Patents by Inventor Masaki Tsumadori

Masaki Tsumadori 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).

  • Patent number: 6521585
    Abstract: 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: Grant
    Filed: May 6, 1998
    Date of Patent: February 18, 2003
    Assignee: Kao Corporation
    Inventors: Hiroyuki Yamashita, Shu Yamaguchi, Teruo Kubota, Katsuhiko Kasai, Shigeru Tamura, Masaki Tsumadori
  • Patent number: 6284722
    Abstract: The present invention is targeted to obtain a high-density granular detergent composition for clothes washing having sufficient detergency even when the amount of dosage is small without lowering its detergency even after long-term storage by blending a non-soap anionic surfactant and a crystalline alkali metal silicate in a state of non-contact as much as possible. The high-density granular detergent composition for clothes washing, the granular detergent composition having a bulk density of from 0.7 to 1.2 g/cm3, including (A) a non-soap anionic surfactant; (B) a crystalline alkali metal silicate; and (C) a metal ion capturing agent other than Component (B).
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: September 4, 2001
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Hitoshi Tanimoto, Masaki Tsumadori, Hiroyuki Yamashita
  • Patent number: 6214787
    Abstract: The granular detergent composition for clothes washing including a surfactant, a metal ion capturing agent, a crystalline alkali metal silicate, and an acidic ingredient, wherein the granular detergent composition includes at least two different granules: a first granule containing the crystalline alkali metal silicate, and a second granule, which is an acidic granule, containing the acidic ingredient. In the granular detergent composition, the crystalline alkali metal silicate and the acidic ingredient are being present in different granules, and the granular detergent composition shows alkaline property in distilled water at 25° C. and has a bulk density of 650 g/L or more. Since each of an acidic ingredient and a crystalline alkali metal silicate is included in a different granule, the initial rise in the pH at initial washing can be adjusted, so that a further improved detergency against the sebum dirt stains is exhibited.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: April 10, 2001
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Shigeru Tamura, Futoshi Teranishi, Noriaki Ushio, Masaki Tsumadori, Hiroyuki Yamashita
  • Patent number: 6211141
    Abstract: A high-density powdered detergent composition which has a bulk density of 0.6 to 1.2 g/ml and which comprises 0.5 to 30% by weight of (a) a glycine-N,N-diacetic acid derivative, 5 to 45% by weight of (b) a nonionic surfactant having an HLB value of 10.5 to 15.0, 0.5 to 18% by weight of (c) an anionic surfactant and 1 to 30% by weight of (d) an aluminosilicate, each percentage being based on the total weight of the composition, and the weight ratio of the component (b) to the component (c) lying between 90:1 and 60:40. This composition contains both a glycine-N,N-diacetic acid derivative which is a builder excellent in biodegradability and sequestering power and an inorganic builder such as zeolite or crystalline silicate, and exhibits high detergency.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: April 3, 2001
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Hiromitsu Hayashi, Masaki Tsumadori, Masaaki Yamamura, Noboru Moriyama
  • Patent number: 6174852
    Abstract: A high-density powdered detergent composition which has a bulk density of 0.6 to 1.2 g/ml and which comprises 0.5 to 30% by weight of (a) a glycine-N,N-diacetic acid derivative, 20 to 50% by weight of (b) an anionic surfactant, 0.5 to 5% by weight of (c) an ether-type nonionic surfactant having an HLB value of 10.5 to 15.0 and 1 to 30% by weight of (d) an aluminosilcate, each percentage being based on the total weight of the composition, and the component (c) being contained in an amount of 0.5 to 10.0 parts by weight per 100 parts by weight of the component (b). This composition contains both a glycine-N,N-diacetic acid derivative which is a builder excellent in biodegradability and sequestering power and an inorganic builder such as zeolite or crystalline silicate, and exhibits high detergency.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: January 16, 2001
    Assignee: Kao Corporation
    Inventors: Hiromitsu Hayashi, Toshiharu Noguchi, Masaki Tsumadori, Masaaki Yamamura, Noboru Moriyama
  • Patent number: 6172030
    Abstract: Detergent compositions containing protopectinase whose optimum pH for the reaction is 7.0 or higher when protopectin or polygalacturonic acid is used as a substrate. The detergent compositions are endowed with remarkable detergency against mud soil.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: January 9, 2001
    Assignee: Kao Corporation
    Inventors: Yasunao Wada, Miyuki Kasai, Shitsuw Shikata, Atsushi Suzumatsu, Kenzo Koike, Yuji Hatada, Tohru Kobayashi, Susumu Ito, Masaki Tsumadori
  • Patent number: 6159919
    Abstract: The bleaching detergent composition in a form of granules or powders containing an organic peracid precursor which produces an organic peracid upon reaction with hydrogen peroxide in water, the organic peracid having an alkyl group with 7 to 19 carbon atoms, and a hydrogen peroxide releasing material, wherein the bleaching detergent composition comprises the following components a) to c): a) one or more surfactants; b) one or more crystalline alkali metal silicates; and c) one or more agents for capturing metal ions other than the crystalline alkali metal silicates b), wherein a total amount of the above a), b), and c) components in the bleaching detergent composition occupies from 70 to 99% by weight, and wherein the weight ratio of component b) to component a) is b/a=90/10 to 45/55, and the weight ratio of component b) to component c) is b/c=7/93 to 75/25, and wherein the weight ratio of the organic peracid precursor to nonionic surfactants used as component a) is from 10/90 to 70/30.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: December 12, 2000
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Nobuyosi Yamaguchi, Muneo Aoyagi, Noriaki Ushio, Shigeru Tamura, Masaki Tsumadori
  • Patent number: 6114297
    Abstract: The detergent composition for clothes washing includes (I) surfactant components including:A) one or more sulfonate-type anionic surfactants; and B) at least one of nonionic surfactants and sulfate-type anionic surfactants, wherein a weight ratio of Component B to Component A is B/A=1/10 to 2/1; and(II) components including:C) one or more alkali metal silicates; and D) one or more metal ion capturing agents other than component C), wherein a weight ratio of Component C to Component D is C/D=1/15 to 5/1. Here, a total amount of the components (I) is from 20 to 50% by weight, and a total amount of the components (II) is from 30 to 80% by weight, and the detergent composition has a bulk density of 0.6 g/cc or more.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: September 5, 2000
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Hitoshi Tanimoto, Masaki Tsumadori
  • Patent number: 5980580
    Abstract: A washing method characterized in that washing is carried out under conditions that a pH of a washing liquid starts increasing after a water hardness of the washing liquid starts decreasing; a detergent composition characterized by containing particles capable of delayed-exerting an alkalizing effect of a washing liquid, wherein a pH of a washing liquid starts increasing after a water hardness of the washing liquid starts decreasing; and a detergent composition comprising an alkalizing agent coated with an organic material, or organic and inorganic materials, the alkalizing agent occupying an amount of 70% by weight or more of the entire alkalizing agents in the detergent composition.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: November 9, 1999
    Assignee: KAO Corporation
    Inventors: Shu Yamaguchi, Katsuhiko Kasai, Yoko Yamaguchi, Shigeru Tamura, Masaki Tsumadori, Hiroyuki Yamashita
  • Patent number: 5961662
    Abstract: 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.degree. DH; and (3) having a surfactant concentration of from 0.07 to 0.17 g/L.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: October 5, 1999
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Noriaki Ushio, Akiko Ishikura, Katsuhiko Kasai, Masaki Tsumadori, Hiroyuki Yamashita
  • Patent number: 5618783
    Abstract: The synthesized inorganic crystalline ion exchange material has a composition represented by the following general formula in an anhydride form:aX.sub.2 O.bSiO.sub.2.cX'O,wherein X represents Na and K; X' represents Ca, or Ca and Mg; b/a is 1.4 to 2.1; c/a is 0.001 to 0.35; K/Na in X.sub.2 O is 0.09 to 1.11; Mg/Ca in X'O is 0 to 100; and K.sub.2 O/SiO.sub.2 is 0.06 to 0.25. The synthesized inorganic crystalline ion exchange material exhibits main shift peaks at least at 1080.+-.6 cm.sup.-1 in Raman scattering spectra in the range of from 900 to 1200 cm.sup.-1. The inorganic ion exchange material of the present invention is excellent in cationic exchange capacity, cationic exchange speed, and anti-solubility, making it useful to be used for a water softener and an alkalinity adjusting agent in detergents.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: April 8, 1997
    Assignee: KAO Corporation
    Inventors: Mikio Sakaguchi, Ichiro Sakamoto, Ryuichi Akagi, Shu Yamaguchi, Masaki Tsumadori
  • Patent number: 5545349
    Abstract: A bleaching composition comprising:(a) Hydrogen peroxide or peroxide that produces hydrogen peroxide in aqueous solution; and(b) An organic acid peroxide precursor that produces organic acid peroxide by reacting with said hydrogen peroxide or peroxide that produces hydrogen peroxide in aqueous solution, wherein said organic acid peroxide is represented by general formula (I): ##STR1## wherein R.sup.1 represents a straight chain or branched chain alkyl or alkenyl group having 1-5 carbon atoms, R.sup.2 represents a straight chain or branched chain alkylene group having 1-8 carbon atoms or a phenylene group that may be substituted with a straight chain or branched chain alkyl group having 1-5 carbon atoms, A represent identical or different alkylene groups having from 2 to 4 carbon atoms, and n represents an integer from 0-100.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: August 13, 1996
    Assignee: Kao Corporation
    Inventors: Jun Kurii, Noboru Nomura, Masami Itoh, Kozo Ohira, Masaki Tsumadori, Akira Matsunaga, Akio Kimura, Shigetoshi Suzue
  • Patent number: 5427711
    Abstract: The synthesized crystalline ion exchange material or a hydrate thereof has a chain structure and a composition represented by the following general formula (A) in an anhydride form:xM.sub.2 O.ySiO.sub.2.zM'O, (A)wherein M represents Na and/or K; M' represents Ca and/or Mg; y/x is 0.5 to 2.0; and z/x is 0.005 to 1.0. The chain structure exhibits at least one main scattering peak at 970.+-.20 cm.sup.-1 in Raman spectra. The detergent composition contains the above synthesized inorganic crystalline ion exchange material. The inorganic ion exchange material of the present invention is excellent in both cationic exchange capacity and anti-solubility, making it useful to be used for a water softener and alkalinity regulator in detergents. The detergent composition of the present invention contains an inorganic ion exchange material which has anti-solubility as well as excellent ion exchange capacity and alkaline capacity, thereby offering excellent washing effects and is suitable for the concentration of detergent.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: June 27, 1995
    Assignee: Kao Corporation
    Inventors: Mikio Sakaguchi, Ichiro Sakamoto, Mutsumi Kuroda, Masaki Tsumadori, Motomitsu Hasumi, Yuichi Sakamoto, Ryuichi Akagi, Fumio Sai
  • Patent number: 5013485
    Abstract: A liquid detergent composition for household use is disclosed. It comprises, as essential components, (A) 0.01-1.0% by weight of an anionic surface active agent, (B) 0.01-1.0% by weight of a terpene-type hydrocarbon solvent selected from monoterpenes and sesquiterpenes, and (C) 0.001-0.1% by weight of a water-soluble divalent metallic salt. The composition has superior detergency, exhibits a minimum adverse effect on surfaces which it contacts and a high degree of safety when in contact with the human body, and does not require rinsing.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: May 7, 1991
    Assignee: Kao Corporation
    Inventors: Kazunori Tsukuda, Masakazu Toda, Masami Saito, Masaki Tsumadori
  • Patent number: 4842760
    Abstract: A soft-finishing agent comprising specific type of di-long-chained quaternary ammonium salt is disclosed. The quaternary ammonium salt has two long-chained alkyl or alkenyl groups which have specified average carbon numbers and are derived from naturally occurring oils or fats. The soft finishing agent can provide flexibility and antistaticity to various kinds of cloth, without impairing its water adsorption capability.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: June 27, 1989
    Assignee: Kao Corporation
    Inventors: Masaki Tsumadori, Kazuo Shimizu, Junichi Inokoshi, Moriyasu Murata
  • Patent number: 4795573
    Abstract: A novel softener comprises (A) linear alkyl quaternary ammonium salt and (B) methyl-branched alkyl quaternary ammonium salt, the ratio of (A) to (B) being 70/30 to 10/90 by weight.The softener imparts softness, antistatic property and water absorbency to a variety of fibers.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: January 3, 1989
    Assignee: Kao Corporation
    Inventors: Masaki Tsumadori, Junichi Inokoshi
  • Patent number: 4238057
    Abstract: A sizing composition of the spraying type comprises from 2 to 10% by weight of a modified starch, of which a 4% aqueous solution has a viscosity of 5 to 30 centipoises at 20.degree. C., and 0.3 to 7% by weight of dipropylene glycol. It is improved in respect to ironing properties.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: December 9, 1980
    Assignee: Kao Soap Co., Ltd.
    Inventors: Kinjiro Matsunaga, Masaki Tsumadori, Yunosuke Nakagawa
  • Patent number: RE38411
    Abstract: 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: Grant
    Filed: October 5, 2001
    Date of Patent: February 3, 2004
    Assignee: Kao Corporation
    Inventors: Shu Yamaguchi, Noriaki Ushio, Akiko Ishikura, Katsuhiko Kasai, Masaki Tsumadori, Hiroyuki Yamashita