Patents by Inventor Osamu Kakinoki
Osamu Kakinoki 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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Patent number: 10649123Abstract: Provided are: an optical Elm that has a good appearance, small in-plane retardation Re, and large thickness-direction retardation Rth; and a method for producing such an optical film. Also provided is a multilayer optical film that uses the optical film, that exhibits little change in retardation as a result of wavelength, and that has small retardation at low wavelengths. The optical film is obtained by sandwiching a melted resin between a first cooling roll comprising an elastic metal roll and a second cooling roll comprising a non-elastic metal roll and molding said melted resin. The optical film has a good appearance, the absolute value of the in-plane retardation Re thereof is 10 nm or less, and the thickness-direction retardation Rth thereof is 40 nm or more.Type: GrantFiled: July 30, 2015Date of Patent: May 12, 2020Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu Kakinoki, Koji Komuro
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Patent number: 10414133Abstract: A synthetic resin laminate is excellent in shape stability in high-temperature high-humidity environments and in surface hardness and usable for a transparent substrate material or protection material. A synthetic resin laminate includes a substrate layer containing a polycarbonate (B); and a resin layer laminated on one or both surfaces of the substrate layer, the resin layer containing a resin (A) that contains a (meth)acrylate copolymer (a1) and a polycarbonate (a2); wherein (a1) is a (meth)acrylate copolymer composed of 5 to 80% by mass of an aromatic (meth)acrylate unit (a11) and 20 to 95% by mass of a methyl methacrylate unit (a12); (a2) is a polycarbonate containing a constituent unit represented by formula [1]; and the ratio of (a1) with respect to the resin (A) is 5 to 55% by mass, and the ratio of (a2) with respect to the resin (A) is 95 to 45% by mass.Type: GrantFiled: May 15, 2013Date of Patent: September 17, 2019Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Kosei Hino, Takeshi Onishi, Osamu Kakinoki, Hidetaka Shimizu, Hirohiko Aikawa, Toshinari Aoki
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Patent number: 10213951Abstract: A shaping roll for melt extrusion molding used for melt extrusion molding of thermoplastic resin, the shaping roll for melt extrusion molding comprises a metal roll body, a first cylinder, and a second cylinder. The metal roll body has a heat medium passage internally. The first cylinder covers a surface of a middle portion of the roll body part. The second cylinder covers surfaces of both end portions of the roll body part. The first cylinder comprises a first metal material having a thermal conductivity of 40 W/m·K or more. The second cylinder comprises a second metal material having a thermal conductivity of 20 W/m·K or less. The first cylinder and the second cylinder are at least partially joined to each other.Type: GrantFiled: April 10, 2014Date of Patent: February 26, 2019Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu Kakinoki, Masahide Takeda, Masataka Sugiyama
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Patent number: 10067271Abstract: An optical sheet is formed by laminating, by co-extrusion molding, a first layer containing a polycarbonate resin, a second layer containing a polyamide resin, and a third layer, wherein the second layer is laminated between the first layer and the third layer, the first layer and second layer, and the second layer and third layer can each be peeled at the interface, and the outer surface of the first layer has a fine grooved structure. The optical sheet, which is provided with a plurality of layers in such a way, is capable of retaining, a sufficient amount of heat in a laminate in a mold since the entire sheet can be made thick during melt extrusion molding, and is able to improve the transferability of the fine grooved structure. In addition, the optical sheet can be made thinner by using only the peeled first layer as an optical sheet.Type: GrantFiled: September 29, 2015Date of Patent: September 4, 2018Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu Kakinoki, Masahide Takeda, Shotaro Ohno, Takeshi Onishi, Masataka Sugiyama
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Patent number: 9857516Abstract: The problem is to provide a front plate of a TN liquid crystal display device capable of reducing occurrence of color unevenness caused by retardation of a polycarbonate resin sheet, even when the liquid crystal panel is observed through polarizing glasses or liquid crystal shutter glasses for 3D, while having excellent impact resistance, heat resistance and transparency. The solution means are that the direction of the slow axis or the fast axis of a polycarbonate resin sheet is parallel to the lengthwise direction of a TN liquid crystal panel, and that retardation is not less than 5000 nm.Type: GrantFiled: September 22, 2011Date of Patent: January 2, 2018Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Koshi Koide, Osamu Kakinoki
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Patent number: 9817262Abstract: The problem is to provide a front plate of a TN liquid crystal panel capable of inhibiting occurrence of color unevenness caused by retardation of a polycarbonate resin sheet, even when a liquid crystal panel is observed through polarizing glasses or liquid crystal shutter glasses for 3D, while having excellent impact resistance, heat resistance and transparency. The solution means is the front plate 1 of a TN liquid crystal panel provided with the polycarbonate resin sheet 10, wherein the direction of the slow axis X or the fast axis Y of the polycarbonate resin sheet 10 is inclined by 45° with respect to the lengthwise direction L of a liquid crystal panel.Type: GrantFiled: August 8, 2011Date of Patent: November 14, 2017Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Koshi Koide, Osamu Kakinoki
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Publication number: 20170285226Abstract: An optical sheet is formed by laminating, by co-extrusion molding, a first layer containing a polycarbonate resin, a second layer containing a polyamide resin, and a third layer, wherein the second layer is laminated between the first layer and the third layer, the first layer and second layer, and the second layer and third layer can each be peeled at the interface, and the outer surface of the first layer has a fine grooved structure. The optical sheet, which is provided with a plurality of layers in such a way, is capable of retaining, a sufficient amount of heat in a laminate in a mold since the entire sheet can be made thick during melt extrusion molding, and is able to improve the transferability of the fine grooved structure. In addition, the optical sheet can be made thinner by using only the peeled first layer as an optical sheet.Type: ApplicationFiled: September 29, 2015Publication date: October 5, 2017Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu KAKINOKI, Masahide TAKEDA, Shotaro OHNO, Takeshi ONISHI, Masataka SUGIYAMA
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Publication number: 20170168206Abstract: Provided are: an optical film that has a good appearance, small in-plane retardation Re, and large thickness-direction retardation Rth; and a method for producing such an optical film. Also provided is a multilayer optical film that uses the optical film, that exhibits little change in retardation as a result of wavelength, and that has small retardation at low wavelengths. The optical film is obtained by sandwiching a melted resin between a first cooling roll comprising an elastic metal roll and a second cooling roll comprising a non-elastic metal roll and molding said melted resin. The optical film has a good appearance, the absolute value of the in-plane retardation Re thereof is 10 nm or less, and the thickness-direction retardation Rth thereof is 40 nm or more.Type: ApplicationFiled: July 30, 2015Publication date: June 15, 2017Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu KAKINOKI, Koji KOMURO
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Publication number: 20170136748Abstract: It is an object of the present invention to provide a synthetic resin laminate for use in transparent substrate materials or transparent protective materials, having excellent shape stability and surface hardness. This has been achieved by laminating a resin composition formed by polymer-alloying i) 25% to 100% by mass of a specific styrene-unsaturated dicarboxylic acid copolymer consisting of 45% to 70% by mass of a styrene monomer unit, 10% to 30% by mass of an unsaturated dicarboxylic acid anhydride monomer unit, and 10% to 35% by mass of a vinyl monomer, and ii) 75% to 0% by mass of a resin comprising a vinyl monomer as a constitutional unit, on one surface of a base material layer comprising a polycarbonate as a main component. Thus, the present invention provides the above-described synthetic resin laminate, a transparent material comprising the synthetic resin laminate, and the like.Type: ApplicationFiled: October 31, 2014Publication date: May 18, 2017Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Takeshi ONISHI, Osamu KAKINOKI, Yasuyoshi NAKAYASU, Kishin OZAWA
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Publication number: 20170113395Abstract: A shaping roll for melt extrusion molding used for melt extrusion molding of thermoplastic resin, the shaping roll for melt extrusion molding comprises a metal roll body, a first cylinder, and a second cylinder. The metal roll body has a heat medium passage internally. The first cylinder covers a surface of a middle portion of the roll body part. The second cylinder covers surfaces of both end portions of the roll body part. The first cylinder comprises a first metal material having a thermal conductivity of 40 W/m·K or more. The second cylinder comprises a second metal material having a thermal conductivity of 20 W/m·K or less. The first cylinder and the second cylinder are at least partially joined to each other.Type: ApplicationFiled: April 10, 2014Publication date: April 27, 2017Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu KAKINOKI, Masahide TAKEDA, Masataka SUGIYAMA
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Patent number: 9446567Abstract: The present invention has an object of providing a synthetic resin laminate that is usable for a transparent substrate material or protective material, has high thermoformability (pressure formability, thermal-bending formability), high insert moldability, and high surface hardness and/or impact resistance, and also providing a molded body formed by molding such a synthetic resin laminate. The synthetic resin laminate includes a polycarbonate-based substrate layer; and a resin laminated on one of, or both of, two surfaces of the polycarbonate-based substrate layer, the resin containing a specific (meth)acrylate copolymer resin and a specific polycarbonate resin. The polycarbonate-based substrate layer includes a polymer alloy and thus has a glass transition temperature (Tg) of 110 to 130° C. Thus, the resultant synthetic resin laminate has high thermoformability and high surface hardness.Type: GrantFiled: September 20, 2013Date of Patent: September 20, 2016Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Takeshi Onishi, Osamu Kakinoki, Yasuyoshi Nakayasu, Hidetaka Shimizu, Hirohiko Aikawa
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Publication number: 20160054473Abstract: The optical sheet according to the present invention includes a first layer containing a polycarbonate resin and a second layer containing an amorphous polyamide resin, the first layer and the second layer being layered by coextrusion molding. The first layer and the second layer are peelable from each other; and a surface of at least one of the first layer and the second layer has a fine uneven shape formed thereat. Such an optical sheet including a plurality of layers can make the entirety sheet thick at the time of melt extrusion molding, and therefore the layered body during the molding can hold a sufficient amount of heat. This improves the transferability of the fine uneven structure. In addition, the layers may be peeled off so that one of the layers is used. In this case, the optical sheet can be made thinner.Type: ApplicationFiled: April 1, 2014Publication date: February 25, 2016Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Osamu KAKINOKI, Masahide TAKEDA, Masataka SUGIYAMA
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Publication number: 20150224748Abstract: The present invention has an object of providing a synthetic resin laminate that is usable for a transparent substrate material or protective material, has high thermoformability (pressure formability, thermal-bending formability), high insert moldability, and high surface hardness and/or impact resistance, and also providing a molded body formed by molding such a synthetic resin laminate. The synthetic resin laminate includes a polycarbonate-based substrate layer; and a resin laminated on one of, or both of, two surfaces of the polycarbonate-based substrate layer, the resin containing a specific (meth)acrylate copolymer resin and a specific polycarbonate resin. The polycarbonate-based substrate layer includes a polymer alloy and thus has a glass transition temperature (Tg) of 110 to 130° C. Thus, the resultant synthetic resin laminate has high thermoformability and high surface hardness.Type: ApplicationFiled: September 20, 2013Publication date: August 13, 2015Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Takeshi Onishi, Osamu Kakinoki, Yasuyoshi Nakayasu, Hidetaka Shimizu, Hirohiko Aikawa
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Publication number: 20150111015Abstract: A synthetic resin laminate is excellent in shape stability in high-temperature high-humidity environments and in surface hardness and usable for a transparent substrate material or protection material. A synthetic resin laminate includes a substrate layer containing a polycarbonate (B); and a resin layer laminated on one or both surfaces of the substrate layer, the resin layer containing a resin (A) that contains a (meth)acrylate copolymer (a1) and a polycarbonate (a2); wherein (a1) is a (meth)acrylate copolymer composed of 5 to 80% by mass of an aromatic (meth)acrylate unit (a11) and 20 to 95% by mass of a methyl methacrylate unit (a12); (a2) is a polycarbonate containing a constituent unit represented by formula [1]; and the ratio of (a1) with respect to the resin (A) is 5 to 55% by mass, and the ratio of (a2) with respect to the resin (A) is 95 to 45% by mass.Type: ApplicationFiled: May 15, 2013Publication date: April 23, 2015Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Kosei Hino, Takeshi Onishi, Osamu Kakinoki, Hidetaka Shimizu, Hirohiko Aikawa, Toshinari Aoki
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Publication number: 20130272020Abstract: The problem is to provide a front plate of a TN liquid crystal display device capable of reducing occurrence of color unevenness caused by retardation of a polycarbonate resin sheet, even when the liquid crystal panel is observed through polarizing glasses or liquid crystal shutter glasses for 3D, while having excellent impact resistance, heat resistance and transparency. The solution means are that the direction of the slow axis or the fast axis of a polycarbonate resin sheet is parallel to the lengthwise direction of a TN liquid crystal panel, and that retardation is not less than 5000 nm.Type: ApplicationFiled: September 22, 2011Publication date: October 17, 2013Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Koshi Koide, Osamu Kakinoki
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Publication number: 20130251919Abstract: The problem is to provide a front plate of a TN liquid crystal panel capable of inhibiting occurrence of color unevenness caused by retardation of a polycarbonate resin sheet, even when a liquid crystal panel is observed through polarizing glasses or liquid crystal shutter glasses for 3D, while having excellent impact resistance, heat resistance and transparency. The solution means is the front plate 1 of a TN liquid crystal panel provided with the polycarbonate resin sheet 10, wherein the direction of the slow axis X or the fast axis Y of the polycarbonate resin sheet 10 is inclined by 45° with respect to the lengthwise direction L of a liquid crystal panel.Type: ApplicationFiled: August 8, 2011Publication date: September 26, 2013Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Koshi Koide, Osamu Kakinoki
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Patent number: 6202883Abstract: A tray for semiconductor integrated circuit devices, including a plurality of first partition walls extending in a first direction, a plurality of second partition walls extending in a second direction at right angles with the first direction, and circumferential frame portions connecting end portions of the first and second partition walls. The regions surrounded by the first partition walls and the second partition walls constitute seating portions for seating semiconductor integrated circuit devices. The first partition walls are disposed such that one first partition wall is disposed between two rows of the seating portions which are adjacent to each other in the second direction. The second partition walls are disposed such that two second partition walls are disposed between two rows of the seating portions which are adjacent to each other in the first direction, and opening portions are formed between the two second partition walls.Type: GrantFiled: January 28, 1999Date of Patent: March 20, 2001Assignee: Mitsubishi Engineering-Plastics Corp.Inventors: Norio Narazaki, Yutaka Shiraishi, Osamu Kakinoki
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Patent number: 5942169Abstract: A method of over-molding used to produce a three-dimensional hollow molded article employs a core made of resin having a hollow portion. The core is placed in a cavity of a mold. Molten resin is injected into a space formed by the core and a cavity wall of the mold through a resin injection portion. In this way at least part of the outer surface of the core is covered with resin. Deformation of the core due to the pressure of the resin during injection is prevented in one of a number of different ways. The over-molding method is optimized by calculating a temperature distribution and a pressure distribution of the molten resin in the step of injecting the molten resin into the space by numerical analysis. The displacement distribution and for the stress distribution of the core caused by pressure applied to the core by flow of the molten resin is calculated by a numerical analysis on the basis of the calculated temperature distribution and pressure distribution.Type: GrantFiled: November 27, 1995Date of Patent: August 24, 1999Assignee: Mitsubishi Engineering-Plastics Corp,Inventors: Norio Narazaki, Yutaka Shiraishi, Osamu Kakinoki