Patents by Inventor Shu Yamaguchi
Shu Yamaguchi 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: 10113214Abstract: The present invention provides an alkali metal and/or alkali earth metal extraction method that has excellent extraction efficiency and allows repeated use of an aqueous solution that extracts an alkali metal and/or alkali earth metal from a solid. The alkali metal and/or alkali earth metal extraction method is a method for extracting an alkali metal and/or alkali earth metal from a solid containing the alkali metal and/or alkali earth metal, the method including an elution step in which the solid is added to a neutral amino acid-containing aqueous solution or an amino acid-containing mixed aqueous solution produced by mixing a pH adjusting agent with an aqueous solution containing at least one of a neutral amino acid, an acidic amino acid and a basic amino acid so as to elute the alkali metal and/or alkali earth metal in the neutral amino acid-containing aqueous solution or the amino acid-containing mixed aqueous solution.Type: GrantFiled: July 4, 2013Date of Patent: October 30, 2018Assignees: AISIN SEIKI KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYOInventors: Yoshiki Wakimoto, Satoshi Fujii, Yukinori Ryonaga, Kiichiro Amano, Toshiya Kojima, Shu Yamaguchi, Shogo Miyoshi
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Publication number: 20150167118Abstract: The present invention provides an alkali metal and/or alkali earth metal extraction method that has excellent extraction efficiency and allows repeated use of an aqueous solution that extracts an alkali metal and/or alkali earth metal from a solid. The alkali metal and/or alkali earth metal extraction method is a method for extracting an alkali metal and/or alkali earth metal from a solid containing the alkali metal and/or alkali earth metal, the method including an elution step in which the solid is added to a neutral amino acid-containing aqueous solution or an amino acid-containing mixed aqueous solution produced by mixing a pH adjusting agent with an aqueous solution containing at least one of a neutral amino acid, an acidic amino acid and a basic amino acid so as to elute the alkali metal and/or alkali earth metal in the neutral amino acid-containing aqueous solution or the amino acid-containing mixed aqueous solution.Type: ApplicationFiled: July 4, 2013Publication date: June 18, 2015Applicants: AISIN SEIKI KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYOInventors: Yoshiki Wakimoto, Satoshi Fujii, Yukinori Ryonaga, Kiichiro Amano, Toshiya Kojima, Shu Yamaguchi, Shogo Miyoshi
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Publication number: 20140154613Abstract: An air electrode catalyst material according to an embodiment of the present invention is used in solid oxide fuel cells and includes a perovskite oxide represented by a general formula (1): AxByO3-6. A ratio x/y of the A to the B is 1.05?x/y?1.5, and a peak derived from a perovskite structure A1B1O3-? is shown in a chart obtained by an X-ray diffraction measurement, and in Raman spectra, an area of absorption peak existing between 560 cm?1 and 620 cm?1 (inclusive) is larger than that between 380 cm?1 and 440 cm?1 (inclusive).Type: ApplicationFiled: May 31, 2013Publication date: June 5, 2014Inventors: YASUSHI SATO, TAKAO KUDO, KOICHI YAMAMURO, SHU YAMAGUCHI, SHOGO MIYOSHI, AYANO TAKESHITA
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Publication number: 20070161538Abstract: A method of improving smoothness of an item to be washed during washing, including the step of washing the item with a washing liquid under conditions where an organic polymer having spinnability is present in the washing liquid; a process for hand-washing including the step of hand-washing an item to be washed with a washing liquid showing spinnability containing an organic polymer having spinnability, or a washing liquid prepared by diluting the washing liquid with more than 1-fold to 1,000-fold amount of water; a detergent composition containing an organic polymer having spinnability having an average molecular weight of 1,500,000 or more in an amount exceeding 0.1% by weight of the detergent composition; a laundry detergent composition comprising a polymer having an average molecular weight of 500,000 or more, wherein 60% by mole or more of constituting monomers has a sulfonic acid group or a salt form thereof, or a sulfuric acid group or a salt form thereof.Type: ApplicationFiled: February 10, 2005Publication date: July 12, 2007Applicant: Kao CorporationInventors: Yuki Yanagisawa, Katsuhiko Kasai, Yoshinobu Imaizumi, Hiroaki Warita, Kazuo Oki, Osamu Takiguchi, Takuya Masuda, Shu Yamaguchi
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Patent number: 7115548Abstract: A high-density detergent composition comprises 10 to 60% by weight of a surfactant composition having a weight ratio of an anionic surfactant to a nonionic surfactant of 4:10 or more and 10:0 or less, wherein the high-density detergent composition has a bulk density of from 600 to 1200 g/L, and has a total summation of a product of a mass base frequency Wi and a dissolving rate Vi of each group of classified granules obtained by classifying detergent granules by using a classifier, which satisfies the following formula: ?(Wi·Vi)?95(%), and wherein a mass base frequency of the classified granules having a size of less than 125 ?m is 0.1 or less, wherein the classifier comprises sieves each having a sieve-opening 2000 ?m, 1410 ?m, 1000 ?m, 710 ?m, 500 ?m, 355 ?m, 250 ?m, 180 ?m, and 125 ?m, and a receiver.Type: GrantFiled: January 14, 2000Date of Patent: October 3, 2006Assignee: Kao CorporationInventors: Shu Yamaguchi, Hideichi Nitta, Kyoko Okada, Kimihiro Mizusawa, Jun Kozuka, Toshiharu Noguchi, Hiroyuki Yamashita
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Patent number: 7067469Abstract: A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard water having 71.2 mg CaCO3/L, wherein a molar ratio of Ca/Mg is 7/3, and stirred with a stirring bar of 35 mm in length and 8 mm in diameter at a rotational speed of 800 rpm; and filtered with a standard sieve having a sieve-opening of 74 ?m as defined by JIS Z 8801, wherein the dissolution rate of the particles is calculated by the Equation (1): Dissolution Rate (%)=[1?(T/S)]×100,??(1) wherein S is a weight (g) of the particles supplied; and T is a dry weight (g) of insoluble remnants of the particles remaining on the sieve when an aqueous solution prepared under the above stirring conditions is filtered with the sieve.Type: GrantFiled: September 15, 2003Date of Patent: June 27, 2006Assignee: Kao CorporationInventors: Yuhki Yanagisawa, Nobuyoshi Yamaguchi, Shu Yamaguchi, Hitoshi Takaya, Hiroyuki Yamashita
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Publication number: 20050272629Abstract: A detergent particle comprising a base detergent particle, a base layer comprising a fine powder, prepared by treating a surface of the base detergent particle with a fine powder dispersion, in which a fine powder is dispersed in a binder, wherein the base layer is formed on the surface of the base detergent particle, and a surface coating comprising a surface modifier, which is formed on the base layer; a process for preparing a detergent particle, comprising the steps of treating a surface of a base detergent particle with a fine powder dispersion in which the fine powder is dispersed in a binder as a dispersion medium to form a base layer on the surface of the base detergent particle; and surface-coating the base layer with a surface modifier; and a fine powder dispersion for forming a base layer comprising a binder and a fine powder, wherein the fine powder is dispersed in the binder.Type: ApplicationFiled: August 13, 2003Publication date: December 8, 2005Inventors: Motomitsu Hasumi, Toshiki Nishi, Teruo Kubota, Shu Yamaguchi, Hideichi Nitta, Hiroyuki Yamashita
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Patent number: 6894019Abstract: Base particles for supporting a surfactant, obtainable by a step of spray-drying a slurry comprising (A) a zeolite having an average aggregate particle diameter of 15 ?m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less, (B) a water-soluble polymer; (C) a water-soluble salt, and (D) a surfactant in an amount of 5% by weight or less of the slurry; detergent particles comprising the base particles; and a zeolite for a laundry detergent, wherein the zeolite has an average aggregate particle diameter of 15 ?m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less; and a process for preparing base particles for supporting a surfactant, comprising a step of spray-drying a slurry comprising a zeolite (A) having an average aggregate particle diameter of 15 ?m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less, a water-soluble polymer (B), a water-soluble salt (C), anType: GrantFiled: December 18, 2001Date of Patent: May 17, 2005Assignee: Kao CorporationInventors: Kazuo Oki, Hiroji Hosokawa, Shu Yamaguchi, Kimihiro Mizusawa
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Patent number: 6864221Abstract: The present invention relates to particles for supporting a surfactant and a process for preparing the same. Further, the present invention relates to high-density detergent particles using the particles for supporting a surfactant, and a process for preparing the same.Type: GrantFiled: June 14, 2000Date of Patent: March 8, 2005Assignee: Kao CorporationInventors: Shuji Takana, Hitoshi Takaya, Hiroki Yamaboshi, Yoichi Sugiyama, Hiroshi Kitagaito, Shu Yamaguchi, Hiroyuki Yamashita
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Patent number: 6818605Abstract: The present invention relates to a granular detergent composition having easy measurability and distributivity suitable for spoon measurement, a bulk density thereof being 500 g/L or more, containing a surfactant, a water-insoluble inorganic compound and a water-soluble salt, wherein the granular detergent composition has a variance of powder dropping rate V of 1.0 or less, an inserting pressure P of 80 gf/cm or less, a &Dgr; dropping ratio D of 14% of les, and an index K of from 30 to 230, the index K being represented by the equation: K=P×exp (0.135×D), wherein P stands for an inserting pressure (gf/cm), and D stands for a &Dgr; dropping ratio (%); and a process for preparing the same.Type: GrantFiled: December 13, 2001Date of Patent: November 16, 2004Assignee: Kao CorporationInventors: Takeshi Ban, Teruo Kubota, Shu Yamaguchi, Hiroyuki Saijo, Hiroyuki Yamashita
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Publication number: 20040127387Abstract: A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard water having 71.Type: ApplicationFiled: September 15, 2003Publication date: July 1, 2004Applicant: Kao CorporationInventors: Yuhki Yanagisawa, Nobuyoshi Yamaguchi, Shu Yamaguchi, Hitoshi Takaya, Hiroyuki Yamashita
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Patent number: 6734156Abstract: The present invention relates to particles for supporting a surfactant and a process for preparing the same. Further, the present invention relates to high-density detergent particles using the particles for supporting a surfactant, and a process for preparing the same.Type: GrantFiled: February 14, 2001Date of Patent: May 11, 2004Assignee: Kao CorporationInventors: Shuji Takana, Hitoshi Takaya, Hiroki Yamaboshi, Yoichi Sugiyama, Hiroshi Kitagaito, Shu Yamaguchi, Hiroyuki Yamashita
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Patent number: 6645931Abstract: A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard, water having 71.Type: GrantFiled: June 15, 2000Date of Patent: November 11, 2003Assignee: Kao CorporationInventors: Yuhki Yanagisawa, Nobuyoshi Yamaguchi, Shu Yamaguchi, Hitoshi Takaya, Hiroyuki Yamashita
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Patent number: 6534474Abstract: The surfactant composition of the present invention is a surfactant composition which is capable of being formulated for use in a non-liquid detergent composition, the surfactant composition comprising a) a nonionic surfactant having a melting point of 30° C.Type: GrantFiled: December 4, 2000Date of Patent: March 18, 2003Assignee: Kao CorporationInventors: Kyoko Okada, Teruo Kubota, Hitoshi Takaya, Shu Yamaguchi, Hiroyuki Yamashita
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Patent number: 6521585Abstract: Detergent formulations incorporating crystalline alkali metal silicate granules provide enhanced performance in removing sebum dirt stains at low dosages of detergent in the wash. The detergent formulations are prepared by combining an alkali metal silicate having a high pH value with a nonionic surfactant and an acid precursor of an anionic surfactant capable of having a lamellar orientation. The formulation is granulated by tumbling in an agitating mixer while increasing the bulk density at elevated temperatures to yield alkali metal silicate granules having a bulk density of from 0.6 to 1.2 g/ml.Type: GrantFiled: May 6, 1998Date of Patent: February 18, 2003Assignee: Kao CorporationInventors: Hiroyuki Yamashita, Shu Yamaguchi, Teruo Kubota, Katsuhiko Kasai, Shigeru Tamura, Masaki Tsumadori
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Publication number: 20030004086Abstract: To provide particles for supporting a surfactant which are excellent in the supporting ability (supporting capacity/supporting strength) of the liquid surfactant composition and a process for preparing the same; detergent particles prepared by using the particles for supporting a surfactant; and a detergent composition comprising the detergent particles. According to the present invention, there are provided particles for supporting a surfactant having excellent supporting abilities (supporting capacity/supporting strength) of a surfactant composition; detergent particles having high quality and high deterging performance, and further having excellent hue; and a detergent composition comprising the detergent particles.Type: ApplicationFiled: April 1, 2002Publication date: January 2, 2003Inventors: Shuji Takana, Shu Yamaguchi, Fumihiko Nakamura, Shouji Tanaka, Tadanori Yoshimura, Hitoshi Takaya
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Publication number: 20020155977Abstract: To provide detergent particles having high-speed dissolution capable of dissolving quickly in water after supplying the detergent particles in water, and a method for preparing the detergent particles, and a detergent composition comprising the detergent particles. Detergent particles having an average particle size of from 150 to 500 &mgr;m and a bulk density of 500 g/liter or more, wherein the detergent particles comprising a detergent particle being capable of releasing a bubble from an inner portion of the detergent particles in a process of dissolving the detergent particle in water, the bubble having a size of one-tenth or more of a particle size of the detergent particle, and wherein the detergent particles have a dissolution rate as calculated by Equation (1) of 90% or more, under conditions where the detergent particles are supplied in water at 5° C.Type: ApplicationFiled: February 5, 2002Publication date: October 24, 2002Inventors: Teruo Kubota, Hitoshi Takaya, Shu Yamaguchi, Hiroyuki Yamashita, Shuji Takana
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Publication number: 20020123450Abstract: Base particles for supporting a surfactant, obtainable by a step of spray-drying a slurry comprising (A) a zeolite having an average aggregate particle diameter of 15 &mgr;m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less, (B) a water-soluble polymer; (C) a water-soluble salt, and (D) a surfactant in an amount of 5% by weight or less of the slurry; detergent particles comprising the base particles; and a zeolite for a laundry detergent, wherein the zeolite has an average aggregate particle diameter of 15 &mgr;m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less; and a process for preparing base particles for supporting a surfactant, comprising a step of spray-drying a slurry comprising a zeolite (A) having an average aggregate particle diameter of 15 &mgr;m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less, a water-soluble polymer (B), a water-solubleType: ApplicationFiled: December 18, 2001Publication date: September 5, 2002Inventors: Kazuo Oki, Hiroji Hosokawa, Shu Yamaguchi, Kimihiro Mizusawa
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Patent number: 6376453Abstract: To provide detergent particles having high-speed dissolution capable of dissolving quickly in water after supplying the detergent particles in water, and a method for preparing the detergent particles, and a detergent composition comprising the detergent particles. Detergent particles having an average particle size of from 150 to 500 &mgr;m and a bulk density of 500 g/liter or more, wherein the detergent particles comprising a detergent particle being capable of releasing a bubble from an inner portion of the detergent particles in a process of dissolving the detergent particle in water, the bubble having a size of one-tenth or more of a particle size of the detergent particle, and wherein the detergent particles have a dissolution rate as calculated by Equation (1) of 90% or more, under conditions where the detergent particles are supplied in water at 5° C.Type: GrantFiled: July 22, 1999Date of Patent: April 23, 2002Assignee: Kao CorporationInventors: Teruo Kubota, Hitoshi Takaya, Shu Yamaguchi, Hiroyuki Yamashita, Shuji Takana
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Patent number: RE38411Abstract: A washing method is described which has excellent washing power and a low surfactant concentration. The described clothes washing method comprises the use of a phosphorus-free clothes detergent composition comprising (a) one or more surfactants, (b) one or more alkali metal silicates, and (c) one or more metal ion capturing agents other than the alkali metal silicate (b). The above detergent composition is added to water in an amount sufficient to produce a washing liquid having the following washing conditions (1) a pH of not less than 10.60; (2) containing a material having an ion capturing capacity in an amount sufficient for theoretically changing the water hardness of said water to be not more than 0.5° DH; and (3) having a surfactant concentration of from 0.07 to 0.17 g/L.Type: GrantFiled: October 5, 2001Date of Patent: February 3, 2004Assignee: Kao CorporationInventors: Shu Yamaguchi, Noriaki Ushio, Akiko Ishikura, Katsuhiko Kasai, Masaki Tsumadori, Hiroyuki Yamashita