Patents Assigned to Kao Corporation
  • Patent number: 11964037
    Abstract: A hair dyeing method that involves first step of applying on the hair a hair dye composition containing a compound represented by the following general formula (1A) or a salt thereof and an organic alkaline agent and having a pH of 9.0 or more and 11.0 or less: wherein a broken line represents the presence or absence of a ? bond; R1 represents a hydroxy group or an acetoxy group; and R2 represents a hydrogen atom, an acetyl group, a methyl group, or an ethyl group; and a second step of applying on the hair a hair treatment agent containing an organic acid or a salt thereof and having a pH of 5.5 or less. After performing the first step, the hair is subjected to the second step while maintaining in a wet state in which an amount of water per gram of the hair is 0.008 g or more.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: April 23, 2024
    Assignee: KAO CORPORATION
    Inventors: Ko Shiratsuki, Takahito Nakamura
  • Patent number: 11965105
    Abstract: A metal fine particle-containing ink that contains metal fine particles dispersed therein with a polymer dispersant, a low-molecular weight carboxylic acid and an aqueous solvent, wherein the polymer dispersant contains a constitutional unit derived from an acid group-containing monomer; a content of the low-molecular weight carboxylic acid C in the ink is not less than 1% by mass and not more than 15% by mass. A boiling point (C) of the low-molecular weight carboxylic acid and a boiling point (D) of the aqueous solvent satisfy the following relational formula (I); and an acid dissociation exponent pKa (C) of the low-molecular weight carboxylic acid and an acid dissociation exponent pKa (B) of an acid group in the polymer dispersant satisfy the following relational formula (II): boiling point (C)>boiling point (D) ??(I), and pKa (C)<pKa (B) ??(II).
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: April 23, 2024
    Assignee: KAO CORPORATION
    Inventors: Tomohide Yoshida, Kosuke Muto
  • Publication number: 20240122819
    Abstract: A hydrogel structure (10) includes: a continuous phase (11) of a first hydrogel; and a dispersion phase (12) of a second hydrogel, the dispersion phase being dispersed in the continuous phase (11). A ratio of a local minimum value of a load after break to a breaking load (a local minimum value of a load after break/a breaking load) of the hydrogel structure (10) is 0.1 or more.
    Type: Application
    Filed: February 5, 2021
    Publication date: April 18, 2024
    Applicant: Kao Corporation
    Inventors: Saki HAMADA, Shohei TOYOTA
  • Publication number: 20240124804
    Abstract: Provided is an ?-amylase which exhibits high amylolytic activity at low temperatures. An ?-amylase mutant, wherein an amino acid residue at a position of the following (a) and (b); (c); or (a), (b), and (c), in the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence having at least 90% identity thereto is substituted with another amino acid residue: (a) position 303 of the amino acid sequence of SEQ ID NO: 2 or a position corresponding thereto; (b) one or more positions selected from the group consisting of position 295 and position 296 of the amino acid sequence of SEQ ID NO: 2 and positions corresponding thereto; or (c) position 331 of the amino acid sequence of SEQ ID NO: 2 or a position corresponding thereto.
    Type: Application
    Filed: July 20, 2021
    Publication date: April 18, 2024
    Applicant: KAO CORPORATION
    Inventors: Mao SHAKU, Takahiro HIOKI, Akihito KAWAHARA
  • Patent number: 11959194
    Abstract: A method for producing shortened anionically modified cellulose fibers having an average fiber length of 1 ?m or more and 500 ?m or less, the method including cleaving sugar chains of anionically modified cellulose fibers by thermal decomposition under temperature conditions of 50° C. or higher and 230° C. or lower, wherein the average fiber length of the anionically modified cellulose fibers is 700 ?m or more and 10000 ?m or less. By the use of shortened anionically modified cellulose fibers or the like obtained by the method for production of the present invention, a dispersion containing fine cellulose fibers having a low viscosity and excellent handling property can be prepared while at a high concentration, so that the dispersion can be suitably used in various industrial applications such as daily sundries, household electric appliance parts, packaging materials for household electric appliances, automobile parts, and materials for three-dimensional modeling.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: April 16, 2024
    Assignee: KAO CORPORATION
    Inventors: Shunsuke Fukui, Yutaka Yoshida, Kyohei Yamato, Junnosuke Saito, Takuya Morioka, Tadanori Yoshimura, Takuma Tsuboi
  • Patent number: 11958975
    Abstract: An asphalt composition containing asphalt and polyester, wherein a content of asphaltene in the asphalt is 18% by mass or more and 40% by mass or less, and a content of the polyester is 1 part by mass or more and 10 parts by mass or less with respect to 100 parts by mass of the asphalt.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 16, 2024
    Assignee: KAO CORPORATION
    Inventors: Hiroki Kakiuchi, Ryoichi Hashimoto, Hirotaka Kashiwagi
  • Patent number: 11957557
    Abstract: A diaper 1 has a disposal tape 10 on its outer surface. The disposal tape 10 is composed of a fixed portion 12, an extensible portion 15, and a fastening portion 18 arranged in that order along the longitudinal direction X1 of the disposal tape 10 and Z-folded in that order. Unfolded, the extensible portion 15 is extensible in the longitudinal direction X1 of the disposal tape 10. The disposal tape 10 in the unfolded configuration has a first connection region 31 where the extensible portion 15 and the fastening portion overlap and a second connection region 32 where the extensible portion 15 and the fixed portion 12 overlap. At least one of the first and second connection regions has a bonded region 33 and a non-bonded region 36 where the extensible portion 15 and the fastening portion 18 or fixed portion 12 are not bonded, the non-bonded region 36 being located longitudinally proximal to the bonded region 33.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 16, 2024
    Assignee: KAO CORPORATION
    Inventors: Yuma Nakao, Yuko Fukuda
  • Patent number: 11958103
    Abstract: Inorganic coated sand in a dry state having refractory aggregate; and an inorganic binder layer formed on a surface of the refractory aggregate, in which the inorganic binder layer contains a metasilicate hydrate.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: April 16, 2024
    Assignee: KAO CORPORATION
    Inventors: Yoshimitsu Ina, Masayuki Kato
  • Publication number: 20240117012
    Abstract: Provided is an antibody that binds to the N-protein of SARS-CoV-2, and a method for utilizing the antibody.
    Type: Application
    Filed: February 21, 2022
    Publication date: April 11, 2024
    Applicants: Kao Corporation, Epsilon Molecular Engineering, Inc.
    Inventors: Shunsuke INAURA, Yuta MATSUMURA, Takuto TOJO, Atsushi NAGAMI
  • Publication number: 20240115528
    Abstract: A composition, including (A) a medicinal ingredient, (B) a water-insoluble polymer, (C) a non-volatile base, (D) a volatile solvent, and (E) water. The composition has a viscosity at 25° C. of 1.0 mPa·s or more and 10,000 mPa·s or less. The component (A) contains one or more selected from the group consisting of an anti-inflammatory analgesic component, a local irritation component, a blood circulation promoting component, an antihistamine component, a crude drug component, an antipruritic component, a local anesthetic component, a keratin softening component, and an antibacterial component. A mass ratio [(C)/(B)] of the component (C) to the component (B) in the composition is 0.05 or more and 10 or less, and a mass ratio [(E)/(D)] of the component (E) to the component (D) in the composition is 0.005 or more and 1.0 or less.
    Type: Application
    Filed: January 26, 2022
    Publication date: April 11, 2024
    Applicant: KAO CORPORATION
    Inventors: Takashi UCHIDA, Makoto NOHARA, Emi OKUBO, Shinzo OSUMI, Ryosuke FUJII
  • Publication number: 20240117433
    Abstract: A method for preparing a nucleic acid sample derived from skin stratum corneum includes: extracting nucleic acid from stratum corneum collected from a skin surface to prepare a water-soluble alcohol aqueous solution containing the nucleic acid; contacting the nucleic acid in the water-soluble alcohol aqueous solution with a solid-phase material to separate the nucleic acid; and amplifying, or reverse-transcribing and amplifying, the separated nucleic acid in the presence of single-stranded nucleic acid-binding protein to prepare a nucleic acid sample.
    Type: Application
    Filed: February 10, 2022
    Publication date: April 11, 2024
    Applicant: KAO CORPORATION
    Inventors: Takayoshi INOUE, Michiko YANO
  • Publication number: 20240117454
    Abstract: Provided are a leather improving agent which exhibits the effect of suppressing contraction of hide to enlarge the area; and a method for treating leather using the leather improving agent. The leather improving agent comprises an M23A subfamily protease as an active ingredient.
    Type: Application
    Filed: October 29, 2020
    Publication date: April 11, 2024
    Applicant: Kao Corporation
    Inventor: Takahiro Hioki
  • Publication number: 20240115546
    Abstract: A novel target molecule for pruritus was found, and a novel means for eliminating pruritus is provided.
    Type: Application
    Filed: November 24, 2023
    Publication date: April 11, 2024
    Applicant: KAO CORPORATION
    Inventors: Tomohiro MATSUMOTO, Masafumi YOKOTA, Junko ISHIKAWA, Mitsutoshi TOMINAGA, Kenji TAKAMORI
  • Publication number: 20240117189
    Abstract: The present invention relates to [1] a method for producing an asphalt emulsion, the method including a step 1: a step of melt-mixing an asphalt and a polyester to obtain an asphalt mixture, and a step 2: a step of adding an aqueous medium and a surfactant to the asphalt mixture obtained in the step 1, followed by mixing, [2] an asphalt emulsion containing composite particles, the composite particles containing an asphalt and a polyester and having a volume median particle diameter (D50) of 1 ?m or more and 40 ?m or less, [3] an asphalt mix for pavement, containing the asphalt emulsion of the above [2] and an aggregate, and [4] a method for paving a road, the method including a step of laying the asphalt mix for pavement of the above [3] onto a road at 150° C. or lower.
    Type: Application
    Filed: January 21, 2022
    Publication date: April 11, 2024
    Applicant: KAO CORPORATION
    Inventor: Hiroki KAKIUCHI
  • Patent number: 11952500
    Abstract: The present invention relates to an aqueous gravure ink containing a pigment, a water-soluble organic solvent, a surfactant and water, in which the water-soluble organic solvent contains a glycol ether having a boiling point of 100 to 260° C.; the surfactant contains a silicone-based surfactant containing a specific constitutional unit; a content of the water-soluble organic solvent in the ink is 1 to 10% by mass; and a content of water in the ink is 50 to 80% by mass. This ink exhibits a less burden on the environments, and is excellent in optical density and drying properties.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: April 9, 2024
    Assignee: KAO CORPORATION
    Inventors: Yuki Ozaki, Yasufumi Ueda, Ryuma Mizushima, Takuto Matsuzono
  • Publication number: 20240110211
    Abstract: Provided are a transformed cell having the ability to produce 2,5-pyridine dicarboxylic acids, and a method for producing 2,5-pyridine dicarboxylic acids using the same. The present invention provides a transformed cell having the ability to produce 2,5-pyridine dicarboxylic acids, the transformed cell being derived from a microbe having the ability to biosynthesize 4-aminobenzoic acids and having the enhanced expression of the following polypeptides (I) and (II): (I) a polypeptide having 4-aminobenzoic acid hydroxylation activity, and (II) a polypeptide having 4-amino-3-hydroxybenzoate 2,3-dioxygenase activity.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 4, 2024
    Applicant: Kao Corporation
    Inventors: Kyoshiro NONAKA, Fumikazu TAKAHASHI
  • Publication number: 20240110099
    Abstract: A liquid-crystal composition containing a liquid crystal having an Fd-3m structure, wherein the liquid-crystal composition is formed by blending a surfactant (a), an oil agent (b), and water (c); the surfactant (a) is a surfactant that is capable of forming at least one structural body (x) selected from a hexagonal structural body and a pre-hexagonal structural body when mixed with the water (c); the oil agent (b) is an oil agent that does not convert all of the structural body (x) into a lamellar structural body, when mixed with the structural body (x); and a ratio between the surfactant (a) and the water (c) constituting the liquid-crystal composition is a ratio that forms the structural body (x) when mixing the surfactant (a) and the water (c).
    Type: Application
    Filed: September 30, 2020
    Publication date: April 4, 2024
    Applicant: KAO CORPORATION
    Inventors: Takanori KOTERA, Noritaka TAKAHASHI
  • Patent number: 11944525
    Abstract: An absorbent article 1 includes a three-dimensionally shaped topsheet 2 having projections 24 and recesses and a backsheet 3. Opposed end flaps 1E in longitudinal end portions are formed of at least the topsheet 2 and the backsheet 3. In at least one of the longitudinal end portions, a plurality of the projections 24 of the topsheet 2 protrude outward in the longitudinal direction X beyond the end edge el of the backsheet.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 2, 2024
    Assignee: KAO CORPORATION
    Inventors: Ryoichi Yamamoto, Mina Tomita, Takuya Kouta
  • Patent number: 11945960
    Abstract: The present invention relates to [1] an aqueous composition for ink-jet printing, containing a carbodiimide compound, a polyester resin and water; [2] a ink set for ink-jet printing containing an aqueous composition a containing a carbodiimide compound and water, and an aqueous composition b containing a polyester resin; [3] an ink set for ink-jet printing, containing the aforementioned aqueous composition for ink-jet printing and a water-based ink containing a colorant; and [4] an ink-jet printing method including the step 1 of ejecting a carbodiimide compound, a polyester resin, a colorant and water onto a surface of a printing medium by an ink-jetting method to print characters or images thereon; and the step 2 of subjecting the resulting printed characters or images to heat treatment at a temperature of 50 to 200° C. According to the aqueous composition of the present invention, it is possible to obtain a printed material that is excellent in rub fatness.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: April 2, 2024
    Assignee: KAO CORPORATION
    Inventors: Tomohiko Nagano, Teruyuki Fukuda, Takahiro Maeda
  • Patent number: 11945932
    Abstract: The present invention relates to [1] a plasticizer for a halogen-based resin containing a mixture of didecyl phthalates each containing a linear or branched C10 alkyl group, in which a content of di-n-decyl phthalate in the mixture is not less than 48 mol % and not more than 70 mol %; [2] a plasticizer composition for a halogen-based resin containing the aforementioned plasticizer; and [3] a halogen-based resin composition containing a halogen-based resin and the aforementioned plasticizer. The plasticizer of the present invention has an excellent plasticizing effect on a halogen-based resin and at the same time, can exhibit excellent effects of improving all of productivity, processability, kneading properties and heat resistance without deterioration in the respective properties.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 2, 2024
    Assignee: KAO CORPORATION
    Inventors: Kojun Oshiro, Munehisa Okutsu