Patents by Inventor Kensuke Izutani
Kensuke Izutani 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: 20220050289Abstract: A head-up display device that is to be mounted in a moving vehicle and enables an occupant in the moving vehicle to view a virtual image based on a reflected image of S-polarized light in a projection section, the head-up display device including: an image projector configured to apply projection light including S-polarized light; and the projection section on which the projection light is to be projected. The projection section includes laminated glass including a first glass plate defining a surface of the laminated glass on which the projection light is to be incident, a second glass plate defining a surface of the laminated glass from which the projection light is to be emitted, and a half-wave plate disposed between the first glass plate and the second glass plate. The first glass plate and the second glass plate each are formed from a glass composition containing silicon oxide, iron oxide, and an alkali metal oxide. At least one of the first glass plate or the second glass plate has a thickness of 0.Type: ApplicationFiled: January 23, 2020Publication date: February 17, 2022Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Naoya MORI, Kensuke IZUTANI, Hiroki NAKAMURA
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Publication number: 20210382302Abstract: A head-up display device that is to be mounted in a moving vehicle and enables an occupant in the moving vehicle to view a virtual image based on a reflected image of projection light in a projection section. The projection section includes an interlayer film, a first glass plate disposed closer to an outside of the moving vehicle, and a second glass plate disposed closer to an inside of the moving vehicle, the first glass plate and the second glass plate disposed opposite each other with the interlayer film therebetween. The first glass plate and the second glass plate each have a tin surface on which tin is detected and a non-tin surface whose tin concentration is lower than the tin concentration on the tin surface.Type: ApplicationFiled: October 10, 2019Publication date: December 9, 2021Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Kensuke IZUTANI, Naoya MORI
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Publication number: 20210323409Abstract: A head-up display device that is to be mounted in a moving vehicle and enables an occupant in the moving vehicle to view a virtual image based on a reflected image of projection light in a projection section, the projection section including an interlayer film, a first glass plate disposed closer to an outside of the moving vehicle, and a second glass plate disposed closer to an inside of the moving vehicle, the first glass plate and the second glass plate disposed opposite each other with the interlayer film therebetween, the first glass plate having a first main surface exposed to the outside and a second main surface opposite the first main surface, the second glass plate having a fourth main surface exposed to the inside and a third main surface opposite the fourth main surface, the first glass plate and the second glass plate each having a tin surface on which tin is detected and a non-tin surface whose tin concentration is lower than the tin concentration on the tin surface, the fourth main surface beinType: ApplicationFiled: October 10, 2019Publication date: October 21, 2021Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Kensuke IZUTANI, Naoya MORI, Hiroki NAKAMURA
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Publication number: 20210094261Abstract: Disclosed is a production method of a vehicular laminated glass plate, including: a step 1 of stacking an intermediate resin film between two curved glass sheets to form a stacked body; a step 2 of degassing the stacked body; and a step 3 of integrating the stacked body into one piece by heating and pressing treatment after the degassing, wherein a minimum value of a curvature radium of the curved glass sheets is in a range of 200 to 2900 mm; wherein a thickness of at least one of the curved glass sheets is in a range of 0.1 to 2.0 mm; and wherein the production method comprises, before the step 2, a step A of deforming the intermediate resin film by raising the temperature of the intermediate resin film so as to allow the intermediate resin film to follow a surface shape of the curved glass sheet.Type: ApplicationFiled: April 2, 2019Publication date: April 1, 2021Inventors: Kensuke IZUTANI, Naoya MORI
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Patent number: 10775548Abstract: A light guide plate according to one embodiment of the present invention includes two glass sheets and a scattering layer sandwiched between and integrated with the glass sheets, wherein the scattering layer is a transparent resin film formed by stretching, and wherein the light guide plate has a haze of 0.2% or higher as determined according to JIS K 7136. The light guide plate is suitable for use in an edge-light-type surface light emitting apparatus. It is preferable that the scattering layer is a biaxially stretched transparent polyethylene terephthalate film. It is also preferable that the light guide plate further includes an adhesive resin layer between the scattering layer and the glass sheet.Type: GrantFiled: November 20, 2017Date of Patent: September 15, 2020Assignee: Central Glass Company, LimitedInventors: Naoya Mori, Kensuke Izutani
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Publication number: 20200057189Abstract: A light guide plate according to one embodiment of the present invention includes two glass sheets and a scattering layer sandwiched between and integrated with the glass sheets, wherein the scattering layer is a transparent resin film formed by stretching, and wherein the light guide plate has a haze of 0.2% or higher as determined according to JIS K 7136. The light guide plate is suitable for use in an edge-light-type surface light emitting apparatus. It is preferable that the scattering layer is a biaxially stretched transparent polyethylene terephthalate film. It is also preferable that the light guide plate further includes an adhesive resin layer between the scattering layer and the glass sheet.Type: ApplicationFiled: November 20, 2017Publication date: February 20, 2020Applicant: Central Glass Company, LimitedInventors: Naoya MORI, Kensuke IZUTANI
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Patent number: 9869805Abstract: The present invention has the objective of providing an infrared reflective film by means of which it is possible to achieve an effective heat-shielding performance with a smaller number of layers than hitherto using a construction employing specified infrared reflective layers. Solution Means The infrared reflective film of the present invention has at least two infrared reflective layers and, of these infrared reflective layers, the center reflective wavelength of at least one infrared reflective layer is between 1200 and 1300 nm. Furthermore, the laminated glass of the present invention is formed by interposing this infrared reflective film between two sheets of intermediate film, and laminating these between two sheets of glass.Type: GrantFiled: May 23, 2014Date of Patent: January 16, 2018Assignees: Nippon Kayaku Co., Ltd., BASF SE, Central Glass Co., Ltd.Inventors: Kouichi Tanaka, Hideyoshi Fujisawa, Kensuke Izutani, Satoshi Nishiyama, Atsushi Takamatsu, Akira Matsumoto, Masayoshi Furukawa
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Publication number: 20160085002Abstract: The present invention has the objective of providing an infrared reflective film by means of which it is possible to achieve an effective heat-shielding performance with a smaller number of layers than hitherto using a construction employing specified infrared reflective layers. Solution Means The infrared reflective film of the present invention has at least two infrared reflective layers and, of these infrared reflective layers, the center reflective wavelength of at least one infrared reflective layer is between 1200 and 1300 nm. Furthermore, the laminated glass of the present invention is formed by interposing this infrared reflective film between two sheets of intermediate film, and laminating these between two sheets of glass.Type: ApplicationFiled: May 23, 2014Publication date: March 24, 2016Applicants: Nippon Kayaku Co., Ltd., BASF SE, Central Glass Co., Ltd.Inventors: Kouichi TANAKA, Hideyoshi FUJISAWA, Kensuke IZUTANI, Satoshi NISHIYAMA, Atsushi TAKAMATSU, Akira MATSUMOTO, Masayoshi FURUKAWA
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Patent number: 9012015Abstract: In a laminated glass, a plastic film is sandwiched between two sheets of resin intermediate film, and an infrared reflective film is formed in the plastic film by alternatively laminating resin films of different refractive indexes. The plastic film on which the infrared reflective film is formed meets any of the following conditions: (A) thermal shrinkage of 0.5 to 3% in the 90 through 150° C. temperature range, (B) modulus of elasticity in the range of 30 through 2000 MPa in a temperature range of 90 through 150° C., and (C) a rate of elongation of the plastic film of 0.3% or less when 10 N tensile force per 1 m width of the plastic film is exerted in the 90 through 150° C. temperature range. This laminated glass is a curved infrared ray reflective laminated glass, with high transmissivity to visible light, high reflectivity in the infrared ray region, excellent insulating effect, and will transmit various electromagnetic waves.Type: GrantFiled: February 4, 2010Date of Patent: April 21, 2015Assignee: Central Glass Company, LimitedInventors: Hiromichi Sakamoto, Atsushi Takamatsu, Kensuke Izutani, Isao Nakamura
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Publication number: 20150101736Abstract: A method of manufacturing a vehicle laminated glass according to the present invention includes: stacking a thermal insulating film between two resin intermediate films; stacking these films between two curved glass plates, thereby forming a stacked body; degassing the stacked body; and, after the degassing, thermocompression bonding the stacked body by pressing and heating up to a maximum temperature of 120 to 150° C., wherein: the thermal insulating film has a heat shrinkage of 0.9 to 5% in a temperature range of 120 to 150° C.; the resin intermediate film is larger in area than the glass plates; and the stacked body is formed such that an edge part of the resin intermediate film protrudes outwardly by 1 mm or more from edges of the glass plates. It is possible by this method to prevent an appearance defect in the thermal insulating film throughout the entire circumference of the laminated glass.Type: ApplicationFiled: October 9, 2014Publication date: April 16, 2015Inventors: Kensuke IZUTANI, Satoshi NISHIYAMA, Kentaro IBI, Naoya MORI
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Publication number: 20110300356Abstract: Disclosed is a heat insulating laminated glass that includes at least two glass plates and an intermediate film member by which the at least two glass plates are laminated together, wherein the intermediate film member has two intermediate films and a functional plastic film sheet arranged between the two intermediate films and formed with an infrared reflecting layer and an infrared absorbing layer. This glass attains a high visible light transmittance and good heat insulating properties against solar radiation.Type: ApplicationFiled: February 22, 2010Publication date: December 8, 2011Applicant: Central Glass Company, LimitedInventors: Atsushi Takamatsu, Hiromichi Sakamoto, Kensuke Izutani
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Publication number: 20110287229Abstract: In a laminated glass, a plastic film is sandwiched between two sheets of resin intermediate film, and an infrared reflective film is formed in the plastic film by alternatively laminating resin films of different refractive indexes. The plastic film on which the infrared reflective film is formed meets any of the following conditions: (A) thermal shrinkage of 0.5 to 3% in the 90 through 150° C. temperature range, (B) modulus of elasticity in the range of 30 through 2000 MPa in a temperature range of 90 through 150° C., and (C) a rate of elongation of the plastic film of 0.3% or less when 10N tensile force per 1 m width of the plastic film is exerted in the 90 through 150° C. temperature range. This laminated glass is a curved infrared ray reflective laminated glass, with high transmissivity to visible light, high reflectivity in the infrared ray region, excellent insulating effect, and will transmit various electromagnetic waves.Type: ApplicationFiled: February 4, 2010Publication date: November 24, 2011Inventors: Hiromichi Sakamoto, Atsushi Takamatsu, Kensuke Izutani, Isao Nakamura
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Publication number: 20110097572Abstract: According to the present invention, there is provided a production process of a plastic film-inserted laminated glass, the plastic film-inserted laminated glass having a laminated film in which a plastic film of 30 to 200 ?m in thickness is sandwiched between two resin intermediate films and two glass plates, the process including at least the following three steps: a step 1 for forming a laminate in which the glass plate, the resin intermediate film, the plastic film, the resin intermediate film and the glass plate are laminated together in order of mention; a step 2 for degassing the formed laminate; and a step 3 for bonding the degassed laminate by pressing and heating, wherein the steps 1 and 2 are performed under conditions that the temperature of working atmosphere and the temperatures of the plastic film and resin intermediate films fall within a range of 10 to 25° C.Type: ApplicationFiled: May 27, 2009Publication date: April 28, 2011Inventors: Masaaki Yonekura, Kensuke Izutani, Atsushi Takamatsu, Isao Nakamura, Hiromichi Sakamoto
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Publication number: 20100285280Abstract: According to the present invention, there is provided a plastic film-inserted laminated glass comprising an outdoor side glass plate, an interlayer, a plastic film, another interlayer and an indoor side glass plate which are laminated in this order, which is characterized in that the glass plates have a curved shape formed by bending, the plastic film includes an infrared reflecting film formed thereon and at least at one side of the laminated glass, an edge of the plastic film is placed apart from corresponding edges of the glass plates by a distance ranging from 5 mm to 200 m in a direction toward a central portion of the glass plates.Type: ApplicationFiled: December 16, 2008Publication date: November 11, 2010Applicant: Central Glass Company, LimitedInventors: Masaaki Yonekura, Isao Nakamura, Kensuke Izutani, Atsushi Takamatsu
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Publication number: 20100285310Abstract: A production method of producing a plastic film-inserted laminated glass comprising a first step for subjecting a plastic interlayer and a plastic film to a thermocompression bonding, a second step for placing another plastic interlayer on the plastic film that has been subjected to the thermocompression bonding at the first step, thereby to produce a laminated film, a third step for putting the laminated film produced at the second step between two curved glass plates thereby to produce a laminated body, a fourth step for applying the laminated body with pressure and heat by using an autoclave thereby to achieve bonding of entire construction of the laminated body and a fifth step for cutting and removing the laminated film that protrudes from edges of the curved glass plates.Type: ApplicationFiled: December 16, 2008Publication date: November 11, 2010Applicant: Central Glass Company ,LimitedInventors: Kensuke Izutani, Atsushi Takamatsu, Masaaki Yonekura, Isao Nakamura
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Publication number: 20100238556Abstract: [Problem] In case of producing a plastic film-inserted laminated glass by forming an infrared rays reflection functioning film on a transparent plastic film and then by interposing the plastic film between intermediate films, an adhesion between the plastic film and the intermediate film is not good thereby causing such a problem that a peeling occurs upon collision. [Solving Means] A silane coupling film is formed on a surface where no infrared rays reflection film is formed, of a plastic film, and a hard coat layer is formed between the plastic film and the infrared rays reflection film.Type: ApplicationFiled: October 2, 2008Publication date: September 23, 2010Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Atsushi Takamatsu, Kensuke Izutani, Masaaki Yonekura
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Publication number: 20100215952Abstract: There is provided a plastic film-inserted laminated glass prepared by laminating a glass plate, an interlayer film, a plastic film, an interlayer film, and a glass plate in this order. The plastic film-inserted laminated glass is characterized in that an infrared reflective film is formed by stacking dielectric films on the plastic film and that the plastic film having the infrared ray reflective film formed satisfies any one condition of the following (A), (B) and (C), (A) thermal contraction percentage of the infrared ray reflective film-formed plastic film is in a range of 0.5-3% in a temperature range of 90-150° C.; (B) elastic modulus of the plastic film is in a range of 30-2000 MPa in a temperature range of 90-150° C.; and (C) elongation percentage of the plastic film is 0.3% or less when a tension of 10N is added per 1 m width of the plastic film in a temperature range of 90-150° C.Type: ApplicationFiled: July 15, 2008Publication date: August 26, 2010Applicant: CentralGlass Company, LimitedInventors: Atsushi Takamatsu, Kensuke Izutani, Makoto Miyazaki, Masaaki Yonekura