Patents Assigned to Japan Vilene Company
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Publication number: 20170232705Abstract: Provided is an air-permeable sheet (3) to be used in a state of being interposed between a suction stage (1) and an air-impermeable substrate (4) when printing is performed by a sheet-fed method on the surface of the substrate (4) fixed by suction to the suction stage (1), the air-permeable sheet capable of printing a desired printing pattern on the surface of the substrate with high accuracy. The air-permeable sheet (3) includes a non-woven fabric layer (3b) and a support layer (3a) constituted by a woven fabric or knitted fabric.Type: ApplicationFiled: April 17, 2015Publication date: August 17, 2017Applicants: Japan Vilene Company, Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Kenichi NOMURA, Hirobumi USHIJIMA, Kengo NOGUCHI, Noriko MICHIHATA, Takeshi KOBAYASHI, Masaaki KAWABE
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Publication number: 20170216750Abstract: A filtration material of the present invention comprises a bulky fiber sheet layer having a thickness of 0.5 mm or more, and a triboelectrically-charged nonwoven fabric layer in which two or more types of fibers different in constituent resin are mixed, wherein constituent fibers of the triboelectrically-charged nonwoven fabric layer penetrate into the bulky fiber sheet layer. A three-layer filtration material of the present invention comprises bulky fiber sheet layers having a thickness of 0.5 mm or more, and a triboelectrically-charged nonwoven fabric layer, which is located between the bulky fiber sheet layers, wherein the constituent fibers of the triboelectrically-charged nonwoven fabric layer penetrate into the bulky fiber sheet layers, and both bulky fiber sheet layers contain fibers having a limiting oxygen index of 20 or more, and have a mass per unit area 0.5 times or more than that of the triboelectrically-charged nonwoven fabric layer.Type: ApplicationFiled: July 22, 2015Publication date: August 3, 2017Applicant: Japan Vilene Company, Ltd.Inventors: Satoru KOBORI, Naoki MATSUDA, Takashi NISHITANI
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Patent number: 9685663Abstract: The base material for a gas diffusion electrode of the present invention comprises a nonwoven fabric containing conductive fibers that contain conductive particles at least in the inside of an organic resin, and is characterized in that a specific apparent Young's modulus of the base material for a gas diffusion electrode is 40 [MPa/(g/cm3)] or more. Since the base material contains conductive fibers that contain conductive particles at least in the inside of an organic resin, it is flexible, and as a result, a polymer electrolyte membrane is not directly damaged. Further, since the specific apparent Young's modulus is 40 [MPa/(g/cm3)] or more, which indicates a high rigidity, and swelling and shrinkage of the polymer electrolyte membrane can be inhibited, cracking of the polymer electrolyte membrane can be avoided.Type: GrantFiled: May 15, 2014Date of Patent: June 20, 2017Assignee: JAPAN VILENE COMPANY, LTD.Inventors: Tatsunori Ito, Takashi Tarao
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Publication number: 20170110735Abstract: The object of the present invention is to provide a conductive porous material that has a large specific surface area, that is not easily damaged by pressure, and that can be applied to a variety of applications; a polymer electrolyte fuel cell, and a method of manufacturing a conductive porous material. The conductive porous material is one which is an aggregate of fibrous substances comprising first conductive materials, and second conductive materials that connect between the first conductive materials, and its specific surface area is 100 m2/g or more, and its thickness retention rate after pressing at 2 MPa is 60% or more. Such a conductive porous material can be manufactured by spinning a spinning solution containing a first conductive material and a carbonizable organic material to form a precursor fiber porous material in which precursor fibers are aggregated, and carbonizing the carbonizable organic material to convert it into a second conductive material.Type: ApplicationFiled: March 24, 2015Publication date: April 20, 2017Applicant: JAPAN VILENE COMPANY, LTD.Inventors: Tatsunori ITO, Takashi TARAO, Kaori HARIGAYA
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Patent number: 9610832Abstract: An object of the present invention is, even when the design of a weather strip body with a specific gravity of about 0.5 to 0.85 is improved using a nonwoven fabric, to provide a weather strip with excellent trackability and excellent adhesiveness between the weather strip body and the nonwoven fabric. The weather strip of the present invention comprises a weather strip body having a specific gravity of 0.5 to 0.85 and made of an ethylene-propylene copolymer rubber, an adhesive resin sheet comprising random polypropylene and a polypropylene-based thermoplastic elastomer, and a nonwoven fabric, said nonwoven fabric being attached to the weather strip body via the adhesive resin sheet.Type: GrantFiled: March 25, 2015Date of Patent: April 4, 2017Assignees: JAPAN VILENE COMPANY, LTD., TOYODA GOSEI CO., LTD.Inventors: Tatsuhiko Tsumura, Hirofumi Otsuka, Kazuhiro Takahashi
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Publication number: 20160332359Abstract: Provided is a fiber sheet for molding, characterized in that a print resin is applied on the surface of the fiber sheet containing highly crimped fibers, and the amount of the print resin is 30 g/m2 or less, and the air permeability of the fiber sheet is 5 to 30 cm3/cm2/sec. The fiber sheet for molding can be molded without generating wrinkles, and has a good sound absorbing property. When a pattern is formed with the printing resin, the fiber sheet for molding is also excellent in design properties.Type: ApplicationFiled: May 4, 2016Publication date: November 17, 2016Applicant: JAPAN VILENE COMPANY, LTD.Inventors: Masaki KOBAYASHI, Takashi TOKIWA
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Publication number: 20160244899Abstract: An object of the present invention is to provide a nonwoven fabric for molding with a good moldability, even when it is a binder-bonded and/or printed nonwoven fabric; and a surface material for automobile. In the nonwoven fabric for molding of the present invention, a binder for fiber bonding and/or a printing is applied to a fiber web, and a stress at 20% elongation in the cross direction of the nonwoven fabric for molding is 24 to 36 N/3-cm-width. The surface material for automobile of the present invention consists of the nonwoven fabric for molding. In the present invention, it has been found that a good moldability is achieved when a stress at 20% elongation in the cross direction is 24 to 36 N/3-cm-width.Type: ApplicationFiled: February 19, 2016Publication date: August 25, 2016Applicant: JAPAN VILENE COMPANY, LTD.Inventor: Shinsuke MINAMIDE
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Publication number: 20160118669Abstract: The base material for a gas diffusion electrode of the present invention comprises a nonwoven fabric containing conductive fibers that contain conductive particles at least in the inside of an organic resin, and is characterized in that a specific apparent Young's modulus of the base material for a gas diffusion electrode is 40 [MPa/(g/cm3)] or more. Since the base material contains conductive fibers that contain conductive particles at least in the inside of an organic resin, it is flexible, and as a result, a polymer electrolyte membrane is not directly damaged. Further, since the specific apparent Young's modulus is 40 [MPa/(g/cm3)] or more, which indicates a high rigidity, and swelling and shrinkage of the polymer electrolyte membrane can be inhibited, cracking of the polymer electrolyte membrane can be avoided.Type: ApplicationFiled: May 15, 2014Publication date: April 28, 2016Applicant: Japan Vilene Company, Ltd.Inventors: Tatsunori ITO, Takashi TARAO
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Patent number: 9289632Abstract: Provided is an electrically charged filter which has a high initial filtering efficiency and is not liable to decline in filtering efficiency, by including a liquid-charged nonwoven fabric layer that is charged by application of force via a polar liquid, and a tribo-electrically charged nonwoven fabric layer that is charged by friction between fiber components of a plurality of types.Type: GrantFiled: May 2, 2011Date of Patent: March 22, 2016Assignee: Japan Vilene Company, Ltd.Inventors: Masami Takeuchi, Yuichirou Takashima
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Publication number: 20160053090Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 ?m or less, the average fiber length is 200 ?m or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 ?m or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 ?m or less, and the CV value of the fiber length becomes 0.7 or less.Type: ApplicationFiled: February 6, 2014Publication date: February 25, 2016Applicant: JAPAN VILENE COMPANY, LTD.Inventors: Yusuke KOSAKA, Takashi TARAO
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Publication number: 20150352021Abstract: Provided is a functional nonwoven fabric that has good feeling upon use, such as hand feeling (softness) or texture, and is capable of stably exhibiting the characteristics of hydroxyapatite (for example, microbe adsorption property). Disclosed is a functional nonwoven fabric in which sintered hydroxyapatite particles are fixed by thermal fusion bonding to a surface of a nonwoven fabric containing fibers, at least surfaces of the fibers being mainly composed of a thermoplastic resin, wherein a shearing rigidity of the functional nonwoven fabric is 8.5 gf/cm/degree or less.Type: ApplicationFiled: December 6, 2013Publication date: December 10, 2015Applicants: Japan Vilene Company, Ltd., Sofsera CorporationInventors: Yasuko Matsubayashi, Koichi Kato, Yasumichi Kogai, Hisashi Hattori, Karl Kazushige Kawabe
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Publication number: 20150273992Abstract: An object of the present invention is, even when the design of a weather strip body with a specific gravity of about 0.5 to 0.85 is improved using a nonwoven fabric, to provide a weather strip with excellent trackability and excellent adhesiveness between the weather strip body and the nonwoven fabric. The weather strip of the present invention comprises a weather strip body having a specific gravity of 0.5 to 0.85 and made of an ethylene-propylene copolymer rubber, an adhesive resin sheet comprising random polypropylene and a polypropylene-based thermoplastic elastomer, and a nonwoven fabric, said nonwoven fabric being attached to the weather strip body via the adhesive resin sheet.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Applicants: Japan Vilene Company, Ltd., Toyoda Gosei Co., Ltd.Inventors: Tatsuhiko TSUMURA, Hirofumi OTSUKA, Kazuhiro TAKAHASHI
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Patent number: 9023743Abstract: An inorganic fiber structure comprising inorganic nanofibers having an average fiber diameter of 3 ?m or less, in which an entirety including the inside thereof is adhered with an inorganic adhesive, and the porosity thereof is 90% or more, is disclosed.Type: GrantFiled: January 14, 2010Date of Patent: May 5, 2015Assignees: Japan Vilene Company, Ltd., Fukuoka Prefectural Government, Kyushu University, National University CorporationInventors: Rie Watanabe, Takashi Tarao, Masaaki Kawabe, Tetsu Yamaguchi, Shinji Sakai, Koei Kawakami
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Patent number: 8741489Abstract: Disclosed are a separator for lithium ion secondary batteries, having an inorganic layer formed from inorganic particles, characterized in that the inorganic particles have a particle diameter distribution in which the 50% cumulative particle diameter D50 is in the range of 100 nm to 500 nm, the 10% cumulative particle diameter D10 is 0.5D50 or more, and the 90% cumulative particle diameter D90 is 2D50 or less; a method for manufacturing the separator; and a lithium ion secondary battery using the separator. When the separator is used, there can be produced a lithium ion secondary battery in which a short circuit caused by contraction or melting can be definitely prevented, as well as the current density applied to the electrodes during charging and discharging is uniform so that charging and discharging can be efficiently achieved.Type: GrantFiled: September 11, 2009Date of Patent: June 3, 2014Assignee: Japan Vilene Company, Ltd.Inventors: Hiroshi Ohnishi, Te Hyon Cho, Yuka Kondo, Yoshikazu Miyata, Tatsuo Nakamura, Hiroaki Yamazaki, Masanao Tanaka
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Patent number: 8663809Abstract: A surface material substrate has one surface of a fiber substrate containing cellulosic fiber is bonded with an acrylic resin binder containing a flame retardant and a thermosetting resin, a fineness of fiber constituting the fiber substrate is 2.2 dtex or less, and a mass ratio of the acrylic resin to the thermosetting resin is 80:20 to 65:35. A surface material is provided with an adhesive layer containing a resin with a melting point of 200° C. or less on a surface of the fiber substrate of the surface material substrate opposite to a facing surface, which is bonded with the acrylic binder. In a molded body, the surface material is integrated with a substrate mat by heat molding via an adhesive layer. The surface material substrate simultaneously fulfills requirements of low weight and cost, design properties, flame retardancy, mold releasability, followability and trimming properties.Type: GrantFiled: March 11, 2011Date of Patent: March 4, 2014Assignee: Japan Vilene Company, Ltd.Inventors: Kazuhito Yoshikawa, Takashi Tokiwa
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Patent number: 8617751Abstract: A water control sheet having superior drainage and gas diffusion properties and superior handling characteristics, and a gas diffusion sheet, a membrane-electrode assembly and a polymer electrolyte fuel cell, which utilize the water control sheet, are provided. The water control sheet is independent and located for use adjacent to a catalyst layer of a polymer electrolyte fuel cell, and is formed of a nonwoven fabric containing conductive fibers containing conductive particles at least inside a hydrophobic organic resin. The gas diffusion sheet, the membrane-electrode assembly and the polymer electrolyte fuel cell according to the present invention have the above water control sheet.Type: GrantFiled: February 7, 2012Date of Patent: December 31, 2013Assignee: Japan Vilene Company, Ltd.Inventors: Tatsunori Ito, Manami Suzuki, Tatsuo Nakamura
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Patent number: 8562895Abstract: A process of manufacturing inorganic nanofibers, without using an organic polymer, using a highly reactive metal alkoxide such as titanium alkoxide or zirconium alkoxide, in particular, a process in which inorganic nanofibers can be stably produced over a long period, is provided. It is a process of manufacturing inorganic nanofibers by electrospinning using a sol solution containing an inorganic component as a main component, characterized in that the sol solution contains a metal alkoxide having a high reactivity and a salt catalyst, and that the salt catalyst is an amine compound having an N—N bond, an N—O bond, an N—C?N bond, or an N—C?S bond.Type: GrantFiled: December 23, 2009Date of Patent: October 22, 2013Assignees: Shinshu University, Japan Vilene Company, Ltd.Inventors: Yasushi Murakami, Hisanao Usami, Tomohiro Nishikawa, Takashi Tarao, Rie Watanabe, Masaaki Kawabe, Takashi Nishitani
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Patent number: 8546025Abstract: Disclosed is a lithium ion secondary battery, in which comprises a vinyl alcohol polymer or a derivative thereof in an amount of 0.3 mg or more per 1 mAh of battery capacity in terms of a vinyl alcohol unit moiety content. The lithium ion secondary battery can decrease the battery voltage under high-temperature conditions and cannot be recharged after being exposed to high-temperature conditions.Type: GrantFiled: August 21, 2008Date of Patent: October 1, 2013Assignees: Japan Vilene Company, Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Masanao Tanaka, Tatsuo Nakamura, Hiroshi Ohnishi, Yuka Kondo, Koji Kimura, Te Hyon Cho, Tetsuo Sakai
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Patent number: 8486554Abstract: An alkaline battery separator comprises a fused fiber layer, and a fine fiber layer adjacent to the fused fiber layer and comprising fine fibers and second fusible fibers, which are fused in the fine fiber layer, wherein part of the fine fibers are incorporated into the fused fiber layer, so that in determining a delamination strength between the fused fiber layer and the fine fiber layer, delamination occurs in the fine fiber layer and therefore the determination results in failure. A process for manufacturing the separator includes preparing a fused fiber sheet, preparing a slurry containing fine fibers and second fusible fibers, scooping up the slurry with the fused fiber sheet, to thereby incorporate part of the fine fibers into the fused fiber sheet, and fusing the second fusible fibers in the fused fiber sheet.Type: GrantFiled: September 27, 2007Date of Patent: July 16, 2013Assignee: Japan Vilene Company, Ltd.Inventors: Yasuhiro Ito, Yoshihiko Kondo, Masanao Tanaka
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Publication number: 20130047856Abstract: Provided is an electrically charged filter which has a high initial filtering efficiency and is not liable to decline in filtering efficiency, by including a liquid-charged nonwoven fabric layer that is charged by application of force via a polar liquid, and a tribo-electrically charged nonwoven fabric layer that is charged by friction between fiber components of a plurality of types.Type: ApplicationFiled: May 2, 2011Publication date: February 28, 2013Applicant: JAPAN VILENE COMPANY, LTD.Inventors: Masami Takeuchi, Yuichirou Takashima