Patents Assigned to Menicon Co., Ltd.
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Publication number: 20120169994Abstract: The present invention provides a hybrid soft contact lens including a central portion formed with a first hydrous soft material, and a peripheral portion formed with a second hydrous soft material, in which the first hydrous soft material is obtained by curing a first curable composition including a silicone-containing monomer. Preferably, the first hydrous soft material has a Young's modulus of no less than 3.0 MPa and no greater than 100 MPa, and the second hydrous soft material has a Young's modulus of no less than 0.20 MPa and less than 3.0 MPa.Type: ApplicationFiled: July 5, 2010Publication date: July 5, 2012Applicant: MENICON CO., LTD.Inventors: Ryo Matsushita, Koji Otani, Kazuharu Niwa, Kazuhiko Nakada
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Publication number: 20120164208Abstract: The present invention relates to water soluble quaternized chitosan derivatives which form hydrogel matrix with broad antimicrobial properties for the protection and coating of medical device. Hydrogel is attractive as an antimicrobial coating since its hydrophilicity intrinsically prevents the reversible nonspecific attachment of microbes. In order to achieve hydrogel formation, quaternized chitosan can be grafted with polymerizable groups, especially photocrosslinkable groups, such as methacrylates, PEG derivatives and be converted into hydrogels through a thermal or UV polymerization process. Hydrogels are hydrated cross-linked polymeric systems that contain water in an equilibrium state forming cushion water shield.Type: ApplicationFiled: July 13, 2009Publication date: June 28, 2012Applicants: NANYANG TECHNOLOGICAL UNIVERSITY, MENICON CO., LTD.Inventors: Chan Bee Eng Mary, Poon Yin Fun, Mouad Lamrani, Shinichi Hamaguchi
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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
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Patent number: 8192020Abstract: A contact lens including a circumferential positioning member that can selectively set up a first stable state where a superficial center of a second power zone is decentered on a symmetrical meridian from a geometrical center of an optical zone and an orthogonal meridian perpendicular to the symmetrical meridian with the lens worn on a right eye is circumferentially tilted by a first angle relative to a vertical line of the eye, and a second stable state where the orthogonal meridian under condition in which the lens is worn on a left eye with the right eye wearing state inverted upside down is circumferentially tilted by a second angle on the opposite side of the first angle relative to the vertical line, as well as a visible indicator mark for identifying a lens orientation.Type: GrantFiled: January 24, 2008Date of Patent: June 5, 2012Assignee: Menicon Co., Ltd.Inventors: Yuji Goto, Yukihisa Sakai, Hiroyuki Yamaguchi
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Patent number: 8173720Abstract: A transparent gel is disclosed which has an interpenetrating polymer network of a copolymer containing a polysiloxane structure and a polycarbonate structure and a hydrophilic polymer obtained by polymerizing a hydrophilic monomer. The transparent gel is useful as a cultivation substrate, a container for storage and an ophthalmic material, comprising an easily synthesizable and purifiable silicon-containing resin, wherein a gel strength, transparency, oxygen permeability, birefringence and other characteristics are excellent.Type: GrantFiled: January 13, 2006Date of Patent: May 8, 2012Assignees: Mitsubishi Gas Chemical Company, Inc., Menicon Co., Ltd.Inventors: Kazuhiko Nakada, Takahito Nakase, Takahiro Adachi, Akira Yamamoto, Masahiko Minemura
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Publication number: 20120085662Abstract: A case for sterilizing contact lenses wherein a contact lens sterilization process using a hydrogen peroxide solution can be carried out easily and rapidly while effectively preventing both damage to the lenses and deposition of a heavy metal from a metal catalyst on the lenses. The contact lenses are horizontally supported in the hydrogen peroxide solution on a bottom surface of a lens containing portion which opens upward, and a contact preventing member which prevents the contact lenses from coming into contact with the metal catalyst is provided between the metal catalyst and the lens containing portion.Type: ApplicationFiled: July 10, 2009Publication date: April 12, 2012Applicant: MENICON CO., LTD.Inventors: Osamu Mori, Megumi Toyohara
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Publication number: 20120076687Abstract: A disinfection system of a contact lens comprising immersing the contact lens in a disinfecting solution containing hydrogen peroxide in a concentration of 1 to 10% and neutralizing the hydrogen peroxide in the disinfecting solution through contact with a metal catalyst, where the disinfecting solution contains an organic carboxylic acid or a salt of the organic carboxylic acid, the organic carboxylic acid having a structure in which a hydroxyl group and a carboxyl group are bonded to one carbon atom; the disinfecting solution is adjusted to have a pH of 6 to 8; and the disinfecting solution after the neutralization is adjusted to have an osmotic pressure of 250 to 350 mOsm.Type: ApplicationFiled: December 6, 2011Publication date: March 29, 2012Applicant: Menicon Co., Ltd.Inventors: Osamu Mori, Yukihiro Kojima
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Publication number: 20120058066Abstract: Provide are a peptide gel with practically sufficient mechanical strength and a self-assembling peptide capable of forming the peptide gel. The self-assembling peptide is formed of the following amino acid sequence: a1b1c1b2a2b3db4a3b5c2b6a4 where: a1 to a4 each represent a basic amino acid residue; b1 to b6 each represent an uncharged polar amino acid residue and/or a hydrophobic amino acid residue, provided that at least five thereof each represent a hydrophobic amino acid residue; c1 and c2 each represent an acidic amino acid residue; and d represents a hydrophobic amino acid residue.Type: ApplicationFiled: February 12, 2010Publication date: March 8, 2012Applicants: NATIONAL UNIV. CORPORATION OKAYAMA UNIV., MENICON CO., LTD.Inventors: Yusuke Nagai, Hidenori Yokoi, Koji Uesugi, Keiji Naruse
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Patent number: 8124668Abstract: [Problem] To provide a safe ocular lens material having high oxygen permeability, excellent surface wettability, the excellent lubricity/easy lubricating property of surface, little in surface adhesive and superior flexibility and stress relaxation, in addition, suppressing elution of a monomer from the final product. [Means for Solving the Problem] An ocular lens comprising a compound (A) having an ethylenically unsaturated group and polydimethylsiloxane structure through a urethane bond and an 1-alkyl-3-methylene-2-pyrrolidone (B).Type: GrantFiled: January 8, 2004Date of Patent: February 28, 2012Assignee: Menicon Co., Ltd.Inventors: Masaki Baba, Tsuyoshi Watanabe
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Publication number: 20120006695Abstract: A contact lens distribution/storage method with which contact lenses can be reliably stored in a small space. To achieve this with a method for storing contact lenses for distribution using a contact lens package containing a packaging solution and the contact lens, a soft contact lens is used as the contact lens. A fluid volume of the packaging solution is 0.1 to 1.0 mL, and a buffering capability of the packaging solution is 3 mmol/L or greater measured in buffering capacity.Type: ApplicationFiled: March 12, 2009Publication date: January 12, 2012Applicant: MENICON CO., LTD.Inventors: Tetsuji Kawai, Yuji Ito
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Patent number: 8080017Abstract: An intraocular lens insertion tool with a tool body for accommodating an intraocular lens and adapted to insert into an eye the intraocular lens through displacement of the lens in an axial forward direction by a plunging member, and to push out the lens through an insertion tube section disposed at an axial distal end of the tool body. The insertion tube section has an inclined orifice that opens on diagonal to the center axis of the insertion tube section. The plunger member has a sliding part that during displacement thereof in a direction of plunging into the tool body will slide against the tool body. A resistance graduating mechanism is provided for gradually increasing operation resistance of the plunger member by gradually increasing contact force on the sliding part as the lens gradually emerges from the inclined orifice through plunging of the plunger member into the tool body.Type: GrantFiled: December 23, 2008Date of Patent: December 20, 2011Assignee: Menicon Co., Ltd.Inventor: Masayoshi Tanaka
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Patent number: 8051978Abstract: Disclosed is a container having a novel structure for storing contact lenses by which biofilm formation can be prevented at a high cost efficiency and from which lenses can be easily taken out. A container for storing contact lenses wherein the inner face of a dish-shaped storage chamber in a case is entirely made of a radius of curvature which is a smooth face with no irregularity and shows a continuous change, the inner face entirely comprises a smooth face with a surface roughness of 60 nm or less, and the solution capacity of the dish-shaped storage chamber is set to 3.8 mL or more.Type: GrantFiled: October 21, 2008Date of Patent: November 8, 2011Assignees: Menicon Co., Ltd., Menicon Nect Co., Ltd.Inventors: Osamu Mori, Miya Nomachi, Takeshi Miyawaki
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Publication number: 20110270390Abstract: A method of manufacturing an aphakic intraocular lens that is capable of ensuring every multi-focusing effect more securely, while reducing the impact of aperture changes and lens eccentricity. At least two reliefs whose first order diffracted lights give respective focal distances different from one another are set to overlap with each other in at least a part of an area in a radial direction of the lens, and with respect to every grating pitches of one relief having a maximum grating pitch among the reliefs set up in overlap, grating pitches of another relief are overlapped periodically in order to obtain a relief pattern, so that the resulting relief pattern is formed on a lens surface.Type: ApplicationFiled: April 8, 2009Publication date: November 3, 2011Applicant: MENICON CO., LTD.Inventors: Atsushi Kobayashi, Hiroaki Suzuki, Ichiro Ando
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Publication number: 20110267693Abstract: A novel manufacturing method for a diffraction lens, whereby aperture and eccentricity effects can be suppressed and any multi-focusing effect can also be obtained in a more stable manner. A synchronous structure is set up where at least two reliefs whose first order diffracted lights give respective focal distances different from one another are set to overlap with each other in at least a part of an area in a radial direction of a diffraction lens, and with respect to every grating pitches of one relief having the maximum grating pitch among the reliefs set up in overlap, grating pitches of another relief are overlapped periodically; and the resulting relief pattern is formed on a surface of an optical material.Type: ApplicationFiled: January 6, 2009Publication date: November 3, 2011Applicant: MENICON CO., LTD.Inventors: Atsushi Kobayashi, Hiroaki Suzuki, Ichiro Ando
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Patent number: 8038294Abstract: A novel method for manufacturing a contact lens in which wearing comfort and stability in the circumferential direction that are aimed at can be achieved consistently with a high degree of accuracy irrespective of a profile of an optical zone. An optical zone provided in a center of a lens has a concave rear surface optical zone substantially matching a surface profile of a cornea and has a convex front surface optical zone imparting required spherical diopter power and geometrical center thickness, and a face of either the rear surface optical zone or the front surface optical zone is designed to impart thereto cylindrical power and axial angle required for a toric surface. Furthermore, a junction thickness is established in a joint zone that connects the optical zone with a peripheral zone at multiple sites in a circumferential direction about a geometrical lens center axis of the optical zone.Type: GrantFiled: November 20, 2006Date of Patent: October 18, 2011Assignee: Menicon Co., Ltd.Inventor: Shingo Hibino
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Publication number: 20110224677Abstract: An intraocular lens insertion tool is presented. An introductory part in an insertion cylinder is provided, at a widthwise central portion of a bottom surface, with a central protrusion which extends in an axial direction of a tool body and protrudes toward an upper surface to get in contact with a center portion of a rear surface of an optical zone of an intraocular lens. The upper surface is provided, at its both widthwise ends, with a pair of lateral protrusions, which extend in the axial direction of the tool body and protrude toward the bottom surface to get in contact with both ends of a front surface of the optical zone of the intraocular lens. A lens pressing face of a plunging member is formed with a dimension spanning from the bottom surface to the upper surface at a tip end section of the insertion cylinder.Type: ApplicationFiled: December 1, 2008Publication date: September 15, 2011Applicant: MENICON CO., LTD.Inventors: Kazuharu Niwa, Masayoshi Tanaka, Yasuhiko Suzuki
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Publication number: 20110198243Abstract: Disclosed is a container having a novel structure for storing contact lenses by which biofilm formation can be prevented at a high cost efficiency and from which lenses can be easily taken out. A container for storing contact lenses wherein the inner face of a dish-shaped storage chamber in a case is entirely made of a radius of curvature which is a smooth face with no irregularity and shows a continuous change, the inner face entirely comprises a smooth face with a surface roughness of 60 nm or less, and the solution capacity of the dish-shaped storage chamber is set to 3.8 mL or more.Type: ApplicationFiled: October 21, 2008Publication date: August 18, 2011Applicants: MENICON CO., LTD., MENICON NECT CO., LTD.Inventors: Osamu Mori, Miya Nomachi, Takeshi Miyawaki
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Patent number: 7976156Abstract: A wearing-orientation selectable contact lens including: an optical zone; a first diopter power region provided in the optical zone; and a second diopter power region having a lens power that is more positive than that of the first diopter power region. A superficial center of the second diopter power region is decentered on a symmetrical meridian from a geometric center of the optical zone. A circumferential positioning member is provided so as to selectively set up: a first stable state where the superficial center of the second diopter power region is positioned to one of left and right side of the eye, and a second stable state where the superficial center of the second diopter power region is positioned to another of left and right side of the eye. A visible indicator mark is provided for identifying a lens orientation of the first stable state and the second stable state.Type: GrantFiled: June 28, 2010Date of Patent: July 12, 2011Assignee: Menicon Co., Ltd.Inventors: Yuji Goto, Yukihisa Sakai, Hiroyuki Yamaguchi
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Publication number: 20110098808Abstract: An intraocular lens adapted for deployment within a lens capsule. At least part of a lens surface of the intraocular lens constitutes a cell inducing region in which are directly formed a multitude of microgrooves. The microgrooves take a form of minute linear grooves and lands of depth dimension between 0.01 and 1.0 ?m and width dimension between 0.1 and 2.0 ?m extending with prescribed length in a circumferential direction on the lens surface. The minute linear grooves and lands are formed with a chained pattern connected in the circumferential direction of the lens surface and with a periodic pattern arrayed periodically in a diametrical direction so that the minute linear grooves and lands are formed without intervening spaces throughout the entire cell inducing region and impart visible light transmittance of 60% or above to the cell inducing region.Type: ApplicationFiled: July 15, 2008Publication date: April 28, 2011Applicant: MENICON CO., LTD.Inventors: Atsushi Kobayashi, Katsunori Yamada, Hiroaki Suzuki
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Patent number: D658077Type: GrantFiled: August 26, 2011Date of Patent: April 24, 2012Assignee: Menicon Co., Ltd.Inventor: Stephan D Newman
