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: 20240026145Abstract: The present invention provides an ocular lens which achieves both of oxygen permeability and surface hydrophilicity, and on which the deposition of lipids is suppressed. The ocular lens of the present invention includes a polymer material obtained by polymerizing a polymerizable composition containing, as monomer components, a siloxane monomer having a siloxane bond, and a siloxane-free crosslinkable monomer free of any siloxane bond, wherein the siloxane-free crosslinkable monomer includes an alkylene glycol chain-containing crosslinkable monomer having: a chain moiety containing 6 or more alkylene glycol repeating units; and polymerizable groups arranged at both terminals of the chain moiety.Type: ApplicationFiled: August 25, 2020Publication date: January 25, 2024Applicant: MENICON CO., LTD.Inventors: Kohsuke SATAKE, Yuka NISHIGUCHI, Yurika SATAKE
-
Publication number: 20210163650Abstract: 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: ApplicationFiled: February 21, 2020Publication date: June 3, 2021Applicant: MENICON CO., LTD.Inventors: Kohsuke SATAKE, Kengo ASAI, Kazuhiro SUNAHARA, Yurika SATAKE
-
Patent number: 9657131Abstract: 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: GrantFiled: June 9, 2016Date of Patent: May 23, 2017Assignee: MENICON CO., LTD.Inventor: Kohsuke Satake
-
Patent number: 9650473Abstract: 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: GrantFiled: June 2, 2016Date of Patent: May 16, 2017Assignees: MENICON CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohsuke Satake, Shoji Ichinohe
-
Publication number: 20160289368Abstract: 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: ApplicationFiled: June 9, 2016Publication date: October 6, 2016Applicant: MENICON CO., LTD.Inventor: Kohsuke SATAKE
-
Publication number: 20160272766Abstract: 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: ApplicationFiled: June 2, 2016Publication date: September 22, 2016Applicants: MENICON CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.Inventors: Kohsuke SATAKE, Shoji ICHINOHE
-
Patent number: 9017716Abstract: 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: GrantFiled: July 6, 2010Date of Patent: April 28, 2015Assignee: Menicon Co., Ltd.Inventor: Kohsuke Satake
-
Patent number: 8523878Abstract: 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: GrantFiled: December 17, 2008Date of Patent: September 3, 2013Assignee: Kowa Company, Ltd.Inventors: Kohsuke Satake, Kazuharu Niwa, Ryo Matsushita, Yasuhiko Suzuki, Hiroko Nomura, Kazuhiko Nakada
-
Publication number: 20130202551Abstract: 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: ApplicationFiled: June 14, 2010Publication date: August 8, 2013Inventors: Kohsuke Satake, Susumu Ogawa
-
Publication number: 20120148519Abstract: 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: ApplicationFiled: July 6, 2010Publication date: June 14, 2012Applicant: MENICON CO., LTD.Inventor: Kohsuke Satake
-
Publication number: 20100312255Abstract: 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: ApplicationFiled: December 17, 2008Publication date: December 9, 2010Applicant: MENICON CO., LTD.Inventors: Kohsuke Satake, Kazuharu Niwa, Ryo Matsushita, Yasuhiko Suzuki, Hiroko Nomura, Kazuhiko Nakada
-
Patent number: 7662937Abstract: 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: GrantFiled: March 3, 2006Date of Patent: February 16, 2010Assignee: Menicon Co., Ltd.Inventors: Kohsuke Satake, Kazuharu Niwa
-
Publication number: 20090082553Abstract: 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: ApplicationFiled: March 3, 2006Publication date: March 26, 2009Inventors: Kohsuke Satake, Kazuharu Niwa