Patents by Inventor Kenji Yamawaki

Kenji Yamawaki 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: 12063944
    Abstract: Provided is a powdered green tea extract composition, including the following components (A) to (C): (A) non-polymer catechins; (B) quinic acid; and (C) a polysaccharide, wherein the powdered green tea extract composition has a volatile content of 5.6 mass % or less, wherein a mass ratio between the component (A) and the component (B), [(B)/(A)], is less than 0.2, wherein amass ratio between the component (A) and the component (C), [(C)/(A)], is 1.2 or more, wherein, when an absolute value (?a*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37° C.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 20, 2024
    Assignee: KAO CORPORATION
    Inventors: Iyori Shirakura, Kenji Yamawaki, Jun Saito, Keita Kinoshita
  • Patent number: 11903394
    Abstract: Provided is a beverage composition, including: non-polymer catechins; and caffeine, the beverage composition satisfying the following requirements (A), (B), and (C): (A) a mass ratio of caffeine/non-polymer catechins is 0.180 or less; (B) particles contained in the beverage composition have an average particle size of 3 ?m or less; and (C) a turbidity is 30 NTU or more.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: February 20, 2024
    Assignee: KAO CORPORATION
    Inventors: Kenji Yamawaki, Yukiteru Sugiyama
  • Patent number: 11812759
    Abstract: Provided is a production method for a composition containing non-polymer catechins, including the following step (A): (A) a step of bringing tea leaves into contact with an aqueous solution having a Brix of from 0.2% to 1.0% at from 80° C. to 100° C.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 14, 2023
    Assignee: KAO CORPORATION
    Inventors: Kenji Yamawaki, Yukiteru Sugiyama
  • Publication number: 20220408752
    Abstract: Provided is a beverage composition, including: non-polymer catechins; and caffeine, the beverage composition satisfying the following requirements (A), (B), and (C): (A) a mass ratio of caffeine/non-polymer catechins is 0.130 or less; (B) particles contained in the beverage composition have an average particle size of 3 ?m or less; and (C) a turbidity is 30 NTU or more.
    Type: Application
    Filed: August 26, 2022
    Publication date: December 29, 2022
    Applicant: KAO CORPORATION
    Inventors: Kenji YAMAWAKI, Yukiteru SUGIYAMA
  • Patent number: 11464240
    Abstract: Provided is a beverage composition, including: non-polymer catechins; and caffeine, the beverage composition satisfying the following requirements (A), (B), and (C): (A) a mass ratio of caffeine/non-polymer catechins is 0.180 or less; (B) particles contained in the beverage composition have an average particle size of 3 ?m or less; and (C) a turbidity is 30 NTU or more.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 11, 2022
    Assignee: KAO CORPORATION
    Inventors: Kenji Yamawaki, Yukiteru Sugiyama
  • Publication number: 20220031790
    Abstract: Provided is a method for producing a red perilla leaf extract which enables to collect rosmarinic acid with a high yield from red perilla leaves to which an acid is added. The method for producing a red perilla leaf extract includes the following step (1): (1) a step of extracting red perilla leaves to which an acid has been added with water under a condition of a pH of from 4.0 to 8.0.
    Type: Application
    Filed: November 26, 2019
    Publication date: February 3, 2022
    Applicant: KAO CORPORATION
    Inventors: Akihiro TAKAMURA, Masazumi IWASHITA, Yuta YAMAMOTO, Kenji YAMAWAKI, Kohjiro HASHIZUME
  • Publication number: 20220022479
    Abstract: Provided is a powdered green tea extract composition, including the following components (A) to (C): (A) non-polymer catechins; (B) quinic acid; and (C) a polysaccharide, wherein the powdered green tea extract composition has a volatile content of 5.6 mass % or less, wherein a mass ratio between the component (A) and the component (B), [(B)/(A)], is less than 0.2, wherein amass ratio between the component (A) and the component (C), [(C)/(A)], is 1.2 or more, wherein, when an absolute value (?a*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37° C.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 27, 2022
    Applicant: KAO CORPORATION
    Inventors: Iyori SHIRAKURA, Kenji YAMAWAKI, Jun SAITO, Keita KINOSHITA
  • Publication number: 20210106021
    Abstract: Provided is a production method for a composition containing non-polymer catechins, including the following step (A): (A) a step of bringing tea leaves into contact with an aqueous solution having a Brix of from 0.2% to 1.0% at from 80° C. to 100° C.
    Type: Application
    Filed: October 30, 2017
    Publication date: April 15, 2021
    Applicant: KAO CORPORATION
    Inventors: Kenji YAMAWAKI YAMAWAKI, Yukiteru SUGIYAMA
  • Publication number: 20190343143
    Abstract: Provided is a beverage composition, including: non-polymer catechins; and caffeine, the beverage composition satisfying the following requirements (A), (B), and (C): (A) a mass ratio of caffeine/non-polymer catechins is 0.180 or less; (B) particles contained in the beverage composition have an average particle size of 3 ?m or less; and (C) a turbidity is 30 NTU or more.
    Type: Application
    Filed: October 30, 2017
    Publication date: November 14, 2019
    Applicant: KAO CORPORATION
    Inventors: Kenji YAMAWAKI, Yukiteru SUGIYAMA
  • Patent number: 10174053
    Abstract: The compounds of the subject invention are related to 2-substituted cephem compounds, which have a wide antimicrobial spectrum, in particular exhibit potent antimicrobial activity against beta-lactamase producing Gram negative bacteria, and pharmaceutical compositions comprising the same.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 8, 2019
    Assignees: Glaxo Group Limited, Shionogi and Co., Ltd.
    Inventors: Toshiaki Aoki, Hiroki Kusano, Xiangmin Liao, Neil David Pearson, Israil Pendrak, Jun Sato, Reema K. Thalji, Kenji Yamawaki, Katsuki Yokoo
  • Publication number: 20180186814
    Abstract: The present invention provides a compound exhibiting a strong antimicrobial spectrum against various bacteria, including gram-negative bacteria, or a pharmaceutical composition having an antimicrobial activity carbapenem-resistant bacteria. Provided is a compound represented by formula (I), an ester thereof or a pharmaceutically acceptable salt thereof, or a hydrate thereof. (I) (in the formula, —W— is —S(?O)— or S(?O)2—, -T- is CR4AR4B— or —CR5A—R5B—CR6A—R6B—, each of R2A and R2B is independently a hydrogen atom, etc., or R2A and R2B together form a substituted or unsubstituted methylidene, etc., R3 is a hydrogran atom, etc., R11 is a carboxyl, etc., and each of R7A and R7B is independently a hydrogen atom, etc.
    Type: Application
    Filed: June 30, 2016
    Publication date: July 5, 2018
    Applicant: Shionogi & Co., Ltd.
    Inventors: Kenji YAMAWAKI, Hiroki KUSANO
  • Patent number: 9950985
    Abstract: Provided is a method of producing a purified chlorogenic acid-containing composition, including: a first step of dispersing or dissolving a raw material chlorogenic acid-containing composition in an aqueous solution of organic solvent; a second step of removing a precipitate from a dispersion or a solution obtained in the first step; and a third step of bringing a solution obtained in the second step into contact with activated carbon including activated carbon (A) having a pore volume of from 0.3 mL/g to 1.0 mL/g and activated carbon (B) having a pore volume larger than that of the activated carbon (A), in which a difference [(B)?(A)] in pore volume between the activated carbon (A) and the activated carbon (B) is from 0.1 mL/g to 1.5 mL/g.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: April 24, 2018
    Assignee: KAO CORPORATION
    Inventors: Yukiteru Sugiyama, Kenji Yamawaki
  • Publication number: 20170305833
    Abstract: Provided is a method of producing a purified chlorogenic acid-containing composition, including: a first step of dispersing or dissolving a raw material chlorogenic acid-containing composition in an aqueous solution of organic solvent; a second step of removing a precipitate from a dispersion or a solution obtained in the first step; and a third step of bringing a solution obtained in the second step into contact with activated carbon including activated carbon (A) having a pore volume of from 0.3 mL/g to 1.0 mL/g and activated carbon (B) having a pore volume larger than that of the activated carbon (A), in which a difference [(B)?(A)] in pore volume between the activated carbon (A) and the activated carbon (B) is from 0.1 mL/g to 1.5 mL/g.
    Type: Application
    Filed: August 18, 2015
    Publication date: October 26, 2017
    Applicant: KAO CORPORATION
    Inventors: Yukiteru SUGIYAMA, Kenji YAMAWAKI
  • Publication number: 20170281532
    Abstract: The compounds of the subject invention are related to 2-substituted cephem compounds, which have a wide antimicrobial spectrum, in particular exhibit potent antimicrobial activity against beta-lactamase producing Gram negative bacteria, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 5, 2017
    Inventors: Toshiaki AOKI, Hiroki KUSANO, Xiangmin LIAO, Neil David PEARSON, Israil PENDRAK, Jun SATO, Reema K. THALJI, Kenji YAMAWAKI, Katsuki YOKOO
  • Patent number: 9598411
    Abstract: The disclosure relates to Substituted Benzimidazole-Type Piperidine Compounds of Formula (I): and pharmaceutically acceptable salts or solvates thereof, e.g., a pharmaceutically acceptable salt or solvate, wherein R1, R2, R3, Qa, W, U, A, B, Z, a, and the dashed lines are as defined herein, compositions comprising an effective amount of a Substituted Benzimidazole-Type Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted Benzimidazole-Type Piperidine Compound.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 21, 2017
    Assignee: Purdue Pharma L.P.
    Inventors: Nobuyuki Tanaka, Kenji Yamawaki, Jiangchao Yao, Jianming Yu, Xiaoming Zhou
  • Patent number: 9527866
    Abstract: The invention relates to processes for the production of intermediates for preparing 2-alkyl cephem compounds useful as antimicrobial drugs. The invention provides a process which comprises oxidating a compound of the formula (I) or a salt thereof to give a compound of the formula (II) or a salt thereof wherein each symbol is as defined in the specification.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: December 27, 2016
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Katsuki Yokoo, Shinya Hisakawa, Kenji Yamawaki, Toshiaki Aoki, Yutaka Yokota, Masatoshi Takeo, Mikito Asai
  • Patent number: 9334289
    Abstract: The present invention provides a novel compound which has a wide antimicrobial spectrum, and in particular exhibits potent antimicrobial activity against beta-lactamase producing Gram negative bacteria. Specifically, the present invention provides a compound of the formula (I): wherein each symbol is as defined in the specification, or an amino-protected compound when the amino group is present on the ring in the 7-side chain, or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: May 10, 2016
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Yasuhiro Nishitani, Toshiaki Aoki, Jun Sato, Kenji Yamawaki, Katsuki Yokoo, Masayuki Sano
  • Patent number: 9301939
    Abstract: Provided is a method for producing a chlorogenic acids composition having a reduced caffeine content and good taste and favor, capable of efficiently recovering high purity of chlorogenic acids from a chlorogenic acids-containing composition. The method for producing a purified chlorogenic acids composition comprises a step A of bringing a chlorogenic acids-containing composition into contact with a cation exchange resin; a step B of bringing the liquid obtained in the step A into contact with an anion exchange resin; and a step C of bringing an eluent into contact with the anion exchange resin after the step B.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: April 5, 2016
    Assignee: KAO CORPORATION
    Inventors: Kenji Yamawaki, Yukiteru Sugiyama, Hitoshi Sato
  • Patent number: 9290515
    Abstract: A compound represented by formula (I) or a pharmaceutically acceptable salt thereof wherein A represents a group represented by one of formulae (i)-(iii); B represents a group represented by formula (v) or (vi); and E represents a substituted or unsubstituted heterocyclic group having a cationic nitrogen atom.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: March 22, 2016
    Assignee: SHIONOGI & CO., LTD
    Inventors: Kenji Yamawaki, Masayuki Sano, Jun Sato
  • Patent number: 9238657
    Abstract: The present disclosure describes Cephem compounds of the formula: wherein, X is N, CH or C—Cl; T is S or the like; A and G are lower alkylene or the like; B is a single bond or the like; D is optionally present, and when present is, —NR7—, —CO—, —CO—NR7—, —NR7—CO—, —NR7—CO—NR7—, or the like; F is optionally present, and when present is or phenylene; R3 and R4 are —OR8; R5 and R6 each is independently hydrogen, halogen, nitrile, or —OR8; or an ester at the carboxyl at the 7-position side chain or at the 4-position, a compound protected at the amino on the ring in the 7-side chain, a pharmaceutically acceptable salt, or a solvate thereof, which have a wide antimicrobial spectrum and have potent antimicrobial activity against beta-lactamase producing Gram negative bacteria.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: January 19, 2016
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Yasuhiro Nishitani, Kenji Yamawaki, Yusuke Takeoka, Hideki Sugimoto, Shinya Hisakawa, Toshiaki Aoki