Patents by Inventor Eiji Akiba
Eiji Akiba 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: 20210259231Abstract: The ambulatory insect pest-trapping device includes a contact portion at which one end of an adhesive sheet is connected to one end of a walkway sheet. Another end of the adhesive sheet is arranged apart from another end of the walkway sheet. A space for housing an ambulatory insect pest B is formed between the adhesive sheet and the walkway sheet, and an entrance is formed between the other end of the adhesive sheet and the other end of the walkway sheet. The device is formed into a tapered shape such that a distance between the adhesive sheet and the walkway sheet gradually decreases in a direction from the entrance toward the contact portion.Type: ApplicationFiled: June 28, 2019Publication date: August 26, 2021Applicant: KURARAY TRADING CO., LTD.Inventor: Eiji AKIBA
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Publication number: 20190116777Abstract: A mite-capturing sheet (1) includes an adhesive sheet (3) that captures mites and a resin sheet (4) placed on the adhesive sheet (3) and containing an attractant. The resin sheet (4) has a plurality of resin sheet openings (5) that expose the adhesive sheet (3).Type: ApplicationFiled: March 1, 2017Publication date: April 25, 2019Applicant: KURARAY TRADING CO., LTD.Inventor: Eiji AKIBA
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Publication number: 20180200984Abstract: A nonwoven fabric composite 1 includes: a multilayer and long-fiber nonwoven fabric (A) which is a laminate of nonwoven fabrics continuously obtained through spinning melted resin formable into fibers; and a yarn (B) formed of fibers different from the fibers forming the multilayer and long-fiber nonwoven fabric (A), and introduced in the multilayer and long-fiber nonwoven fabric (A) by in-line lamination. The fibers of the yarn (B) include electrically conductive fibers.Type: ApplicationFiled: July 12, 2016Publication date: July 19, 2018Applicants: KURARAY LIVING CO., LTD., FOSHAN NAHAI BEAUTIFUL NONWOVEN CO., LTD.Inventors: Eiji AKIBA, Weixiong DENG
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Patent number: 9885146Abstract: Electro-conductive fibers comprise synthetic fibers and an electro-conductive layer containing carbon nanotubes and covering a surface of the synthetic fibers, and the coverage of the electro-conductive layer relative to the whole surface of the synthetic fibers is not less than 60% (particularly not less than 90%). The electric resistance value of the electro-conductive fibers ranges from 1×10?2 to 1×1010 ?/cm, and the standard deviation of the logarithm of the electric resistance value is less than 1.0. The thickness of the electro-conductive layer ranges from 0.1 to 5 ?m, and the ratio of the carbon nanotubes may be 0.1 to 50 parts by mass relative to 100 parts by mass of the synthetic fibers. The electro-conductive layer may further contain a binder. The electro-conductive fibers may be produced by immersing the synthetic fibers in a dispersion with vibrating the synthetic fibers to form the electro-conductive layer adhered to the surface of the synthetic fibers.Type: GrantFiled: August 31, 2009Date of Patent: February 6, 2018Assignees: National University Corporation Hokkaido University, Mitsui & Co., Ltd., Kuraray Co., Ltd., Chakyu Dyeing Co., Ltd.Inventors: Bunshi Fugetsu, Eiji Akiba, Masaaki Hachiya
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Patent number: 9644091Abstract: The present invention provides a polymer composition including a first base polymer (A) containing at least a thermoplastic polymer, a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A), and an additive (C) containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B). (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces.Type: GrantFiled: July 16, 2013Date of Patent: May 9, 2017Assignees: Sanc Salaam Corporation, Kuraray Living Co., Ltd.Inventors: Yoshikatsu Mizukami, Eiji Akiba
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Patent number: 9035188Abstract: An electro-conductive multifilament yarn for an electro-conductive brush that includes an electro-conductive fiber containing a synthetic fiber and a carbon nanotube covering a surface of the fiber. The synthetic fiber may have a single-filament fineness of not more than 30 dtex. The synthetic fiber may have 3 to 6 elongated recesses or grooves extending in a longitudinal direction thereof and have a multi-leaves or cross-section.Type: GrantFiled: March 3, 2011Date of Patent: May 19, 2015Assignees: Kuraray Co., Ltd., Chakyu Dyeing Co., Ltd., Tsuchiya TSCO Co., Ltd., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Eiji Akiba, Masaaki Hachiya, Hidetaka Yamauchi, Bunshi Fugetsu
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Publication number: 20140342629Abstract: Provided is a composite fiber capable of forming a fabric giving a good wearing feeling to a human body. This composite fiber is composed of a polyurethane elastomer having a glass transition temperature of 15 to 50° C. as a component A, and a readily soluble thermoplastic polymer as a component B. In a cross section of the fiber, the component A constitutes a core, and the component B covers 70% or longer of the circumference of the component A. The component B may be, for example, a readily soluble polyester or thermoplastic polyvinyl alcohol-based polymer. The composite ratio (mass ratio) of the component A to the component B may be 90:10 to 40:60.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Applicant: KURARAY CO., LTD.Inventors: Hitoshi NAKATSUKA, Nobuhiro KOGA, Eiji AKIBA, Shunichi HAYASHI
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Publication number: 20130303043Abstract: The present invention provides a polymer composition including a first base polymer (A) containing at least a thermoplastic polymer, a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A), and an additive (C) containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B). (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces.Type: ApplicationFiled: July 16, 2013Publication date: November 14, 2013Inventors: Yoshikatsu MIZUKAMI, Eiji AKIBA
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Patent number: 8519033Abstract: The present invention provides a polymer composition including a first base polymer (A) containing at least a thermoplastic polymer, a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A), and an additive (C) containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B). (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces.Type: GrantFiled: February 23, 2009Date of Patent: August 27, 2013Assignees: Sanc Salaam Corporation, Kuraray Living Co., Ltd.Inventors: Yoshikatsu Mizukami, Eiji Akiba
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Patent number: 8378014Abstract: The polymer composition comprises a polymer and a liquid compound having poor compatibility with the polymer. When the liquid compound is caused to be held in the polymer in a high concentration, a block copolymer having in the molecule a copolymerized polymer block unit having high compatibility with both of the matrix polymer and the liquid compound is incorporated and dispersed. As a result, the block copolymer serves like a surfactant to form an interface and the liquid compound is enclosed inside the interface to thereby form a liquid-in-solid polymer type emulsion.Type: GrantFiled: July 12, 2006Date of Patent: February 19, 2013Assignee: Sanc Salaam CorporationInventors: Yoshikatsu Mizukami, Eiji Akiba
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Publication number: 20120315065Abstract: An electro-conductive multifilament yarn for forming an electro-conductive brush comprises an electro-conductive fiber containing a synthetic fiber and a carbon nanotube covering a surface of the fiber. The synthetic fiber may have a single-filament fineness of not more than 30 dtex. The synthetic fiber may have 3 to 6 elongated recesses or grooves extending in a longitudinal direction thereof and have a multi-leaves or star-shaped cross-section. The electro-conductive multifilament yarn of the present invention has a high electro-conductivity and may have an electric resistance value of 1×106 to 1×1011 ?/cm at 20° C. Further, the electro-conductivity has a high uniformity; the standard deviation of a logarithm of the electric resistance value may be not more than 1.0.Type: ApplicationFiled: March 3, 2011Publication date: December 13, 2012Applicants: Kurarayliving Co., Ltd., National University Corporation Hokkaido University, Tsuchiya TSCO Co., Ltd., Chakyu Dyeing Co., Ltd.Inventors: Eiji Akiba, Masaaki Hachiya, Hidetaka Yamauchi, Bunshi Fugetsu
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Patent number: 8178611Abstract: [Object] To provide a polymer composition composed of a functional liquid compound and a polymer, in which the functional liquid compound is phase-separated from but dispersed in the polymer, and a molded product of the polymer composition at lower prices.Type: GrantFiled: May 26, 2008Date of Patent: May 15, 2012Assignees: Sanc Salaam Corporation, Kuraray Living Co., Ltd.Inventors: Yoshikatsu Mizukami, Eiji Akiba
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Publication number: 20110151254Abstract: Electro-conductive fibers comprise synthetic fibers and an electro-conductive layer containing carbon nanotubes and covering a surface of the synthetic fibers, and the coverage of the electro-conductive layer relative to the whole surface of the synthetic fibers is not less than 60% (particularly not less than 90%). The electric resistance value of the electro-conductive fibers ranges from 1×10?2 to 1×1010 ?/cm, and the standard deviation of the logarithm of the electric resistance value is less than 1.0. The thickness of the electro-conductive layer ranges from 0.1 to 5 ?m, and the ratio of the carbon nanotubes may be 0.1 to 50 parts by mass relative to 100 parts by mass of the synthetic fibers. The electro-conductive layer may further contain a binder. The electro-conductive fibers may be produced by immersing the synthetic fibers in a dispersion with vibrating the synthetic fibers to form the electro-conductive layer adhered to the surface of the synthetic fibers.Type: ApplicationFiled: August 31, 2009Publication date: June 23, 2011Applicants: NATIONAL UNIVERSITY CORP. HOKKAIDO UNIVERSITY, KURARAYLIVING CO., LTD., MITSUI & CO., LTD.Inventors: Bunshi Fugetsu, Eiji Akiba, Masaaki Hachiya
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Publication number: 20100210764Abstract: [Object] To provide a polymer composition composed of a functional liquid compound and a polymer, in which the functional liquid compound is phase-separated from but dispersed in the polymer, and a molded product of the polymer composition at lower prices.Type: ApplicationFiled: May 26, 2008Publication date: August 19, 2010Applicants: SANC SALAAM CORPORATION, KURARAY LIVING CO., LTD.Inventors: Yoshikatsu Mizukami, Eiji Akiba
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Publication number: 20100175354Abstract: The present invention provides a polymer composition including a first base polymer (A) containing at least a thermoplastic polymer, a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A), and an additive (C) containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B). (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces.Type: ApplicationFiled: February 23, 2009Publication date: July 15, 2010Inventors: Yoshikatsu Mizukami, Eiji Akiba
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Publication number: 20090324863Abstract: The polymer composition comprises a polymer and a liquid compound having poor compatibility with the polymer. When the liquid compound is caused to be held in the polymer in a high concentration, a block copolymer having in the molecule a copolymerized polymer block unit having high compatibility with both of the matrix polymer and the liquid compound is incorporated and dispersed. As a result, the block copolymer serves like a surfactant to form an interface and the liquid compound is enclosed inside the interface to thereby form a liquid-in-solid polymer type emulsion.Type: ApplicationFiled: September 2, 2009Publication date: December 31, 2009Applicants: SANC SALAAM CORPORATION, KURARAY LIVING CO., LTD.Inventors: Yoshikatsu MIZUKAMI, Eiji AKIBA
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Publication number: 20090258973Abstract: The polymer composition comprises a polymer and a liquid compound having poor compatibility with the polymer. When the liquid compound is caused to be held in the polymer in a high concentration, a block copolymer having in the molecule a copolymerized polymer block unit having high compatibility with both of the matrix polymer and the liquid compound is incorporated and dispersed. As a result, the block copolymer serves like a surfactant to form an interface and the liquid compound is enclosed inside the interface to thereby form a liquid-in-solid polymer type emulsion.Type: ApplicationFiled: July 12, 2006Publication date: October 15, 2009Applicants: SANC SALAAM CORPORATION, KURARAY LIVING CO., LTD.Inventors: Yoshikatsu Mizukami, Eiji Akiba
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Publication number: 20040229540Abstract: A dustproof clothing comprises a fabric, and at least part of the fabric comprises a dustproof fiber containing a photocatalyst and a dust-collecting agent. The dust-collecting agent may comprise a quadrivalent metal phosphate and a bivalent metal hydroxide. The photocatalyst may comprise an optical semiconductor (e.g., an oxide semiconductor such as titanium dioxide). In the dustproof fiber, the proportion of the photocatalyst may be about 0.1 to 25 parts by weight relative to 100 parts by weight of the dustproof fiber, and the proportion of the dust-collecting agent may be about 1 to 25 parts by weight relative to 100 parts by weight of the dustproof fiber. Since the dust collection efficiency of the fabric in the dustproof clothing is not less than 70% and the air permeability of the fabric is about 8 to 100 cm/second, the dustproof clothing is suited to a clothing for a clean room.Type: ApplicationFiled: April 28, 2004Publication date: November 18, 2004Applicant: KURARAY CO. LTD.Inventors: Eiji Akiba, Teruo Hori
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Patent number: 5407735Abstract: Provided is a sheath-core composite polyester fiber with both the core and the sheath comprising polyesters and at least one end thereof is tapered to its tip. Two groups of recesses having different diameter ranges are formed on the exposed core of the tapered part and on the surface of the sheath, respectively. Napped fabrics with raised fibers comprising the composite fibers have good hand with stiffness (KOSHI), excellent color developing property and color depth when dyed. The fabrics have no luster difference or color difference such as dark fading and white appearance and, besides, produce no whitened seams, so that they are suitable for car-seat covers and like uses.Type: GrantFiled: October 13, 1993Date of Patent: April 18, 1995Assignee: Kuraray Co., Ltd.Inventors: Keiji Fukuda, Eiji Akiba, Takao Akagi