Patents Assigned to Asahi Kasei Fibers Corporation
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Patent number: 8969724Abstract: An object of the present invention is to provide an elastic signal transmission cable having a length of several centimeters to several meters that has a shape deformation tracking ability and enables high-speed signal transmission. The inventive elastic signal transmission cable has an elasticity of 10% or more and transmission loss of 10 dB/m or less in a relaxed state at 250 MHz, and comprises an elastic cylindrical body having an elasticity of 10% or more and a conductor portion containing at least two conductor wires wound in the same direction around the elastic cylindrical body.Type: GrantFiled: June 25, 2008Date of Patent: March 3, 2015Assignee: Asahi Kasei Fibers CorporationInventors: Shunji Tatsumi, Yasunori Yuuki, Hiroyuki Makino
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Patent number: 8962499Abstract: An object of the present invention is to provide a base fabric suitable for the production of a general-purpose airbag having a higher airtight performance with reduced air permeability, a high pressure resistance in the boundary portion between the inflating part and the non-inflating part, and a high impact absorption for an occupant, and a base fabric for an airbag of the present invention comprises a woven fabric formed of a multifilament synthetic fiber having a total fineness of 200 to 550 dtex and a single filament fineness of 2.0 to 7.0 dtex, wherein the elongation is, on average of warp and weft, from 5 to 15% and from 15 to 30% under loads of 50 N/cm and 300 N/cm, respectively, and the pullout resistance of the constituent yarn is from 50 to 200 N/cm/cm on average of warp and weft.Type: GrantFiled: August 23, 2011Date of Patent: February 24, 2015Assignee: Asahi Kasei Fibers CorporationInventors: Takeshi Tanaka, Fumiaki Ise, Tokio Okuno, Masato Enoki
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Patent number: 8953304Abstract: There is provided a high performance solid electrolytic capacitor that can be manufactured stably. The present invention provides the solid electrolytic capacitor comprising an anode foil and a cathode foil, and a separator arranged between the anode foil and the cathode foil, wherein the anode foil, the cathode foil, and the separator are wound around, so that the separator is intervened between the anode foil and the cathode foil, the anode foil has a dielectric oxide film layer, the separator comprises a solid electrolyte and a nonwoven fabric holding the solid electrolyte, the nonwoven fabric composing the separator is a laminated nonwoven fabric having at least two layers of the nonwoven fabric layers, and the laminated nonwoven fabric comprises a nonwoven fabric layer (layer I) composed of ultra fine fiber having a fiber diameter of 0.1 to 4 ?m, and a nonwoven fabric layer (layer II) composed of a thermoplastic resin fiber having a fiber diameter of 6 to 30 ?m.Type: GrantFiled: August 19, 2010Date of Patent: February 10, 2015Assignee: Asahi Kasei Fibers CorporationInventors: Kazufumi Kato, Rumina Obi, Ikuo Ueno
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Patent number: 8927676Abstract: The object of the present invention is to provide a polyurethane film having heat adhesion and further having high stress retention and excellent elastic functions, and the polyurethane film of the present invention is a heat adherent polyurethane film wherein the thermal adhesion peeling stress indicated by a maximum stress when separating a film from a cotton fabric after hot-pressing the film to the cotton fabric at a temperature of 130° C. under a pressure of 4 bar for 25 seconds is 5.88 N/cm or more and the stress retention at an elongation percentage of 200% indicated by a ratio of a stress (fR) in recovery to a stress (fS) in stretching at an elongation percentage of 200% in an S-S curve drawn when the film is stretched to an elongation percentage of 300% and then recovered is 40% or more.Type: GrantFiled: August 20, 2008Date of Patent: January 6, 2015Assignee: Asahi Kasei Fibers CorporationInventors: Satoru Yoshida, Junichi Kojima
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Patent number: 8920922Abstract: Disclosed is a polyurethane urea elastic fiber containing 5-40% by weight of a polyurethane compound, wherein the compression deformation starting temperature determined by thermomechanical analysis (TMA) is not less than 150° C. but not more than 180° C. and time for thermal cutting at 180° C. is not less than 30 seconds.Type: GrantFiled: July 3, 2007Date of Patent: December 30, 2014Assignee: Asahi Kasei Fibers CorporationInventors: Taro Yamamoto, Junichi Kojima
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Patent number: 8883659Abstract: An object of the present invention is to provide an airbag module ensuring that when an airbag fabricated using a fabric composed of a polyamide yarn excellent in heat resistance is deployed by an inflator gas, the deployment occurs without loss of the gas and an excessive amount of generated gas is not necessary, as a result, the inflator is reduced in weight, and the airbag module of the present invention comprises an airbag fabric composed of a polyamide yarn, wherein the air permeability of the fabric under a pressure of 200 kPa is from 10 to 200 cc/cm2/sec and in the thermal stress of the constituent yarn as measured under the conditions of an initial load of 0.02 cN/dtex, a yarn length of 25 cm and a temperature rise rate of 80° C./min, the summed thermal stress of the total of the warp yarn and the weft yarn at 230° C. is from 0.33 to 1.20 cN/dtex.Type: GrantFiled: December 26, 2013Date of Patent: November 11, 2014Assignee: Asahi Kasei Fibers CorporationInventor: Fumiaki Ise
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Publication number: 20140308482Abstract: The purpose of the present invention to provide an adhesive tape that has a feel and texture that is very close to paper tape; that follows curbed surfaces, rough surfaces, and irregular surfaces well; has excellent water resistance; is not susceptible to tearing when removed after the completion of work; and is easily cut by hand. The adhesive tape of the present invention is characterized as follows: a tape base cloth comprises spunbonded thermoplastic long fiber non-woven cloth with a basis weight of 15-60 g/m2 and the tape is embossed in the width direction; a tape substrate sheet is prepared by permeating the tape base cloth with a synthetic resin having a glass transition temperature of no more than 20° C. so that the quantity of synthetic resin after drying is 5-150% by weight of the total basis weight of non-woven cloth; and an adhesive agent is applied to one side of the tape substrate sheet and a release agent to the other side thereof.Type: ApplicationFiled: November 9, 2012Publication date: October 16, 2014Applicant: ASAHI KASEI FIBERS CORPORATIONInventors: Yasuhiro Masunari, Tetsuo Kurose, Katsuji Omizu, Hirofumi Iwasaki
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Publication number: 20140238084Abstract: The present invention pertains to a stretch knitted fabric which exhibits an instantaneous temperature rise when stretched and which, by the repetition of stretching and relaxation, lastingly generates heat when stretched. A stretch knitted fabric which is composed of a non-elastic yarn and an elastic yarn, characterized in that the instantaneous temperature rise caused by heat generation at 100% warpwise and/or weftwise stretching is 1.0° C. or more.Type: ApplicationFiled: May 21, 2012Publication date: August 28, 2014Applicant: Asahi Kasei Fibers CorporationInventors: Yuji Yoshida, Mayumi Notsu
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Patent number: 8795403Abstract: The present invention provides a filter cloth for a dust collector which shows low pressure loss, no clogging, superior dust shaking-off performance, and durability for continuous use without impairing collection performance, even under such dust collection conditions as high speed filtration and high dust concentration. The filter cloth for a dust collector relevant to the present invention is a filter cloth which is made by laminating and integrating a filtration layer of a nonwoven fabric layer consisting of a thermoplastic fiber and a support layer consisting of a woven fabric layer, characterized in that at least filtration surface layer of said laminated and integrated filter cloth has a concave-convex shape having a height from hill part to trough part of 1.6 to 20.0 mm.Type: GrantFiled: August 9, 2010Date of Patent: August 5, 2014Assignees: Asahi Kasei Fibers Corporation, Asamasu Co., Ltd.Inventors: Yukimasa Kuroda, Yutaka Sasaki, Yoshihiro Takagi, Isao Kimura
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Publication number: 20140106098Abstract: An object of the present invention is to provide an airbag module ensuring that when an airbag fabricated using a fabric composed of a polyamide yarn excellent in heat resistance is deployed by an inflator gas, the deployment occurs without loss of the gas and an excessive amount of generated gas is not necessary, as a result, the inflator is reduced in weight, and the airbag module of the present invention comprises an airbag fabric composed of a polyamide yarn, wherein the air permeability of the fabric under a pressure of 200 kPa is from 10 to 200 cc/cm2/sec and in the thermal stress of the constituent yarn as measured under the conditions of an initial load of 0.02 cN/dtex, a yarn length of 25 cm and a temperature rise rate of 80° C./min, the summed thermal stress of the total of the warp yarn and the weft yarn at 230° C. is from 0.33 to 1.20 cN/dtex.Type: ApplicationFiled: December 26, 2013Publication date: April 17, 2014Applicant: Asahi Kasei Fibers CorporationInventor: Fumiaki ISE
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Patent number: 8693829Abstract: Disclosed is an extensible optical signal transmission cable having an extensity of 10% or more and an optical transmission loss of less than 20 dB/m when the cable is loosened. The cable comprises an elastic cylinder having the extensity of 10% or more and at least one optical fiber wound around the elastic cylinder. The optical fiber has a bending diameter (R) which is not smaller than the bending limit diameter (Re). The extensible optical signal transmission cable is compliant with shape deformation, can transmit an optical signal when the cable is extended or contracted, and can be used in repetitive extension and contraction.Type: GrantFiled: December 25, 2009Date of Patent: April 8, 2014Assignee: Asahi Kasei Fibers CorporationInventors: Shunji Tatsumi, Hiroyuki Makino
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Patent number: 8652977Abstract: The present invention provides a heat-resistant nonwoven fabric wherein the nonwoven fabric is formed from a poly(phenylene sulfide) fiber, and 30% by weight or more of the poly(phenylene sulfide) fiber has a crystallinity of 25 to 50%. Moreover, the properties of the heat-resistant nonwoven fabric can be further improved by making the nonwoven fabric have a multilayer structure in which layers composed of a poly(phenylene sulfide) filamentary fiber and layers composed of a poly(phenylene sulfide) fine fiber are stacked and integrated.Type: GrantFiled: September 21, 2007Date of Patent: February 18, 2014Assignee: Asahi Kasei Fibers CorporationInventors: Toshiyuki Shimizu, Masahiko Maeda
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Patent number: 8642489Abstract: An object of the present invention is to provide an airbag module ensuring that when an airbag fabricated using a fabric composed of a polyamide yarn excellent in heat resistance is deployed by an inflator gas, the deployment occurs without loss of the gas and an excessive amount of generated gas is not necessary, as a result, the inflator is reduced in weight, and the airbag module of the present invention comprises an airbag fabric composed of a polyamide yarn, wherein the air permeability of the fabric under a pressure of 200 kPa is from 10 to 200 cc/cm2/sec and in the thermal stress of the constituent yarn as measured under the conditions of an initial load of 0.02 cN/dtex, a yarn length of 25 cm and a temperature rise rate of 80° C./min, the summed thermal stress of the total of the warp yarn and the weft yarn at 230° C. is from 0.33 to 1.20 cN/dtex.Type: GrantFiled: June 2, 2010Date of Patent: February 4, 2014Assignee: Asahi Kasei Fibers CorporationInventor: Fumiaki Ise
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Patent number: 8629187Abstract: An object of the present invention is to provide cellulose fine particles having a small particle diameter and a high average polymerization degree, and a liquid dispersion or a solid dispersion thereof. The inventive cellulose fine particles have an average particle diameter of 9 to 400 nm and an average polymerization degree (DP) of cellulose of 150 to 3,000.Type: GrantFiled: January 11, 2008Date of Patent: January 14, 2014Assignee: Asahi Kasei Fibers CorporationInventors: Yoshiyuki Shiomi, Nobuyuki Mimura
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Patent number: 8513148Abstract: A thermally adhesive laminated nonwoven fabric that is a laminated nonwoven fabric in which nonwoven fabrics of the following (a) layer, (b) layer and (c) layer are integrated by heat contact bonding: (a) layer having at least one filament yarn nonwoven fabric layer composed of a thermoplastic resin; (b) layer having at least one extremely fine yarn nonwoven fabric layer composed of the same type of thermoplastic resin as that of the (a) layer; and (c) layer having at least one composite filament yarn nonwoven fabric layer composed of a thermoplastic resin, and that satisfies the following (1) and (2): (1) a difference between the melting point of the yarn forming the nonwoven fabric of the (a) layer and that of a yarn forming the nonwoven fabric of the (b) layer is 30° C.Type: GrantFiled: January 24, 2007Date of Patent: August 20, 2013Assignee: Asahi Kasei Fibers CorporationInventors: Takaharu Irie, Ikuo Ueno
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Publication number: 20130209743Abstract: The knitted fabric of the present invention is knitted fabric which is not stuffy and is comfortable during insensible perspiration or slight perspiration, which even after considerable perspiration due to exercise etc. does not make the wearer feel sticky, wet, or cold because of the sweat, and which has a satisfactory texture and excellent wear resistance. The knitted fabric comprises 5-25 wt. % cellulosic filaments and 75-95 wt. % synthetic fibers, and is characterized in that in at least one surface A thereof, the proportion of the area occupied by the cellulosic filaments to the overall area of the knitted fabric in the region of the knitted fabric which ranges to a depth of 0.13 mm is 0.2-15% and that surface A to which moisture was imparted in an amount of 200 g/m2 has a degree of coldness to the touch of 180-330 W/m2·° C.Type: ApplicationFiled: March 31, 2011Publication date: August 15, 2013Applicant: Asahi Kasei Fibers CorporationInventors: Junko Deguchi, Shoichi Akita
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Publication number: 20130146450Abstract: [Problems] To provide an ion-exchange membrane using an inexpensive nonwoven fabric sheet as a base sheet, featuring excellent properties such as strength, dimensional stability and shape stability, effectively suppressing undulation when it is brought into contact with the electrolyte, and having a low membrane resistance and stable properties. [Means for Solution] An ion-exchange membrane comprising a nonwoven fabric sheet 1 and an ion-exchange resin coating 3 formed on one surface of the nonwoven fabric sheet 1, the nonwoven fabric sheet 1 having a fiber layer structure that includes long filament layers 5 of a fiber diameter of 8 to 30 ?m on both surfaces thereof and an extra-fine filament layer 7 of a fiber diameter of not more than 5 ?m as an intermediate layer formed by melt-adhesion of fibers between the long filament layers 5.Type: ApplicationFiled: August 8, 2011Publication date: June 13, 2013Applicants: ASAHI KASEI FIBERS CORPORATION, ASTOM CORPORATIONInventors: Masayuki Kishino, Toshio Aritomi, Kiyotaka Yoshie, Minoru Yoshida, Tatsuhiko Miya, Ikuo Ueno
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Patent number: 8349103Abstract: The present invention provides a method of making a laminated nonwoven fabric wherein the nonwoven fabric is a laminated one formed by integrating, through compressive bonding, a stacked nonwoven fabric structure comprising an upper and a lower thermoplastic synthetic filamentary fiber layer that have a fiber diameter from 7 pm or more to 20 pm, and an intermediate layer composed of thermoplastic synthetic fine fibers that have a fiber diameter of 5 pm or less, the laminated nonwoven fabric having an intimately mixed structure in which a portion of the fine fibers is intruded into at least one face side of the filamentary fiber layers with an intrusion index of 0.36 or more to bond, surround or interlace the filamentary fibers, a basis of weight of from 10 g or more to 250 g/m2, and a bulk density of 0.20 g/cm3 or more.Type: GrantFiled: March 18, 2011Date of Patent: January 8, 2013Assignee: Asahi Kasei Fibers CorporationInventors: Ryuji Suzuka, Mitsuji Nakakita
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Patent number: 8294029Abstract: An expandable electric cord having a core portion, a conductor portion and a sheath portion; wherein the core portion is an elastic cylinder having an elastic body and an intermediate layer covering the outer periphery thereof. The conductor portion contains a conductor wire having narrow stranded wires, with the conductor wire being coiled and/or braided around the outer periphery of the elastic cylinder, and the sheath portion is an outer sheath layer having an insulator that covers the outer periphery of the conductor portion.Type: GrantFiled: December 26, 2007Date of Patent: October 23, 2012Assignee: Asahi Kasei Fibers CorporationInventor: Shunji Tatsumi
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Patent number: 8207073Abstract: A highly water pressure-resistant polyester nonwoven fabric having a water pressure resistance of 2 kPA or more and composed of a laminated nonwoven fabric structure that is integrated by thermocompressive bonding an extremely fine fiber nonwoven fabric layer in which a polyester material is mixed with 1% or more of a polyolefin material and which has a fiber diameter of 5 ?m or less, and a polyester filamentary fiber nonwoven fabric layer having a fiber diameter of 7 ?m or more. The polyester nonwoven fabric is a nonwoven fabric material appropriate to moisture-permeable waterproof sheets used for building materials and shoe materials and, moreover, to fields requiring filtering properties, for example, various packaging materials such as dry packaging materials used as packaging materials and sterilization packaging materials also required to have radiation resistance and peel strength.Type: GrantFiled: March 18, 2004Date of Patent: June 26, 2012Assignee: Asahi Kasei Fibers CorporationInventors: Tomoyuki Hosokawa, Ryuji Suzuka