Patents Assigned to Japan Exlan Company Limited
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Publication number: 20180062164Abstract: According to the present invention, there is provided an acrylonitrile-based fiber for electrodes which contains a hydrophilic ingredient in an inner area of the fiber and has a volume resistivity of not more than 1×109 ?·cm.Type: ApplicationFiled: March 25, 2016Publication date: March 1, 2018Applicant: JAPAN EXLAN COMPANY LIMITEDInventors: Osamu YAMASHITA, Katsuji SAKAGUCHI
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Patent number: 9254345Abstract: In the prior art, there has not been provided a fiber that can quickly and persistently deodorize and absorb the smell and the damp feeling due to body fluid generated from the body. The present invention provides a fiber having such property, and specifically provides a moisture-absorbing and deodorizing fiber, characterized in that, a basic polymer is ionically-bonded in an amount of 0.2 to 4 mmol/g as an amount of amino group onto the surface of a moisture-absorbing fiber having a crosslinked structure and also having 3 to 8 mmol/g of carboxyl group.Type: GrantFiled: November 7, 2012Date of Patent: February 9, 2016Assignee: JAPAN EXLAN COMPANY LIMITEDInventor: Naoki Kawanaka
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Patent number: 9040631Abstract: The present invention provides padding which is suitable as bedding and clothing items having both exothermic property upon moisture absorption and bulkiness in high levels and being able to give comfortable environment to human body. The present invention relates to a padding containing 25 to 85% by weight of polyester fiber, characterized in that the padding contains 15 to 75% by weight of a cross-linked polyacrylate fiber of a magnesium salt type and/or a calcium salt type.Type: GrantFiled: June 29, 2012Date of Patent: May 26, 2015Assignees: TOYOBO CO., LTD., JAPAN EXLAN COMPANY LIMITEDInventors: Atsushi Kato, Naoki Kawanaka, Masao Ieno
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Publication number: 20150133607Abstract: The present invention provides padding which is suitable as bedding and clothing items having both exothermic property upon moisture absorption and bulkiness in high levels and being able to give comfortable environment to human body. The present invention relates to a padding containing 25 to 85% by weight of polyester fiber, characterized in that the padding contains 15 to 75% by weight of a cross-linked polyacrylate fiber of a magnesium salt type and/or a calcium salt type.Type: ApplicationFiled: June 29, 2012Publication date: May 14, 2015Applicants: JAPAN EXLAN COMPANY LIMITED, TOYOBO CO., LTD.Inventors: Atsushi Kato, Naoki Kawanaka, Masao Ieno
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Publication number: 20140314828Abstract: In the prior art, there has not been provided a fiber that can quickly and persistently deodorize and absorb the smell and the damp feeling due to body fluid generated from the body. The present invention provides a fiber having such property, and specifically provides a moisture-absorbing and deodorizing fiber, characterized in that, a basic polymer is ionically-bonded in an amount of 0.2 to 4 mmol/g as an amount of amino group onto the surface of a moisture-absorbing fiber having a crosslinked structure and also having 3 to 8 mmol/g of carboxyl group.Type: ApplicationFiled: November 7, 2012Publication date: October 23, 2014Applicant: Japan Exlan Company LimitedInventor: Naoki Kawanaka
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Patent number: 8183324Abstract: The present invention is an antistatic acrylic fiber which comprises 90 to 99% by weight of acrylonitrile polymer containing 80 to 100% by weight of acrylonitrile as a constituting component and 10 to 1% by weight of acrylic antistatic resin containing 10 to 70% by weight of acrylonitrile as a constituting component, characterized in that alkali metal ion is contained in the fiber in an amount of not less than 150 ppm. The acrylic fiber of the present invention has antistatic property which does not lower so much even if the fiber is subjected to a spinning and dyeing step.Type: GrantFiled: June 19, 2009Date of Patent: May 22, 2012Assignee: Japan Exlan Company LimitedInventors: Yoshiki Yamato, Yoshihiro Watanabe
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Patent number: 7998312Abstract: Moisture absorptive and desorptive paper having both high moisture absorptive and desorptive properties and high dimensional stability is provided. Moisture absorptive and desorptive paper comprising organic fine particles having cross-linking structure and 1 to 10 mmol/g of acidic group where not less than 1 mmol/g of metal ion of at least one kind of metal selected from the group consisting of Li, Na, K, Mg and Ca is bonded to said acidic group, inorganic fiber and pulp-shaped fiber. By the basic constitution as above, on one hand the moisture absorptive and desorptive properties inherent to the organic fine particles are efficiently utilized by suppressing the use of binder as much as possible, and on the other hand deformation or thermal shrinking of the paper due to swelling in water at the time of absorption etc. is able to be suppressed.Type: GrantFiled: November 29, 2004Date of Patent: August 16, 2011Assignee: Japan Exlan Company LimitedInventors: Ryosuke Nishida, Hideo Naka
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Patent number: 7704305Abstract: As conventional heat exchange modules, adsorptive agents of an inorganic type such as silica gel, zeolite, active alumina, active carbon and molecular sieve have been used. While these adsorptive agents have characteristics of high moisture absorptive ability and easy handling, they have problems of durability, regenerating temperature and generation of bacteria or fungi. An object of the present invention is to solve these problems which are noted in the inorganic adsorptive agents and to provide a heat exchanger module of a energy conservation type having a high heat exchange efficiency and a method for the manufacture thereof. The present invention is a heat exchange module of a sorptive type, characterized in that, a moisture absorptive layer in which a sorptive agent of an organic polymer type comprising organic polymer having hydrophilic polar group and cross-linking structure in a molecule is an essential component, saturated moisture absorbing rates at 20° C.Type: GrantFiled: August 22, 2005Date of Patent: April 27, 2010Assignee: Japan Exlan Company LimitedInventor: Ryosuke Nishida
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Patent number: 7696283Abstract: The present invention provides fiber and a fiber structure having a high flame-retarding property and high moisture-absorptive property which do not generate noxious gases such as hydrogen halide gas upon burning, do not elute heavy metal compounds and phosphorus compounds therefrom even when reclaimed upon discarding including a burning treatment and have an excellent processing property. The present invention discloses a highly flame-retarding and moisture-absorptive fiber, characterized in that, it comprises an organic polymer having a cross-linking structure and a salt-type carboxyl group in which at least a part of such a salt-type carboxyl group is a magnesium salt type and a saturated moisture absorption rate at 20° C. and 65% relative humidity and a limiting oxygen index are not less than 35% by weight and not less than 35, respectively, and a flame-retarding fiber structure wherein the highly flame-retarding and moisture-absorptive fiber is used in at least a part of the structure.Type: GrantFiled: July 29, 2005Date of Patent: April 13, 2010Assignee: Japan Exlan Company LimitedInventors: Masao Ieno, Ryosuke Nishida
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Patent number: 7537823Abstract: A moisture absorbing hygroscopic fiber having high whiteness, characterized in that (1) acrylic fiber comprising acrylonitrile copolymer where a (meth)acrylate compound as a copolymer component is less than 5% by weight is treated with a hydrazine compound whereby introduction of crosslink and increase in nitrogen content to an extent of 1.0 about 10.0% by weight is carried out, (2) treatment with an aqueous solution of alkaline metal salt is carried out whereby carboxyl group of a metal salt type by which CN group is hydrolyzed is produced in an amount of 4.0 about 10.0 meq/g and (3) a reducing treatment by a reduction treatment agent selected from a group consisting of hydrosulfite, thiosulfate, sulfite, nitrite, thiourea dioxide, and ascorbate compound is carried out.Type: GrantFiled: November 2, 2001Date of Patent: May 26, 2009Assignee: Japan Exlan Company LimitedInventors: Shigeru Nakashima, Noriyuki Kohara, Masao Ieno
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Patent number: 7468414Abstract: To provide moisture absorptive and desorptive ultrafine particles having high moisture absorptive and moisture desorptive properties and particularly having an excellent moisture absorptive rate and also a product using said ultrafine particles. Moisture absorptive and desorptive ultrafine particles, characterized in that, the said particles consist of a cross-linked polymer containing 1.0 to 10.0 meq/g of a salt-type carboxyl group as a polar group where an average primary particle size is not more than 0.2 ?m and saturated moisture absorptive ratios at 65% RH and 90% RH at 20° C. are not less than 20% by weight and not less than 40% by weight, respectively.Type: GrantFiled: November 18, 2004Date of Patent: December 23, 2008Assignee: Japan Exlan Company LimitedInventor: Ryosuke Nishida
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Publication number: 20080093059Abstract: As conventional heat exchange modules, adsorptive agents of an inorganic type such as silica gel, zeolite, active alumina, active carbon and molecular sieve have been used. While these adsorptive agents have characteristics of high moisture absorptive ability and easy handling, they have problems of durability, regenerating temperature and generation of bacteria or fungi. An object of the present invention is to solve these problems which are noted in the inorganic adsorptive agents and to provide a heat exchanger module of a energy conservation type having a high heat exchange efficiency and a method for the manufacture thereof. The present invention is a heat exchange module of a sorptive type, characterized in that, a moisture absorptive layer in which a sorptive agent of an organic polymer type comprising organic polymer having hydrophilic polar group and cross-linking structure in a molecule is an essential component, saturated moisture absorbing rates at 20° C.Type: ApplicationFiled: August 22, 2005Publication date: April 24, 2008Applicant: JAPAN EXLAN COMPANY LIMITED, a corporation of JapanInventor: Ryosuke Nishida
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Patent number: 7309725Abstract: A fibrous base material giving a wet frictional material used for clutch, differential gear, brake, etc. of cars, industrial machines, etc. having an excellent durability where plastic deformation of fiber and deterioration by acidic decomposition products of lubricant additives do not take place is provided. A fibrous base material for wet frictional materials which comprises a fiber component, a friction adjusting material and a filler, said fiber component containing 5 to 50% by weight of a homoacrylonitrile fiber where modulus of elasticity at 180° C. is not less than 10 cN/dtex and shrinking rate at 200° C. is within 5% and/or a homoacrylonitrile fiber in a pulp form prepared by fibrillation of said homoacrylonitrile fiber.Type: GrantFiled: July 15, 2002Date of Patent: December 18, 2007Assignee: Japan Exlan Company LimitedInventor: Kazuhiro Sasaki
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Patent number: 7273501Abstract: A highly white and highly moisture absorptive and desorptive fibrous structure where a moisture absorptive and desorptive synthetic fiber having a saturated index of moisture absorption of 10% by weight or more at 20° C. and 65% RH is blended, characterised in that, degree of whiteness of said fibrous structure in terms of indication method described in JIS Z 8729 is that L* is 90 or more, a* is within a range of ±2 and b* is within a range of ±10 and durability of whiteness degree against washing after washing for ten times is class 3-4 or higher.Type: GrantFiled: July 15, 2002Date of Patent: September 25, 2007Assignee: Japan Exlan Company, LimitedInventors: Shigeru Nakashima, Jo Mizobe
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Publication number: 20070079623Abstract: Described herein is a desiccant air-conditioning system which is characterized in that the system is equipped with an introducing route where process air is introduced into a geothermal heat exchanger, a supplying route where the process air which is cooled by the geothermal heat exchanger is introduced into a space to be air-conditioned and a desiccant wheel which is placed in an extending manner over both of the introducing route and the supplying route and, when the desiccant wheel is rotated so that each part thereof is successively positioned to said introducing route and supplying route, the process air after cooling is dehumidified by said desiccant wheel and the desiccant wheel is regenerated by the process air before cooling.Type: ApplicationFiled: September 14, 2006Publication date: April 12, 2007Applicant: JAPAN EXLAN COMPANY LIMITEDInventors: Hideo Inaba, Kensaku Maeda, Ryosuke Nishida
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Patent number: 7071130Abstract: Segregating membrane supporting material is a three-dimensional assembly of fibers thermo-compressed into non-woven fabric, and the non-woven fabric fibers are joined together in sheet form. This segregating membrane supporting material is non-woven fabric, including at least 10 weight % polyacrylonitrile-based synthetic fibers, which is thermo-compressed to give an overall bulk density 40% to 75% of the density of the fibers which make up the non-woven fabric.Type: GrantFiled: July 21, 2003Date of Patent: July 4, 2006Assignees: Awa Paper Mfg. Co., Ltd., Japan Exlan Company LimitedInventors: Yoshitsugu Hama, Hideo Naka, Yoshifumi Kusaka, Akihiro Okubo
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Patent number: 6613828Abstract: It is disclosed that an antibacterial acrylonitrile fiber having a photocatalytic activity in which an acrylonitrile fiber containing an antibacterially active metal compound is subjected to a heat treatment within a range of pH 1-6.Type: GrantFiled: September 21, 2000Date of Patent: September 2, 2003Assignee: Japan Exlan Company LimitedInventors: Hiroki Kourai, Hideo Naka
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Patent number: 6541587Abstract: It is disclosed that a saccharide-derived monomer in which polymerizable functional group is introduced into hydroxyl group or other functional group contained in a saccharide or a saccharide derivative compound and cyanoethyl group is introduced into all of or a part of the remaining hydroxyl group or other functional group.Type: GrantFiled: August 18, 2000Date of Patent: April 1, 2003Assignee: Japan Exlan Company LimitedInventors: Ryosuke Nishida, Hiroshi Ono, Motoyasu Fukukawa
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Patent number: 6429265Abstract: Disclosed herein is a moisture-absorbing and desorbing polymer, characterized in that, the said polymer is an organic high-molecular substance containing 1.0-8.0 meq/g of carboxyl group of a potassium type and having a cross-linking structure.Type: GrantFiled: April 12, 2000Date of Patent: August 6, 2002Assignee: Japan Exlan Company LimitedInventor: Ryosuke Nishida
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Patent number: 6080797Abstract: There is disclosed a porous moisture-absorbing and desorbing polymer, characterized in that, said polymer is an organic polymer containing 2.0-12.0 meq/g of carboxyl-groups of a salt type, having a cross-linking structure and having macropores of not less than 1 m.sup.2 /g of specific surface area and 0.005-1.0 .mu.m of average pore size.Type: GrantFiled: May 28, 1999Date of Patent: June 27, 2000Assignee: Japan Exlan Company LimitedInventor: Ryosuke Nishida