Patents by Inventor Hidemi Ito
Hidemi Ito 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: 11801660Abstract: A laminated acoustic absorption member that includes at least a first fiber layer and a second fiber layer, as well as at least one substrate layer present between the first fiber layer and the second fiber layer, wherein: the first fiber layer has an average flow pore diameter of 0.5-10 ?m and a basis weight of 0.1-200 g/m2; the second fiber layer has an average flow pore diameter of 0.5-10 ?m, the average flow pore diameter of the second fiber layer being equal to or less than that of the first fiber layer, and also has a basis weight of 0.1-200 g/m2; the substrate layer has an air permeability of 40 cc/cm2·s or greater as measured by the Frazier method, and a basis weight of 1-700 g/m2; and the first fiber layer and the second fiber layer are disposed on a sound-incidence side and a sound-transmission side, respectively.Type: GrantFiled: February 26, 2019Date of Patent: October 31, 2023Assignees: JNC CORPORATION, JNC FIBERS CORPORATIONInventors: Takayuki Hattori, Hidemi Ito
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Publication number: 20220410525Abstract: A sound-absorbing material has an excellent sound absorbing property in a low-frequency range, an intermediate-frequency range, and a high-frequency range. The sound-absorbing material is a laminated sound-absorbing material, which includes at least one first layer, and at least one second layer that differs from the first layer. The first layer has a mean flow pore diameter of 2.0 to 60 ?m and an air permeability according to the Frazier method of 30 to 200 cc/cm2·s. The second layer is a layer including at least one kind selected from a foamed resin, a nonwoven fabric and a woven fabric, has a thickness of 3 to 40 mm, and has a density that is lower than the first layer and is 51 to 150 kg/m3. The first layer is disposed on a sound incidence side of the second layer.Type: ApplicationFiled: March 16, 2020Publication date: December 29, 2022Applicants: JNC CORPORATION, JNC FIBERS CORPORATIONInventors: Takayuki HATTORI, Hidemi ITO
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Publication number: 20220176283Abstract: Provided are: a filter medium with high dust collection efficiency, low pressure loss, and a long lifespan; and a filter material used for the filter medium. This composite structure includes ultrafine fibers having a fiber diameter of less than 500 nm, and beads. The outermost surface of the composite structure has at least 500/mm2 of beads with a diameter of 5 ?m or more. The ultrafine fibers and the beads preferably have the same component.Type: ApplicationFiled: March 11, 2020Publication date: June 9, 2022Applicants: JNC CORPORATION, JNC FIBERS CORPORATIONInventors: You UMEBAYASHI, Shimpei HIRAMOTO, Hidemi ITO
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Publication number: 20220165243Abstract: The present invention addresses the problem of providing a sound absorbing material which exhibits excellent sound absorbing performance in low-frequency and intermediate-frequency ranges, and preferably also in higher-frequency ranges. This laminated sound absorbing material includes at least: a fiber layer; and a porous layer, wherein the fiber layer has a mean flow pore size of 1.0-60 ?m and an air permeability as measured with a Frazier method of 30-220 cc/cm2·s, and the porous layer comprises at least one selected from the group consisting of foamed resins, unwoven fabrics, and woven fabrics, has a thickness of 3-40 mm and a density of 3-50 kg/m3 which is lower than that of the fiber layer, and is disposed such that the fiber layer is on a sound incidence side.Type: ApplicationFiled: September 5, 2019Publication date: May 26, 2022Applicants: JNC CORPORATION, JNC FIBERS CORPORATIONInventors: Takayuki HATTORI, Hidemi ITO
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Publication number: 20210245469Abstract: A laminate sound-absorbing material that includes a porous layer and a base material layer. The porous layer is a fiber layer or comprises a microporous film. The mean flow pore diameter of the porous layer is 0.1-30 ?m. The basis weight of the porous layer is 0.1-200 g/m2. The average sound transmission loss of the base material layer between 1,000 Hz and 12,500 Hz is at least 2 dB. The base material layer is arranged on a sound incidence side, and the porous layer is arranged on a sound transmission side.Type: ApplicationFiled: July 24, 2019Publication date: August 12, 2021Applicants: JNC CORPORATION, JNC FIBERS CORPORATIONInventors: Takayuki HATTORI, Hidemi ITO
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Publication number: 20210094258Abstract: A laminated acoustic absorption member that includes at least a first fiber layer and a second fiber layer, as well as at least one substrate layer present between the first fiber layer and the second fiber layer, wherein: the first fiber layer has an average flow pore diameter of 0.5-10 ?m and a basis weight of 0.1-200 g/m2; the second fiber layer has an average flow pore diameter of 0.5-10 ?m, the average flow pore diameter of the second fiber layer being equal to or less than that of the first fiber layer, and also has a basis weight of 0.1-200 g/m2; the substrate layer has an air permeability of 40 cc/cm2·s or greater as measured by the Frazier method, and a basis weight of 1-700 g/m2; and the first fiber layer and the second fiber layer are disposed on a sound-incidence side and a sound-transmission side, respectively.Type: ApplicationFiled: February 26, 2019Publication date: April 1, 2021Applicants: JNC CORPORATION, JNC FIBERS CORPORATIONInventors: Takayuki HATTORI, Hidemi ITO
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Patent number: 7956287Abstract: A touch panel-use transparent conductive molded product having a conductive layer excellent in wear resistance and flexing resistance, small in surface resistivity change when the touch panel is in use, and free from a change in transmitted light hue, and a touch panel using it. The touch panel-use transparent conductive molded product comprises a fine-conductive-fibers (4)-containing, transparent conductive layer (12) formed on at least one surface of a transparent substrate (11), and the touch panel uses the above transparent conductive molded product as an electrode. The fine conductive fibers in the transparent conductive layer (12) are dispersed without being aggregated, and touch each other while being dispersed with each of them separated from each other or each bundle of several fibers separated from each other. Therefore, it is possible to control a surface resistivity to 104?/? or smaller, and a conductive layer light beam transmittance at a wavelength of 550 nm to 75% or larger.Type: GrantFiled: April 19, 2005Date of Patent: June 7, 2011Assignee: Takiron Co., Ltd.Inventors: Ryuji Takayama, Hidemi Ito, Hitoshi Masago, Junichi Nakanishi
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Publication number: 20100086745Abstract: A composite spunbond nonwoven and a laminate using the same are provided. The composite spunbond nonwoven is formed of a composite fiber including a low melting point component and a high melting point component. The composite fiber is partially thermal compression bonded to each other, and thermal compression bonded portions have fine folded structures formed by repeating convex portions and concave portions in a CD (cross direction in nonwoven manufacturing). An average of distances between adjacent convex portions of the folded structures is in a range of 100 ?m-400 ?m. The composite spunbond nonwoven exhibits an elongation property by unfolding the fine folded structures. When the composite spunbond nonwoven is elongated by 5%, a CD strength is less than or equal to 0.1 N/5 cm width, and a MD/CD strength ratio is greater than or equal to 200. MD is longitudinal direction in nonwoven manufacturing.Type: ApplicationFiled: October 8, 2009Publication date: April 8, 2010Applicants: CHISSO CORPORATION, CHISSO POLYPRO FIBER CO., LTD.Inventors: HIDEMI ITO, TAIJU TERAKAWA
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Publication number: 20080029292Abstract: There are provided a transparent conductive formed article for a touch panel, having a conductive layer which is excellent in abrasion resistance and elasticity, shows little change in surface resistivity at the time of the use of a touch panel, and does not change hues of the transmitting light, and a touch panel that use the same. The transparent conductive formed article for a touch panel is prepared by forming a transparent conductive layer 12 comprising ultra fine conductive fibers 4 on at least one side of a transparent substrate 11, and the touch panel is prepared using the aforementioned transparent conductive formed article as an electrode. The ultra fine conductive fibers of the transparent conductive layer 12 are dispersed without aggregation and dispersed and contacted with one another in a state in which said fibers are separated one by one or in a state in which a bundle formed by the gathering of two or more fibers is separated from other bundles.Type: ApplicationFiled: April 19, 2005Publication date: February 7, 2008Inventors: Ryuji Takayama, Hidemi Ito, Hitoshi Masago, Junichi Nakanishi
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Publication number: 20070116916Abstract: A subject for the invention is to provide an electromagnetic-shielding light-diffusing sheet which has satisfactory electromagnetic shielding performance, attains a large transmitted-light amount, and can emit even diffused light having reduced unevenness of luminance. The invention relates to an electromagnetic-shielding light-diffusing sheet comprising a light-diffusing sheet main body and, laminated on at least one side thereof, a light-transmitting electroconductive layer having a surface resistivity of 105 ?/? or lower.Type: ApplicationFiled: April 28, 2004Publication date: May 24, 2007Inventors: Hidemi Ito, Masato Sakai, Koichi Se
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Publication number: 20070065651Abstract: A conductive article includes a substrate and a conductive layer that is formed on the surface of the substrate and contains fine conductive fibers that are dispersed in the conductive layer. One end of the fibers is fixed to the substrate and other end of the fibers protrude from the top surface of the conductive layer. Alternatively, a middle portion of the fibers may protrude from the top surface or fixed to the substrate. Even though the fibers are dispersed well enough to avoid the aggregation of the fibers, portions of the fibers are located close to each other enough to provide electrical contact.Type: ApplicationFiled: January 29, 2004Publication date: March 22, 2007Inventors: Paul Glatkowski, Joseph Piche, Masato Sakai, Hidemi Ito
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Publication number: 20060257638Abstract: A conductive article includes a substrate made of a thermoplastic resin, and a transparent and conductive layer comprising carbon nanotubes and formed on at least one face of the substrate. The carbon nanotubes are electrical in contact with each other and dispersed so that each of the carbon nanotubes is separated form other carbon nanotubes, or that each of bundles of the carbon nanotubes is separated from other bundles.Type: ApplicationFiled: January 29, 2004Publication date: November 16, 2006Inventors: Paul Glatkowski, Joseph Piche, Masato Sakai, Hidemi Ito
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Patent number: 5981068Abstract: Modified polyolefin fibers capable of easily producing a non-woven fabric having a high strength and a superior feeling, and provided with a broad range of processing temperature and further a low temperature adhesiveness and suitable to heating roll processing, and a non-woven fabric using the same are provided,which fibers are obtained by adhering 0.1 to 1.0% by weight of an oiling agent composed mainly of a dibasic acid ester and/or a fatty acid ester, to polyolefin fibers having an index of birefringence of 0.054 or less, and which non-woven fabric has a strength of 0.85 or higher (Kg/5 cm) at 134.degree. C. and a processing temperature width of 132.degree. to 138.degree. C.Type: GrantFiled: March 26, 1997Date of Patent: November 9, 1999Assignee: Chisso CorporationInventors: Yoshimi Tsujiyama, Masahiko Taniguchi, Hidemi Ito, Masahito Katsuya
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Patent number: 5910362Abstract: Polyolefin fibers are disclosed having a surface portion of a low-orientation domain and an inner portion of a high-orientation domain, the orientation parameter, as measured by the Raman spectroscopy, of the low orientation domain is smaller than that of the high orientation domain by 2.2 or more, but less than 8.0. By using the polyolefin fibers, non-woven fabrics having a high strength and excellent hand feeling can be provided. Further, since the fibers can be processed into nonwoven fabrics at a wide range of processing temperature when a point bonding method is used, non-woven fabrics having stabilized qualities can be prepared.Type: GrantFiled: September 30, 1997Date of Patent: June 8, 1999Assignee: Chisso CorporationInventors: Kazuhiko Aratake, Masahiko Taniguchi, Hidemi Ito
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Patent number: 5906890Abstract: There is disclosed a polypropylene fiber which is suitable for hot rolling and which is used for producing a non-woven fabric having high tenacity and good feel by heat rolling within a wide range of processing temperatures.A polypropylene fiber contains boiling n-heptane extract in the amount of 1.5 to 5 percent by weight after extraction with boiling n-hexane, and the extract has a melting point peak of 140.degree. C. or higher.Type: GrantFiled: August 14, 1997Date of Patent: May 25, 1999Assignee: Chisso CorporationInventors: Masahiko Taniguchi, Hidemi Ito, Yoshimi Tsujiyama
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Patent number: 5750256Abstract: A water-repellent fiber having adhered to the fiber surface of a thermoplastic resin, which is a fiber a textile oil in the amount of 0.1-0.8% by weight of the fiber comprising ingredients of the following (A), (B) and (C) wherein the textile oil comprises:(A) 5-15% by weight of at least one alkylsulfonate,(B) 5-45% by weight of at least one compound selected from polyol esters and aliphatic acid alkanol amides, and(C) 40-90% by weight of at least one compound selected from dibasic acid esters and polyethylene glycol esters.Type: GrantFiled: April 9, 1996Date of Patent: May 12, 1998Assignee: Chisso CorporationInventors: Hidemi Ito, Masahiko Taniguchi, Yoshimi Tsujiyama, Masahito Katsuya