Patents by Inventor Kyousuke Nakamura
Kyousuke Nakamura 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: 20240017459Abstract: An injection device comprises: a plunger provided inside a barrel and a nozzle; a seal provided rearward of an injection inlet for the nozzle to prevent a molding material from flowing rearward; and a seal case that holds the seal. The seal case is fixed by the barrel and the nozzle, and has a first inner radial surface that forms a first inner radial hollow section for the plunger to penetrate, and a second inner radial surface that forms a second inner radial hollow section into which the seal is fitted. At least a portion of the first inner radial surface has a female thread section formed thereon.Type: ApplicationFiled: October 29, 2021Publication date: January 18, 2024Applicant: FANUC CORPORATIONInventors: Kyousuke NAKAMURA, Akira OOMORI
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Publication number: 20230211533Abstract: To reliably and safely suppress co-rotation of a screw drive unit when performing a tightening and loosening operation for a threaded fastener which fixes a screw to the screw drive unit. Provided is an injection molding machine 2 in which a threaded fastener 30 is tightened into a first threaded portion 23a of a screw drive unit 21, thereby fixing a screw 10 to the screw drive unit 21 through a fixation bush 25, wherein a jig 40, which is detachably mounted on the screw drive unit 21, and is brought into contact with a main body contact portion 4 of a main body portion 3 of the injection molding machine 2 by rotating the screw drive unit 21 to restrict further rotation of the screw drive unit 21, is mounted on the screw drive unit 21, and the threaded fastener 30 is tightened or loosened with respect to the first threaded portion 23a with the jig 40 in contact with the main body contact portion 4.Type: ApplicationFiled: June 25, 2021Publication date: July 6, 2023Applicant: FANUC CORPORATIONInventor: Kyousuke NAKAMURA
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Publication number: 20230161090Abstract: An object of the present invention is to provide an eyewear such as polarized sunglasses using an optical film including a light reflective layer and a polarizing element layer, the eyewear having a metallic color tone conforming to signal visibility standards of various countries, and an optical film and an optical laminate for the eyewear. The present invention provides an optical film obtained by laminating a light reflective layer and a polarizing element layer, in which the optical film satisfies one or more of conditions (a) to (d).Type: ApplicationFiled: April 2, 2021Publication date: May 25, 2023Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Yoshiyuki YAHAGI, Saki HOSHINO, Yuki AIKAWA, Katsuyuki MURAI, Kyousuke NAKAMURA, Aya SAKAJIRI, Masashi KANEDA
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Patent number: 10838238Abstract: Provided is a polarizing lens which is excellent in terms of impact resistance, outer appearance and prevention of eye strain and which exhibits little variation in color tone and transmittance during formation. The polarizing lens is formed by stretching a polyvinyl alcohol film and dyeing it with a dichroic dye, bonding an aromatic polycarbonate sheet to both surfaces of the film by means of an adhesive layer, and then inserting a polarizing sheet, bent to have a spherical or aspherical surface, into a mold, and injecting aromatic polycarbonate thereto, wherein the area in which the dichroic dye seeps from the surface of the polyvinyl alcohol film is not more than a quarter of the thickness of the polyvinyl alcohol film.Type: GrantFiled: January 22, 2019Date of Patent: November 17, 2020Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Terutaka Tokumaru, Hideaki Kimura, Masayuki Akaki, Kyousuke Nakamura
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Patent number: 10816699Abstract: The present invention provides a functional sheet including a functional layer provided between protective layers. The functional layer is a polarizing film layer, a photochromic layer, or a combination of the polarizing film layer and the photochromic layer. At least one of the protective layers includes a layer formed of a resin (C) containing a polyester resin (A) obtained as a result of polycondensation of 1,4-cyclohexanedimethanol and 1,4-cyclohexanedicarboxylic acid and an aromatic polycarbonate resin (B), the polyester resin (A) being contained at a content of 10 to 100 parts by mass and the aromatic polycarbonate resin (B) being contained at a content of 0 to 90 parts by mass with respect to 100 parts by mass as a total of the polyester resin (A) and the aromatic polycarbonate resin (B). A lens is provided with such a functional sheet.Type: GrantFiled: December 1, 2015Date of Patent: October 27, 2020Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Kyousuke Nakamura, Takuya Gotou, Hirotaka Tsuruya, Kazuhisa Mitsuhata
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Patent number: 10737471Abstract: According to the present invention, a synthetic resin laminate comprising two transparent synthetic resin layers (A), two or more functional layers (B) having photochromic properties interposed between the two synthetic resin layers (A), and a transparent resin layer (C) interposed between the two or more functional layers (B), wherein the functional layer (B) is a cured layer comprising a photochromic dye and obtained from a diisocyanate and a polyol can be provided.Type: GrantFiled: March 7, 2017Date of Patent: August 11, 2020Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Katsuyuki Murai, Kyousuke Nakamura, Hideaki Kimura
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Publication number: 20190155059Abstract: Provided is a polarizing lens which is excellent in terms of impact resistance, outer appearance and prevention of eye strain and which exhibits little variation in color tone and transmittance during formation. The polarizing lens is formed by stretching a polyvinyl alcohol film and dyeing it with a dichroic dye, bonding an aromatic polycarbonate sheet to both surfaces of the film by means of an adhesive layer, and then inserting a polarizing sheet, bent to have a spherical or aspherical surface, into a mold, and injecting aromatic polycarbonate thereto, wherein the area in which the dichroic dye seeps from the surface of the polyvinyl alcohol film is not more than a quarter of the thickness of the polyvinyl alcohol film.Type: ApplicationFiled: January 22, 2019Publication date: May 23, 2019Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Terutaka TOKUMARU, Hideaki KIMURA, Masayuki AKAKI, Kyousuke NAKAMURA
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Publication number: 20190084278Abstract: According to the present invention, a synthetic resin laminate comprising two transparent synthetic resin layers (A), two or more functional layers (B) having photochromic properties interposed between the two synthetic resin layers (A), and a transparent resin layer (C) interposed between the two or more functional layers (B), wherein the functional layer (B) is a cured layer comprising a photochromic dye and obtained from a diisocyanate and a polyol can be provided.Type: ApplicationFiled: March 7, 2017Publication date: March 21, 2019Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Katsuyuki MURAI, Kyousuke NAKAMURA, Hideaki KIMURA
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Publication number: 20190008187Abstract: An object of the present invention is to provide a dispersion stabilizer that has an effect of improving or stabilizing the dispersibility of solids insoluble in aqueous media and/or liquid components immiscible therewith. The above object can be achieved by a dispersion stabilizer comprising welan gum.Type: ApplicationFiled: August 20, 2016Publication date: January 10, 2019Inventors: Takashi KONDA, Yasuharu SATO, Satoshi TOYOIZUMI, Makoto ONODERA, Hiroki YAMASAKI, Yuri SHIMA, Hiroyasu MIHARA, Eiji OKUDA, Minami TAKESONO, Kyousuke NAKAMURA, Yusuke FUJITA, Kazumi IWAI, Yudai SATO
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Patent number: 10120206Abstract: [Problem] The present invention provides eyewear, such as polarized sunglasses, having cholesteric liquid crystal layers, wherein the eyewear has a metallic tone and antiglare properties, minimizes the reduction in light-polarizing element absorptive capability that is associated with circular polarization, and is moreover unaffected by external degrading factors such as sebum, moisture, and salt air. [Solution] This optical film is characterized by being provided with a light-reflecting layer R comprising a cholesteric liquid crystal layer that has right-handed helical orientation, a light-reflecting layer L comprising a cholesteric liquid crystal layer that has left-handed helical orientation, and a polarizing element layer.Type: GrantFiled: June 23, 2015Date of Patent: November 6, 2018Assignees: NIPPON KAYAKU KABUSHIKI KAISHA, MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Kouichi Tanaka, Yoshiyuki Yahagi, Hideyoshi Fujisawa, Takuya Gotou, Katsuyuki Murai, Kazuhisa Mitsuhata, Kyousuke Nakamura
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Patent number: 9977264Abstract: Provided is a polarizing lens that is excellent in terms of impact resistance, prevention of eye strain, and a small variation of color tone or transparency or both. A sunglass polarizing lens that is formed by laminating a transparent protective sheet via an adhesive layer to each surface of a polarizing film that is made from polyvinyl alcohol and that is stretched and stained with dichroic organic dye; curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet; and injecting a transparent resin for a lens onto a surface of the polarizing sheet, wherein the polarizing film is stained by combined dichroic organic dyes so that the dichroic ratio of the film is within the range of from 5 to 14.Type: GrantFiled: August 19, 2013Date of Patent: May 22, 2018Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Hideaki Kimura, Terutaka Tokumaru, Masayuki Akaki, Kyousuke Nakamura
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Publication number: 20170329054Abstract: The present invention provides a functional sheet including a functional layer provided between protective layers. The functional layer is a polarizing film layer, a photochromic layer, or a combination of the polarizing film layer and the photochromic layer. At least one of the protective layers includes a layer formed of a resin (C) containing a polyester resin (A) obtained as a result of polycondensation of 1,4-cyclohexanedimethanol and 1,4-cyclohexanedicarboxylic acid and an aromatic polycarbonate resin (B), the polyester resin (A) being contained at a content of 10 to 100 parts by mass and the aromatic polycarbonate resin (B) being contained at a content of 0 to 90 parts by mass with respect to 100 parts by mass as a total of the polyester resin (A) and the aromatic polycarbonate resin (B). A lens is provided with such a functional sheet.Type: ApplicationFiled: December 1, 2015Publication date: November 16, 2017Applicants: Mitsubishi Gas Chemical Company, Inc., MGC Filsheet Co., Ltd.Inventors: Kyousuke NAKAMURA, Takuya GOTOU, Hirotaka TSURUYA, Kazuhisa MITSUHATA
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Patent number: 9709702Abstract: Eyewear uses a polarizing lens obtained by bending a multilayer polarizing sheet in which a sheet (A) including at least 50% by mass of an aromatic polycarbonate resin and having a retardation value of 2000 nm or less at a wavelength of 600 nm is layered on one side of a polarizing film, and a sheet (B) including a special polycarbonate resin obtained by carbonate bonding a dihydroxy compound through use of a carbonic acid diester, the polycarbonate resin being a compound in which 70-100 mol % of the dihydroxy compound is represented by general formula (1), is layered on the other side of the polarizing film. (In general formula (1), R1 and R2 are each independently a hydrogen atom, a C1-C20 alkyl group, or the like. In general formula (1), X are each independently a C2-C8 alkylene group or the like.Type: GrantFiled: August 12, 2013Date of Patent: July 18, 2017Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Takuya Gotou, Kazuhisa Mitsuhata, Kyousuke Nakamura, Masatoshi Nakashima
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Publication number: 20170160566Abstract: [Problem] The present invention provides eyewear, such as polarized sunglasses, having cholesteric liquid crystal layers, wherein the eyewear has a metallic tone and antiglare properties, minimizes the reduction in light-polarizing element absorptive capability that is associated with circular polarization, and is moreover unaffected by external degrading factors such as sebum, moisture, and salt air. [Solution] This optical film is characterized by being provided with a light-reflecting layer R comprising a cholesteric liquid crystal layer that has right-handed helical orientation, a light-reflecting layer L comprising a cholesteric liquid crystal layer that has left-handed helical orientation, and a polarizing element layer.Type: ApplicationFiled: June 23, 2015Publication date: June 8, 2017Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Kouichi TANAKA, Yoshiyuki YAHAGI, Hideyoshi FUJISAWA, Takuya GOTOU, Katsuyuki MURAI, Kazuhisa MITSUHATA, Kyousuke NAKAMURA
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Publication number: 20150248023Abstract: Provided is a polarizing lens that is excellent in terms of impact resistance, prevention of eye strain, and a small variation of color tone or transparency or both. A sunglass polarizing lens that is formed by laminating a transparent protective sheet via an adhesive layer to each surface of a polarizing film that is made from polyvinyl alcohol and that is stretched and stained with dichroic organic dye; curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet; and injecting a transparent resin for a lens onto a surface of the polarizing sheet, wherein the polarizing film is stained by combined dichroic organic dyes so that the dichroic ratio of the film is within the range of from 5 to 14.Type: ApplicationFiled: August 19, 2013Publication date: September 3, 2015Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Hideaki Kimura, Terutaka Tokumaru, Masayuki Akaki, Kyousuke Nakamura
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Publication number: 20150205011Abstract: Eyewear uses a polarizing lens obtained by bending a multilayer polarizing sheet in which a sheet (A) including at least 50% by mass of an aromatic polycarbonate resin and having a retardation value of 2000 nm or less at a wavelength of 600 nm is layered on one side of a polarizing film, and a sheet (B) including a special polycarbonate resin obtained by carbonate bonding a dihydroxy compound through use of a carbonic acid diester, the polycarbonate resin being a compound in which 70-100 mol % of the dihydroxy compound is represented by general formula (1), is layered on the other side of the polarizing film. (In general formula (1), R1 and R2 are each independently a hydrogen atom, a C1-C20 alkyl group, or the like. In general formula (1), X are each independently a C2-C8 alkylene group or the like.Type: ApplicationFiled: August 12, 2013Publication date: July 23, 2015Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Takuya Gotou, Kazuhisa Mitsuhata, Kyousuke Nakamura, Masatoshi Nakashima
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Patent number: 9063276Abstract: Provided is a polarizing lens which is excellent especially in terms of impact resistance, appearance, and prevention of eye strain and which has high precision of the surface shape. The polarizing lens is formed by laminating a sheet of an aromatic polycarbonate through an adhesive layer to each surface of a film having polarizing properties, curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet, inserting the polarizing sheet into a mold, and injecting an aromatic polycarbonate, wherein the polarizing sheet is obtained through the laminating so that the stretch axis of one of the aromatic-polycarbonate sheets is perpendicular to the absorption axis of the film having the polarizing properties.Type: GrantFiled: June 9, 2011Date of Patent: June 23, 2015Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Terutaka Tokumaru, Ken Shimomai, Katunori Suzuki, Kyousuke Nakamura, Masaki Yagoura, Akio Ohkubo
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Patent number: 8936363Abstract: The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.Type: GrantFiled: February 11, 2014Date of Patent: January 20, 2015Assignees: Mitsubishi Gas Chemical Company, Inc., MGC Filsheet Co., Ltd.Inventors: Terutaka Tokumaru, Katsunori Suzuki, Ken Shimomai, Masaki Yagoura, Kyousuke Nakamura, Akio Ohkubo
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Publication number: 20140375945Abstract: Provided is a polarizing lens which is excellent in terms of impact resistance, outer appearance and prevention of eye strain and which exhibits little variation in color tone and transmittance during formation. The polarizing lens is formed by stretching a polyvinyl alcohol film and dyeing it with a dichroic dye, bonding an aromatic polycarbonate sheet to both surfaces of the film by means of an adhesive layer, and then inserting a polarizing sheet, bent to have a spherical or aspherical surface, into a mold, and injecting aromatic polycarbonate thereto, wherein the area in which the dichroic dye seeps from the surface of the polyvinyl alcohol film is not more than a quarter of the thickness of the polyvinyl alcohol film.Type: ApplicationFiled: October 1, 2012Publication date: December 25, 2014Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Terutaka Tokumaru, Hideaki Kimura, Masayuki Akaki, Kyousuke Nakamura
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Publication number: 20140151911Abstract: The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.Type: ApplicationFiled: February 11, 2014Publication date: June 5, 2014Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Terutaka TOKUMARU, Katsunori Suzuki, Ken Shimomai, Masaki Yagoura, Kyousuke Nakamura, Akio Ohkubo