Patents by Inventor Kenzo Wada
Kenzo Wada 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).
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Publication number: 20240287239Abstract: Provided is a two-pack type urethane molding material for optical lenses including a main agent containing an isocyanate-terminated prepolymer which is an intermediate product of a polyurethane production reaction by an alicyclic diisocyanate and a polyhydroxy compound; and a curing agent containing an aromatic diamine of dimethylthiotoluenediamine (DMTDA), diethyltoluenediamine (DETDA) or a mixture of these. Also, a polyurethane resin optical lens is provided which is constituted by a cast molded body using the two-pack type urethane molding material.Type: ApplicationFiled: March 14, 2022Publication date: August 29, 2024Applicant: TALEX CO., LTD.Inventors: Hiroo TAMURA, Kenzo WADA
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Patent number: 11966034Abstract: A body tissue observation lens includes a lens base having an integral polarizing filter. The body tissue observation lens has a 40% or higher average transmittance in a visible light wavelength range of 380 to 780 nm. The body tissue observation lens contains a specific wavelength light absorbing pigment such that the ratio of the minimum transmittance in a wavelength range of 580 to 600 nm to the average transmittance in the visible light wavelength range of 380 to 780 nm is 18 to 50%.Type: GrantFiled: June 13, 2019Date of Patent: April 23, 2024Assignee: TALEX CO., LTD.Inventors: Shinzo Tamura, Kenzo Wada
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Publication number: 20230168420Abstract: A functional polarizing element for insert molding is provided which is constituted by a polarizing film; a cured coating film formed on a concave surface of the polarizing film by applying and drying a coating material containing 100 parts by mass of a transparent adhesive and 4 to 20 parts by mass of a functional dye; and a cured coating film of a transparent adhesive, and coating a convex surface of the polarizing film. Also, a functional polarizing lens is provided which is obtained by insert molding using the functional polarizing element.Type: ApplicationFiled: April 5, 2021Publication date: June 1, 2023Inventors: Hiroo TAMURA, Kenzo WADA
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Patent number: 11543684Abstract: The present invention provides a non-corrective spectacle lens which is a molded plastic lens used by a person having normal eyesight, or a polarizing lens constituted by the molded plastic lens and a polarizing film integrally superposed on the molded plastic lens. In order to moderately reduce the movement of the muscle necessary for focus adjustment, the non-corrective spectacle lens has a spherical power S within the range of ?1.0 D?S<?0.1 D, where D is diopter as a unit of the spherical power S.Type: GrantFiled: November 24, 2016Date of Patent: January 3, 2023Assignee: TALEX CO., LTD.Inventors: Shinzo Tamura, Kenzo Wada
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Publication number: 20210247599Abstract: A body tissue observing lens includes a lens base having an integral polarizing filter, and having a 40% or higher average transmittance in a visible light wavelength range of 380 to 780 nm. The lens contains a specific wavelength light absorbing pigment such that the ratio of the minimum transmittance in a wavelength range of 580 to 600 nm to the above-mentioned average transmittance is 18 to 50%.Type: ApplicationFiled: June 13, 2019Publication date: August 12, 2021Inventors: Shinzo TAMURA, Kenzo WADA
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Patent number: 10823984Abstract: A polarizing element is superposed upon a lens base material. The polarizing element has an average light transmittance of light having a wavelength of 400 to 760 nm in a visible region is 30% or more. A light transmittance of light having a wavelength of 410 to 700 nm in a near infrared region is 0 to 2% when the polarizing element and an identical polarizing element are superposed one upon the other with their polarization axes perpendicular to each other. One of a film integral with the polarizing lens and the lens base material contains a near infrared ray absorption dye such that a light transmittance of light having a wavelength of 700 to 800 nm in a near infrared region is 0 to 2% when the polarizing lens and an identical polarizing lens are superposed one upon the other with their polarization axes perpendicular to each other.Type: GrantFiled: June 17, 2016Date of Patent: November 3, 2020Assignee: TALEX OPTICAL CO., LTD.Inventors: Hiroo Tamura, Shoichi Mitsuuchi, Kenzo Wada, Ryogo Nitta
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Patent number: 10444547Abstract: A functional laminated spectacle lens is provided which includes, as constituent layers, an outer lens, a polarizing film, and an inner lens. A functional layer is formed on at least one of the constituent layers. Another constituent layer is laminated on and joined to the functional layer through an adhesive layer. The functional layer is formed using a spin coating material which is obtained by incorporating a functional pigment into an acrylic urethane resin containing, as a main component, an acrylic polyol containing 4-hydroxybutyl acrylate, and, as a curable component, a polyisocyanate. Once the spin coating material cures, the required functional pigment is reliably maintained in the functional layer by a three-dimensional network structure, the migration of the functional pigment into an adjacent resin monomer-containing layer is prevented, and the functional pigment is made less susceptible to the effect of an organic peroxide contained in the resin.Type: GrantFiled: June 26, 2015Date of Patent: October 15, 2019Assignee: TALEX OPTICAL CO., LTD.Inventors: Hiroo Tamura, Shoichi Mitsuuchi, Kenzo Wada, Ryogo Nitta
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Publication number: 20190293966Abstract: The present invention provides a non-corrective spectacle lens which is a molded plastic lens used by a person having normal eyesight, or a polarizing lens constituted by the molded plastic lens and a polarizing film integrally superposed on the molded plastic lens. In order to moderately reduce the movement of the muscle necessary for focus adjustment, the non-corrective spectacle lens has a spherical power S within the range of ?1.0 D?S<?0.1 D, where D is diopter as a unit of the spherical power S.Type: ApplicationFiled: November 24, 2016Publication date: September 26, 2019Inventors: Shinzo TAMURA, Kenzo WADA
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Patent number: 10267966Abstract: A composite functional polarized lens is a polarized lens in which lens substrate layers made of, for example, an allyl diglycol carbonate resin (produced by PPG Industries: CR-39), an urethane resin or other predetermined resin are integrally formed on both front and back surfaces of a polarizing film by way of insert molding, wherein a first lens substrate layer formed on the front surface of both the front and back surfaces of the polarizing film contains a light absorber which is an ultraviolet absorber, an infrared absorber, photochromic light absorber or a thermochromic light absorber as an additional component, and a second lens substrate layer formed on the back surface does not contain the light absorber.Type: GrantFiled: April 13, 2016Date of Patent: April 23, 2019Assignee: TALEX OPTICAL CO., LTD.Inventors: Kanichi Tamura, Shoichi Mitsuuchi, Kenzo Wada, Ryogo Nitta
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Publication number: 20190004337Abstract: A polarizing lens for spectacles is provided including a polarizing element superposed upon a lens base material. The polarizing element has an average light transmittance of light having a wavelength of 400 to 760 nm in a visible region is 30% or more. A light transmittance of light having a wavelength of 410 to 700 nm in a near infrared region is 0 to 2% if two of the polarizing elements are superposed one upon the other with their polarization axes perpendicular to each other. A film integral with the lens base material or the polarizing lens contains a near infrared ray absorption dye such that a light transmittance of light having a wavelength of 700 to 800 rim in a near infrared region is 0 to 2% if two of the polarizing lenses are superposed one upon the other with their polarization axes perpendicular to each other.Type: ApplicationFiled: June 17, 2016Publication date: January 3, 2019Inventors: Hiroo TAMURA, Shoichi MITSUUCHI, Kenzo WADA, Ryogo NITTA
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Patent number: 10168554Abstract: A photochromic lens is proposed which can lose its color in a shorter period of time, and which is less likely to deteriorate when exposed to ultraviolet radiation. The photochromic lens is formed by dissolving 0.03 to 0.2 parts by mass of a spirooxazine photochromic compound in tetrahydrofuran, mixing the solution thus obtained into 100 parts by mass of a lens resin material so that the photochromic compound is uniformly dispersed in the resin material.Type: GrantFiled: November 2, 2012Date of Patent: January 1, 2019Assignee: TALEX OPTICAL CO., LTD.Inventors: Kanichi Tamura, Shoichi Mitsuuchi, Kenzo Wada, Atsushi Takata
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Publication number: 20170299782Abstract: A composite functional polarized lens is a polarized lens in which lens substrate layers made of, for example, an allyl diglycol carbonate resin (produced by PPG Industries: CR-39), an urethane resin or other predetermined resin are integrally formed on both front and back surfaces of a polarizing film by way of insert molding, wherein a first lens substrate layer formed on the front surface of both the front and back surfaces of the polarizing film contains a light absorber which is an ultraviolet absorber, an infrared absorber, photochromic light absorber or a thermochromic light absorber as an additional component, and a second lens substrate layer formed on the back surface does not contain the light absorber.Type: ApplicationFiled: April 13, 2016Publication date: October 19, 2017Inventors: Kanichi TAMURA, Shoichi MITSUUCHI, Kenzo WADA, Ryogo NITTA
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Publication number: 20170153464Abstract: A functional laminated spectacle lens is provided which includes, as constituent layers, an outer lens, a polarizing film, and an inner lens. A functional layer is formed on at least one of the constituent layers. Another constituent layer is laminated on and joined to the functional layer through an adhesive layer. The functional layer is formed using a spin coating material which is obtained by incorporating a functional pigment into an acrylic urethane resin containing, as a main component, an acrylic polyol containing 4-hydroxybutyl acrylate, and, as a curable component, a polyisocyanate. Once the spin coating material cures, the required functional pigment is reliably maintained in the functional layer by a three-dimensional network structure, the migration of the functional pigment into an adjacent resin monomer-containing layer is prevented, and the functional pigment is made less susceptible to the effect of an organic peroxide contained in the resin.Type: ApplicationFiled: June 26, 2015Publication date: June 1, 2017Applicant: TALEX OPTICAL CO., LTD.Inventors: Hiroo TAMURA, Shoichi MITSUUCHI, Kenzo WADA, Ryogo NITTA
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Publication number: 20150362948Abstract: Provided is a touch panel and a film body, which ensure that a region where the touch panel and a display section are in contact with each other is hard to be conspicuous and that an apparatus formed by the touch panel and a display device can be made thinner. The touch panel is a transparent touch panel which is disposed with air gaps provided at predetermined intervals between the transparent touch panel and a surface of a display section of a display device, wherein a back surface of the transparent touch panel facing the surface of the display section is provided with a projection formation layer on which a plurality of fine projections protruding toward the surface side of the display section are dispersively formed, the surface of the projection formation layer is configured to have an average irregularity height (Ra) of equal to or more than 0.01 ?m and equal to or less than 0.06 ?m and a maximum irregularity height (Ry) of equal to or more than 0.15 ?m and equal to or less than 0.Type: ApplicationFiled: June 16, 2014Publication date: December 17, 2015Applicant: GUNZE LIMITEDInventors: Kenzo WADA, Haruya KAKUTA
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Patent number: 9213362Abstract: Provided is a touch panel and a film body, which ensure that a region where the touch panel and a display section are in contact with each other is hard to be conspicuous and that an apparatus formed by the touch panel and a display device can be made thinner. The touch panel is a transparent touch panel which is disposed with air gaps provided at predetermined intervals between the transparent touch panel and a surface of a display section of a display device, wherein a back surface of the transparent touch panel facing the surface of the display section is provided with a projection formation layer on which a plurality of fine projections protruding toward the surface side of the display section are dispersively formed, the surface of the projection formation layer is configured to have an average irregularity height (Ra) of equal to or more than 0.01 ?m and equal to or less than 0.06 ?m and a maximum irregularity height (Ry) of equal to or more than 0.15 ?m and equal to or less than 0.Type: GrantFiled: June 16, 2014Date of Patent: December 15, 2015Assignee: GUNZE LIMITEDInventors: Kenzo Wada, Haruya Kakuta
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Patent number: 9207368Abstract: A light-shielding lens which can cut ultraviolet or visible radiation having wavelengths of 430 nm and shorter or of 500 nm and shorter and which can sufficiently satisfy users' demand for its color. The lens contains 0.01 to 2 parts by mass of an indole-based ultraviolet absorbing dye having a melting point of 140 to 150° C., based on 100 parts by mass of a synthetic resin forming the lens, and preferably further contains an oil-soluble dye, whereby the lens can cut ultraviolet and visible radiation having wavelengths of 430 nm and shorter. Since the predetermined amount of the indole-based ultraviolet absorbing dye is sufficiently dissolved in the synthetic resin, it efficiently reveals its expected function. The lens can thus cut ultraviolet and visible radiation having wavelengths of 430 nm and shorter, or even 500 nm and shorter, while keeping highly transparent light color.Type: GrantFiled: March 12, 2013Date of Patent: December 8, 2015Assignee: TALEX OPTICAL CO., LTD.Inventors: Kanichi Tamura, Shoichi Mitsuuchi, Kenzo Wada
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Patent number: 9175128Abstract: The invention is directed to a spectacle lens which contains an infrared absorbing agent, and which shows excellent infrared absorbing properties by minimizing deterioration and decomposition of the infrared absorbing agent, and as well as a method of producing such an optical lens. This infrared absorbing spectacle lens is formed by adding an infrared absorbing dye to a polyurethane resin obtained by addition polymerization of a prepolymer produced by reacting a polyisocyanate with a polyhydroxy compound, and an aromatic polyamine. The lens shows excellent infrared absorbing properties with no deterioration or decomposition of the infrared absorbing agent. It is possible to prevent deterioration of the infrared absorbing agent due to additives such as peroxides (including polymerization catalysts and initiators such as benzoyl peroxide), as well as increased absorption of visible light, which was difficult with conventional resin materials for molding.Type: GrantFiled: April 9, 2008Date of Patent: November 3, 2015Assignee: TALEX OPTICAL CO., LTD.Inventors: Kanichi Tamura, Shoichi Mitsuuchi, Kenzo Wada
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Patent number: 9017820Abstract: In a laminated glass lens for spectacles, first and second glass lens substrates (each about 1 mm thick) are bonded together with an adhesive agent layer therebetween. A liquid substance of a solventless adhesive to which a pigment containing a tetraazaporphyrin compound is added together with an organic solvent is dropped onto the first glass lens substrate in the form of a droplet, and the second glass lens substrate is pressed against the first glass lens substrate with a relatively light load to spread the droplet into a layer having a thickness of 5 to 150 micrometers, and allowing the thus spread layer to be cured as the adhesive layer.Type: GrantFiled: February 9, 2011Date of Patent: April 28, 2015Assignee: Talex Optical Co., Ltd.Inventors: Kanichi Tamura, Shoichi Mitsuuchi, Kenzo Wada
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Publication number: 20140036227Abstract: A photochromic lens is proposed which can lose its color in a shorter period of time, and which is less likely to deteriorate when exposed to ultraviolet radiation. The photochromic lens is formed by dissolving 0.03 to 0.2 parts by mass of a spirooxazine photochromic compound in tetrahydrofuran, mixing the solution thus obtained into 100 parts by mass of a lens resin material so that the photochromic compound is uniformly dispersed in the resin material.Type: ApplicationFiled: November 2, 2012Publication date: February 6, 2014Applicant: TALEX OPTICAL CO., LTD.Inventors: Kanichi TAMURA, Shoichi MITSUUCHI, Kenzo WADA, Atsushi TAKATA
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Publication number: 20130194658Abstract: A light-shielding lens which can cut ultraviolet or visible radiation having wavelengths of 430 nm and shorter or of 500 nm and shorter and which can sufficiently satisfy users' demand for its color. The lens contains 0.01 to 2 parts by mass of an indole-based ultraviolet absorbing dye having a melting point of 140 to 150° C., based on 100 parts by mass of a synthetic resin forming the lens, and preferably further contains an oil-soluble dye, whereby the lens can cut ultraviolet and visible radiation having wavelengths of 430 nm and shorter. Since the predetermined amount of the indole-based ultraviolet absorbing dye is sufficiently dissolved in the synthetic resin, it efficiently reveals its expected function. The lens can thus cut ultraviolet and visible radiation having wavelengths of 430 nm and shorter, or even 500 nm and shorter, while keeping highly transparent light color.Type: ApplicationFiled: March 12, 2013Publication date: August 1, 2013Applicant: Talex Optical Co., Ltd.Inventors: Kanichi TAMURA, Shoichi MITSUUCHI, Kenzo WADA