Patents by Inventor Takeshi Yanagida
Takeshi Yanagida 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: 11169071Abstract: In a method for analyzing samples involving the use of a device for analyzing samples, the device for analyzing samples includes at least a movement part through which a sample moves, and a measurement unit that is formed in a middle of the movement part and that measures a value of an ion current when the sample passes through the movement part. The analysis method includes at least a measurement step for measuring the value of the ion current when the sample passes through the movement part, and a determination step for determining a change over time in a quantity of ions from the value of the ion current measured in the measurement step. The quantity of ions includes a quantity of ions that have leaked from the sample during movement of the sample through the movement part.Type: GrantFiled: October 4, 2017Date of Patent: November 9, 2021Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, OSAKA UNIVERSITY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hirotoshi Yasaki, Takao Yasui, Noritada Kaji, Yoshinobu Baba, Tomoji Kawai, Satoyuki Kawano, Kentaro Doi, Takeshi Yanagida, Mao Fukuyama
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Patent number: 10830685Abstract: Provided is a device for electrical measurement designed to be able to perform high sensitivity detection by reading not only changes in steady-state current, but also the occurrence of transient current, and an electrical measurement apparatus including the device for electrical measurement. The device for electrical measurement includes a substrate on which are formed at least a sample separation channel and a sample migration channel, as well as a sample measuring unit, with one end of the sample separation channel formed to connect to one end of the sample migration channel, and the sample measuring unit including a first measuring unit connected to the sample migration channel, and a second measuring unit connected to the sample migration channel from the reverse side to the first measuring unit.Type: GrantFiled: April 6, 2016Date of Patent: November 10, 2020Assignee: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Yoshinobu Baba, Noritada Kaji, Takao Yasui, Tomoji Kawai, Takeshi Yanagida
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Publication number: 20200096490Abstract: A method for analyzing a gas includes: allowing a sample gas to be adsorbed by each of a plurality of adsorbents (70) respectively having compositions that are different from each other; allowing the sample gas to be desorbed individually from the adsorbents (70) while detecting individually the sample gas desorbed from each of the adsorbents (70) so as to acquire desorption profiles of the sample gas that are respectively unique to the adsorbents (70); and identifying the sample gas by using a group of the desorption profiles. The acquiring of the desorption profiles is carried out by detecting, individually and over time, the sample gas desorbed from each of the adsorbents (70). Each of the desorption profiles is, for example, an overtime data created from a detection signal reflecting a quantity of the sample gas.Type: ApplicationFiled: April 20, 2018Publication date: March 26, 2020Inventors: Yosuke HANAI, Atsuo NAKAO, Takeshi YANAGIDA, Kazuki NAGASHIMA
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Publication number: 20200033248Abstract: In a method for analyzing samples involving the use of a device for analyzing samples, the device for analyzing samples includes at least a movement part through which a sample moves, and a measurement unit that is formed in a middle of the movement part and that measures a value of an ion current when the sample passes through the movement part. The analysis method includes at least a measurement step for measuring the value of the ion current when the sample passes through the movement part, and a determination step for determining a change over time in a quantity of ions from the value of the ion current measured in the measurement step. The quantity of ions includes a quantity of ions that have leaked from the sample during movement of the sample through the movement part.Type: ApplicationFiled: October 4, 2017Publication date: January 30, 2020Inventors: Hirotoshi YASAKI, Takao YASUI, Noritada KAJI, Yoshinobu BABA, Tomoji KAWAI, Satoyuki KAWANO, Kentaro DOI, Takeshi YANAGIDA, Mao FUKUYAMA
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Patent number: 10533967Abstract: An object is to provide an electrophoretic support body and an electrophoretic device which allow a potential of hydrogen (pH) to be easily and reproducibly adjusted. The electrophoretic support body in the present disclosure is an electrophoretic support body including a plurality of fibers, the plurality of fibers form a fibrous body having a void in the fibrous body, and the plurality of fibers include a metal oxide having a predetermined isoelectric point. The electrophoretic device in the present disclosure includes a container, a pair of first electrodes provided in the container, and a first electrophoretic support body disposed between the pair of first electrodes, the first electrophoretic support body includes a fibrous body that is formed of a plurality of fibers and has a void in the fibrous body, and the plurality of fibers include a metal oxide having a predetermined isoelectric point.Type: GrantFiled: March 25, 2016Date of Patent: January 14, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroaki Oka, Takeshi Yanagida, Nobuhiro Hayashi
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Publication number: 20180100792Abstract: Provided is a device for electrical measurement designed to be able to perform high sensitivity detection by reading not only changes in steady-state current, but also the occurrence of transient current, and an electrical measurement apparatus including the device for electrical measurement. The device for electrical measurement includes a substrate on which are formed at least a sample separation channel and a sample migration channel, as well as a sample measuring unit, with one end of the sample separation channel formed to connect to one end of the sample migration channel, and the sample measuring unit including a first measuring unit connected to the sample migration channel, and a second measuring unit connected to the sample migration channel from the reverse side to the first measuring unit.Type: ApplicationFiled: April 6, 2016Publication date: April 12, 2018Inventors: Yoshinobu BABA, Noritada KAJI, Takao YASUI, Tomoji KAWAI, Takeshi YANAGIDA
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Publication number: 20180074014Abstract: An object is to provide an electrophoretic support body and an electrophoretic device which allow a potential of hydrogen (pH) to be easily and reproducibly adjusted. The electrophoretic support body in the present disclosure is an electrophoretic support body including a plurality of fibers, the plurality of fibers form a fibrous body having a void in the fibrous body, and the plurality of fibers include a metal oxide having a predetermined isoelectric point. The electrophoretic device in the present disclosure includes a container, a pair of first electrodes provided in the container, and a first electrophoretic support body disposed between the pair of first electrodes, the first electrophoretic support body includes a fibrous body that is formed of a plurality of fibers and has a void in the fibrous body, and the plurality of fibers include a metal oxide having a predetermined isoelectric point.Type: ApplicationFiled: March 25, 2016Publication date: March 15, 2018Inventors: HIROAKI OKA, TAKESHI YANAGIDA, NOBUHIRO HAYASHI
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Publication number: 20170212069Abstract: A chemical substance concentrator is configured to concentrate a chemical substance in a gaseous object. The chemical substance concentrator includes a channel in which a gaseous object flows, an adsorbent being conductive and configured to adsorb the chemical substance, and a pair of electrodes configured to cause a current to flow in the adsorbent.Type: ApplicationFiled: November 16, 2015Publication date: July 27, 2017Inventors: ATSUO NAKAO, HIROAKI OKA, TAKESHI YANAGIDA
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Patent number: 8034755Abstract: The present invention provides an oil-in-water emulsified composition comprising fatty acid soap, the following ingredients (2)-(5) and (6) water. (2) Polyethylene glycol having an average molecular weight of 2000-25000 in the amount of 0.3-4.0 wt % of the composition, (3) One, two, or more of nonionic surfactants having a HLB of 10-17 in the amount of 0.1-5.0 wt %, (4) one, two, or more of nonionic surfactants having a HLB of 2-10 in the amount of 0.1-5.0 wt % of the composition, and (5) an oil ingredient comprising a solid or semisolid oil ingredient in the amount of 40-70 wt % of the composition. The object of the present invention is to provide an oil-in-water emulsified composition primarily or secondarily aiming at removing dirt that exhibits no stickiness, superior stability, and richness.Type: GrantFiled: March 21, 2008Date of Patent: October 11, 2011Assignee: Shiseido Company, Ltd.Inventors: Sayoko Kawano, Yukiko Kamiya, Takeshi Yanagida
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Publication number: 20100048442Abstract: The present invention provides an oil-in-water emulsified composition comprising fatty acid soap, the following ingredients (2)-(5) and (6) water. (2) Polyethylene glycol having an average molecular weight of 2000-25000 in the amount of 0.3-4.0 wt % of the composition, (3) One, two, or more of nonionic surfactants having a HLB of 10-17 in the amount of 0.1-5.0 wt %, (4) one, two, or more of nonionic surfactants having a HLB of 2-10 in the amount of 0.1-5.0 wt % of the composition, and (5) an oil ingredient comprising a solid or semisolid oil ingredient in the amount of 40-70 wt % of the composition. The object of the present invention is to provide an oil-in-water emulsified composition primarily or secondarily aiming at removing dirt that exhibits no stickiness, superior stability, and richness.Type: ApplicationFiled: March 21, 2008Publication date: February 25, 2010Applicant: SHISEIDO COMPANY, LTD.Inventors: Sayoko Kawano, Yukiko Kamiya, Takeshi Yanagida
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Patent number: 6024941Abstract: An external skin treatment composition containing (I) vitamin A (retinol) and (II) as a stabilizer, a chelating agent/a polysaccharide, an oil, polyethylene (propylene) glycol, a hydroxy carboxylate, a neutral amino acid salt, an oil-soluble antioxidant/EDTA/a benzophenone compound, an oil-soluble antioxidant/an acid/a benzophenone compound, an inclusion compound of cyclodextrin including an antioxidant and/or an ultraviolet absorber, butanediol and/or an oil-soluble antioxidant, a water-soluble benzophenone compound, a basic amino acid and the salt thereof, an acidic amino acid and the salt thereof, a polar oil, a water-swellable clay mineral.Type: GrantFiled: April 27, 1995Date of Patent: February 15, 2000Assignee: Shiseido Company, Ltd.Inventors: Takeshi Yanagida, Okihiko Sakamoto
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Patent number: 5962000Abstract: An external skin treatment composition comprising (i) vitamin A and (ii) at least one skin roughening improvement aid selected from the group consisting of (a) polyoxyalkylene modified organopolysiloxanes, (b) sugars, and (c) anti-inflammatory agents.Type: GrantFiled: December 14, 1998Date of Patent: October 5, 1999Assignee: Shiseido Company, Ltd.Inventors: Takeshi Yanagida, Sakamoto Okihiko
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Patent number: 5859069Abstract: A gelatinous external skin treatment composition comprising (1) spherical powder of organopolysiloxane elastomer having an average particle size of 1.0 to 15.0 .mu.m, (2) silicone oil and (3) polyether modified silicone having the formula (I): ##STR1## wherein A represents a methyl group, phenyl group, or B explained below, B is a polyoxyalkylene group having the formula:--C.sub.3 H.sub.6 O(C.sub.2 H.sub.4 O).sub.a (C.sub.3 H.sub.6 O).sub.b R',wherein R' is a group selected from the group consisting of a hydrogen atom, acyl group, and C.sub.1 to C.sub.4 alkyl groups, a is an integer of 5 to 50, and b is an integer of 5 to 50,R is a methyl group or phenyl group, m is an integer of 50 to 1000, and n is an integer of 0 to 40, provided that at least one polyoxyalkylene group is present in the molecule, and optionally (4) a lower alcohol having 3 carbon atoms or less and/or water.Type: GrantFiled: October 3, 1997Date of Patent: January 12, 1999Assignee: Shiseido Company, Ltd.Inventor: Takeshi Yanagida
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Patent number: 5798109Abstract: An external skin treatment composition comprising (a) vitamin A and (b) (i) at least one kind of powder or (ii) at least one silicone oil selected from the group consisting of dimethyl polysiloxane and methylphenyl polysiloxane having a viscosity of 2-20 cs at 25.degree. C.Type: GrantFiled: August 20, 1996Date of Patent: August 25, 1998Assignee: Shiseido Company, Ltd.Inventors: Takeshi Yanagida, Okihiko Sakamoto
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Patent number: 5686086Abstract: An external skin treatment composition comprising (i) vitamin A and (ii) at least one skin roughening improvement aid selected from the group consisting of (a) polyoxyalkylene modified organopolysiloxanes, (b) sugars, and (c) anti-inflammatory agents.Type: GrantFiled: March 18, 1996Date of Patent: November 11, 1997Assignee: Shiseido Co., Ltd.Inventors: Takeshi Yanagida, Sakamoto Okihiko
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Patent number: 5484816Abstract: An external skin treatment composition containing (I) vitamin A (retinol) and (II) as a stabilizer, a chelating agent/a polysaccharide, an oil, polyethylene (propylene) glycol, a hydroxy carboxylate, a neutral amino acid salt, an oil-soluble antioxidant/EDTA/a benzophenone compound, an oil-soluble antioxidant/an acid/a benzophenone compound, an inclusion compound of cyclodextrin including an antioxidant and/or an ultraviolet absorber, butanediol and/or an oil-soluble antioxidant, a water-soluble benzophenone compound, a basic amino acid and the salt thereof, an acidic amino acid and the salt thereof, a polar oil, a water-swellable clay mineral.Type: GrantFiled: March 10, 1994Date of Patent: January 16, 1996Assignee: Shiseido Company, Ltd.Inventors: Takeshi Yanagida, Okihiko Sakamoto