocular lens insertion instrument having been subjected to a surface treatment as described above is also provided. The method comprises the steps of: preparing a coating solution by mixing at least a water-insoluble polymer having carboxyl group and a polyfunctional reactive compound with an organic solvent; applying this solution on the surface of the medical instrument; conducting crosslinking; and performing a chemical reaction process whereby the coating layer is made hydrophilic. The intraocular lens insertion instrument is made hydrophilic by forming the coating layer as described above on an inner surface of an insertion tube portion, crosslinking and then performing the chemical reaction process.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 9, 2010
    Applicant: MENICON CO., LTD.
    Inventors: Kohsuke Satake, Kazuharu Niwa, Ryo Matsushita, Yasuhiko Suzuki, Hiroko Nomura, Kazuhiko Nakada
  • Patent number: 7662937
    Abstract: A novel benzophenone type polymerizable dye containing a urethane bond and an ophthalmic lens containing the said polymerizable dye are disclosed. The benzophenone type polymerizable dye is shown by the following general formula (1) (wherein R1 and R2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m and n are respectively and independently an integer of 0 to 18. R3 is any of a polymerizable functional group of a vinyl group, an acryloyl group or a methacryloyl group).
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: February 16, 2010
    Assignee: Menicon Co., Ltd.
    Inventors: Kohsuke Satake, Kazuharu Niwa
  • Publication number: 20090082553
    Abstract: A novel benzophenone type polymerizable dye containing a urethane bond and an ophthalmic lens containing the said polymerizable dye are disclosed. The benzophenone type polymerizable dye is shown by the following general formula (1) (wherein R1 and R2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m and n are respectively and independently an integer of 0 to 18. R3 is any of a polymerizable functional group of a vinyl group, an acryloyl group or a methacryloyl group).
    Type: Application
    Filed: March 3, 2006
    Publication date: March 26, 2009
    Inventors: Kohsuke Satake, Kazuharu Niwa