Patents by Inventor Yoshiaki Higuchi
Yoshiaki Higuchi 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: 20240074184Abstract: An electronic device comprises memory pillars comprising a channel material. The memory pillars extend through both a cell region and a lateral contact region. A portion of the memory pillars in the lateral contact region comprise at least one first step and at least one second step. The electronic device comprises a source contact in direct contact with the channel material in the at least one second step of the portion of the memory pillars in the lateral contact region. Additional electronic devices and methods of forming an electronic device are also disclosed.Type: ApplicationFiled: August 29, 2022Publication date: February 29, 2024Inventors: Masaaki Higuchi, Yoshiaki Fukuzumi, Hirokazu Ishigaki
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Publication number: 20230065010Abstract: A film includes a copolymer having a tetrafluoroethylene-based unit and an ethylene-based unit, in which the film has a haze of from 1.2% to 8.0%, an ultraviolet reflectance of less than 17.0%, and a thickness of from 250 to 400 ?m.Type: ApplicationFiled: October 19, 2022Publication date: March 2, 2023Applicant: AGC INC.Inventors: Hiroshi ARUGA, Yoshiaki HIGUCHI, Yuya HORIGUCHI, Junetsu NAKAMURA
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Patent number: 11565510Abstract: To provide a laminate which has a heat sealing property, a barrier property and mechanical strength, of which elution of impurities from the surface to be in contact with a chemical solution is suppressed, and of which peeling and the like hardly occur at the sealed portion of a bag and at the interfaces between the layers of the laminate when exposed to high temperature, a bag using it and a lithium ion battery. A laminate 10 comprising a first layer 12 containing a fluororesin, a second layer 14 containing a barrier material, a third layer 16 containing a fluororesin and a fourth layer 18 containing a polyamide in this order, wherein each of the fluororesin in the first layer 12 and the fluororesin in the third layer 16 is a fluororesin having a melting point of from 160 to 230° C. and having adhesive functional groups.Type: GrantFiled: September 18, 2017Date of Patent: January 31, 2023Assignee: AGC Inc.Inventors: Yoshiaki Higuchi, Seigo Kotera
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Patent number: 11524439Abstract: To provide a process for producing a film excellent in water vapor barrier property, tensile elongations, and transparency. A resin material containing polychlorotrifluoroethylene (PCTFE) is melted and extruded into a film from an extrusion die, the extruded product is brought into contact with a cooling roll having a surface temperature of at most 120° C. in a state such that the surface temperature of the extruded product is higher than the crystallization temperature of PCTFE to form a film web, and the film web is subjected to heat treatment at from 80 to 200° C. to obtain a film.Type: GrantFiled: October 15, 2020Date of Patent: December 13, 2022Assignee: AGC Inc.Inventors: Yoshiaki Higuchi, Shintaro Fukunaga, Takatoshi Yaoita
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Publication number: 20210023756Abstract: To provide a film made of polychlorotrifluoroethylene (PCTFE), of which a laminate with other layer is less likely to curl when subjected to drawing. A film comprising PCTFE, having thermal shrinkage rates within ±1.2% in MD and in TD when heated at 140° C. for 30 minutes and then cooled to 25° C., based on the dimension at 25° C.Type: ApplicationFiled: October 15, 2020Publication date: January 28, 2021Applicant: AGC Inc.Inventors: Yoshiaki Higuchi, Shintaro Fukunaga, Takatoshi Yaoita
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Publication number: 20210023757Abstract: To provide a process for producing a film excellent in water vapor barrier property, tensile elongations and transparency. A resin material containing polychlorotrifluoroethylene (PCTFE) is melted and extruded into a film from an extrusion die, the extruded product is brought into contact with a cooling roll having a surface temperature of at most 120° C. in a state such that the surface temperature of the extruded product is higher than the crystallization temperature of PCTFE to form a film web, and the film web is subjected to heat treatment at from 80 to 200° C. to obtain a film.Type: ApplicationFiled: October 15, 2020Publication date: January 28, 2021Applicant: AGC Inc.Inventors: Yoshiaki HIGUCHI, Shintaro FUKUNAGA, Takatoshi YAOITA
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Patent number: 10807776Abstract: To provide a resin film which comprises an ethylene/tetrafluoroethylene copolymer and which is to be used as, for example, a rubber plug lamination film to prevent breakage at the time of producing a laminated rubber plug. The resin film comprises an ethylene/tetrafluoroethylene copolymer and is characterized in that the product of the value of the endothermic peak height ?H (mW/mg) obtained by its DSC-analysis and the haze (%) measured at a thickness of 100 ?m, is from 0.1 to 0.2 (mW/mg·%).Type: GrantFiled: March 1, 2018Date of Patent: October 20, 2020Assignee: AGC Inc.Inventors: Daisuke Taguchi, Wataru Kasai, Yoshiaki Higuchi
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Patent number: 10730219Abstract: To provide a method for producing a fluororesin film, whereby defects due to deterioration (such as fish-eyes due to gelation) of a melt-processable fluororesin are less likely to occur during the production. A method for producing a fluororesin film, which comprises extruding a fluororesin material containing a melt-processable fluororesin through an extruder die, wherein the temperature of the extruder die is from 305 to 355° C., and the average flow velocity v0.95 of the fluororesin material as obtained by v0.95=Q0.95/A0.95, is at least 1×10?4 m/sec. Here, when the distance from the flow inlet 22 of the extruder die to the end of the manifold 24 of the extruder die is set to be x=1, Q0.95 is the flow rate (m3/sec) of the fluororesin material flowing in the manifold 24 at a position of x=0.95 from the flow inlet 22, and A0.95 is the cross-sectional area (m2) of the manifold 24 at a position of x=0.95 from the flow inlet 22.Type: GrantFiled: October 18, 2017Date of Patent: August 4, 2020Assignee: AGC Inc.Inventors: Yoshiaki Higuchi, Seigo Kotera
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Patent number: 10252455Abstract: An ethylene/tetrafluoroethylene copolymer sheet obtained by extrusion, has R0/d, wherein R0 is an in-plane phase difference [unit: nm]and d is a thickness, [unit: nm], of at most 3.0×10?3, and a thickness of more than 300 ?m. The ethylene/tetrafluoroethylene copolymer sheet preferably has a thickness of from 305 to 3,000 ?m . A process for producing an ethylene/tetrafluoroethylene copolymer sheet includes melting an ethylene/tetrafluoroethylene copolymer to obtain a melt, continuously extruding the melt through a die for shaping the melt to a sheet, and letting the sheet pass between two rolls. One of the two rolls is a rigid roll, and the other is an elastic roll. The two rolls are pressed under a linear pressure of from 0.1 to 1,000 N/cm.Type: GrantFiled: January 30, 2017Date of Patent: April 9, 2019Assignee: AGC Inc.Inventors: Hiroshi Aruga, Tetsuya Hasegawa, Sho Masuda, Yoshiaki Higuchi
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Publication number: 20180186914Abstract: To provide a resin film which comprises an ethylene/tetrafluoroethylene copolymer and which is to be used as, for example, a rubber plug lamination film to prevent breakage at the time of producing a laminated rubber plug. The resin film comprises an ethylene/tetrafluoroethylene copolymer and is characterized in that the product of the value of the endothermic peak height ?H (mW/mg) obtained by its DSC-analysis and the haze (%) measured at a thickness of 100 ?m, is from 0.1 to 0.2 (mW/mg·%).Type: ApplicationFiled: March 1, 2018Publication date: July 5, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Daisuke TAGUCHI, Wataru Kasai, Yoshiaki Higuchi
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Patent number: 9977322Abstract: To provide a film or sheet and a screen excellent in visibility of a projected image, in see-through properties when an image is not projected and in bending resistance. A single-layer film or sheet comprising a fluororesin, a light-scattering agent and a light absorbing agent, characterized in that the light-scattering agent is at least one light-scattering agent selected from the group consisting of a titanium oxide-containing pigment, a zinc oxide-containing pigment and a cerium oxide-containing pigment, and the content thereof is from 0.01 to 0.175 g/m2, and the light absorbing agent is at least one light absorbing agent selected from the group consisting of carbon black, a black interference aluminum pigment, black iron oxide and titanium black, and the content thereof is from 0.0005 to 0.035 g/m2.Type: GrantFiled: September 19, 2017Date of Patent: May 22, 2018Assignee: Asahi Glass Company, LimitedInventors: Yoshiaki Higuchi, Seigo Kotera
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Publication number: 20180036931Abstract: To provide a method for producing a fluororesin film, whereby defects due to deterioration (such as fish-eyes due to gelation) of a melt-processable fluororesin are less likely to occur during the production. A method for producing a fluororesin film, which comprises extruding a fluororesin material containing a melt-processable fluororesin through an extruder die, wherein the temperature of the extruder die is from 305 to 355° C., and the average flow velocity v0.95 of the fluororesin material as obtained by v0.95=Q0.95/A0.95, is at least 1×10?4 m/sec. Here, when the distance from the flow inlet 22 of the extruder die to the end of the manifold 24 of the extruder die is set to be x=1, Q0.95 is the flow rate (m3/sec) of the fluororesin material flowing in the manifold 24 at a position of x=0.95 from the flow inlet 22, and A0.95 is the cross-sectional area (m2) of the manifold 24 at a position of x=0.95 from the flow inlet 22.Type: ApplicationFiled: October 18, 2017Publication date: February 8, 2018Applicant: Asahi Glass Company, LimitedInventors: Yoshiaki HIGUCHI, Seigo KOTERA
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Publication number: 20180009204Abstract: To provide a laminate which has a heat sealing property, a barrier property and mechanical strength, of which elution of impurities from the surface to be in contact with a chemical solution is suppressed, and of which peeling and the like hardly occur at the sealed portion of a bag and at the interfaces between the layers of the laminate when exposed to high temperature, a bag using it and a lithium ion battery. A laminate 10 comprising a first layer 12 containing a fluororesin, a second layer 14 containing a barrier material, a third layer 16 containing a fluororesin and a fourth layer 18 containing a polyamide in this order, wherein each of the fluororesin in the first layer 12 and the fluororesin in the third layer 16 is a fluororesin having a melting point of from 160 to 230° C. and having adhesive functional groups.Type: ApplicationFiled: September 18, 2017Publication date: January 11, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yoshiaki HIGUCHI, Seigo KOTERA
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Publication number: 20180004078Abstract: To provide a film or sheet and a screen excellent in visibility of a projected image, in see-through properties when an image is not projected and in bending resistance. A single-layer film or sheet comprising a fluororesin, a light-scattering agent and a light absorbing agent, characterized in that the light-scattering agent is at least one light-scattering agent selected from the group consisting of a titanium oxide-containing pigment, a zinc oxide-containing pigment and a cerium oxide-containing pigment, and the content thereof is from 0.01 to 0.175 g/m2, and the light absorbing agent is at least one light absorbing agent selected from the group consisting of carbon black, a black interference aluminum pigment, black iron oxide and titanium black, and the content thereof is from 0.0005 to 0.035 g/m2.Type: ApplicationFiled: September 19, 2017Publication date: January 4, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yoshiaki HIGUCHI, Seigo KOTERA
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Publication number: 20170136673Abstract: To provide an ethylene/tetrafluoroethylene copolymer sheet excellent in the mechanical strength and the outer appearance, continuously produced by extrusion, and a process for producing it. An ethylene/tetrafluoroethylene copolymer sheet obtained by extrusion, which is characterized by having R0/d (wherein R0 is an in-plane phase difference [unit: nm], and d is a thickness [unit: nm]) of at most 3.0×10?3, and a thickness of more than 300 ?m, and a process for producing it.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Applicant: Asahi Glass Company, LimitedInventors: Hiroshi ARUGA, Tetsuya HASEGAWA, Sho MASUDA, Yoshiaki HIGUCHI
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Publication number: 20160121575Abstract: To provide a laminate sheet having flame retardancy, transparency and excellent weather resistance, and to provide a production process thereof. A laminate sheet 10, comprising: a layer of a fiber-reinforced resin sheet, which comprises a matrix 12 containing a fluorine atom-free resin, and a glass fiber cloth 14 having an open area ratio of at most 20%, embedded in the matrix 12, and a fluorinated resin layer 16 containing a fluorinated resin and an ultraviolet absorber, provided on at least one side of the layer of a fiber-reinforced resin sheet.Type: ApplicationFiled: January 11, 2016Publication date: May 5, 2016Applicant: Asahi Glass Company, LimitedInventors: Yoshiaki HIGUCHI, Shun SAITO, Kiyoshi KASAHARA
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Publication number: 20160122482Abstract: To provide a fiber-reinforced resin sheet having flame proofing property and being excellent in weather resistance and transparency, and to provide a production process thereof. A fiber-reinforced resin sheet 10, comprising a matrix resin 12 containing at least 50 mass % of a fluorinated resin; and a glass fiber cloth 14 having an open area ratio of at most 20%, embedded in the matrix resin 12, said fiber-reinforced resin sheet having at least 70% of a total light transmittance.Type: ApplicationFiled: January 11, 2016Publication date: May 5, 2016Applicant: Asahi Glass Company, LimitedInventors: Yoshiaki HIGUCHI, Shun SAITO, Kiyoshi KASAHARA
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Patent number: 9306135Abstract: A mold release film, which is adapted to be disposed on the cavity surface of a mold to form a resin-encapsulated portion by encapsulating a semiconductor element of a semiconductor device with a curable encapsulation resin, has a tensile modulus of elasticity of from 10 to 24 MPa at 132° C. as measured in accordance with JIS K 7127, and a peak peel resistance of at most 0.8 N/25 mm.Type: GrantFiled: July 29, 2014Date of Patent: April 5, 2016Assignee: Asahi Glass Company, LimitedInventors: Wataru Kasai, Yoshiaki Higuchi, Masakazu Ataku, Daisuke Taguchi, Satoshi Otsugu
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Publication number: 20140335634Abstract: A mold release film, which is adapted to be disposed on the cavity surface of a mold to form a resin-encapsulated portion by encapsulating a semiconductor element of a semiconductor device with a curable encapsulation resin, has a tensile modulus of elasticity of from 10 to 24 MPa at 132° C. as measured in accordance with JIS K 7127, and a peak peel resistance of at most 0.8 N/25 mm.Type: ApplicationFiled: July 29, 2014Publication date: November 13, 2014Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Wataru KASAI, Yoshiaki HIGUCHI, Masakazu ATAKU, Daisuke TAGUCHI, Satoshi OTSUGU
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Publication number: 20140001661Abstract: Provided is a release film for producing a light emitting diode having desired concaves and convexes accurately transferred directly to the surface of a resin-sealed portion, at a low cost and in high yield, and a process for producing a light emitting diode. A release film 10 having a plurality of convex portions (convex stripes 12) and/or concave portions (grooves 14) formed on the surface is used as a release film to be placed in a cavity of a mold for forming a resin-sealed portion to seal a light emitting element of a light emitting diode.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Applicant: Asahi Glass Company, LimitedInventors: Yoshiaki HIGUCHI, Yasumasa Yukawa