Patents Assigned to Kikkoman Corporation
  • Publication number: 20250127197
    Abstract: An object of the invention is to provide a soy sauce with high palatability having a favorable taste while containing a large amount of lactic acid. The object is achieved by a soy sauce which has a lactic acid content of 2.5 w/v % or more and in which the lactic acid is not externally added, a method for manufacturing a soy sauce including a step of obtaining a soy sauce moromi soup by subjecting a soy sauce moromi to a solid-liquid separation treatment and a step of obtaining a soy sauce having a lactic acid content of 2.5 w/v % or more by subjecting the soy sauce moromi soup to lactic acid fermentation with a soy sauce lactic acid bacterium while adjusting to pH 5.0 to 7.0 using an alkaline agent and the like.
    Type: Application
    Filed: September 13, 2022
    Publication date: April 24, 2025
    Applicant: Kikkoman Corporation
    Inventors: Akira OHTA, Yoichi HANADA
  • Patent number: 12258589
    Abstract: Provided is a glycated hemoglobin oxidase with small measurement error or without deviation of the measured value from the true value regarding a sample containing glycated abnormal hemoglobin. Provided are a glycated hemoglobin oxidase comprising an amino acid sequence in which the amino acid at the position corresponding to position 113, 109, 106, or 102 of the amino acid sequence of SEQ ID NO: 1 is substituted with an amino acid other than a positively-charged amino acid, such as glutamic acid, alanine, or aspartic acid as well as a method and a reagent kit for measurement of glycated hemoglobin using such glycated hemoglobin oxidase. The glycated hemoglobin is capable of reacting with various genotypes and enables highly accurate measurement of glycated hemoglobin in a sample containing glycated abnormal hemoglobin.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 25, 2025
    Assignee: Kikkoman Corporation
    Inventor: Atsushi Ichiyanagi
  • Publication number: 20240306686
    Abstract: Provided is a manufacturing method for a sweetener, the manufacturing method including: a saccharification step of injecting steam at a temperature of 90° C. or higher and 150° C. or lower into a mixture of water, rice flour, and an enzyme agent to cause the mixture to react and obtaining a saccharified liquid; a decomposition step of adding rice koji to the saccharified liquid and causing the mixture of the rice koji and the saccharified liquid to react at a temperature of 50° C. or higher and 80° C. or lower to obtain a fermenting mash; a heat treatment step of heating the fermenting mash at a temperature of 100° C. or higher; and a solid-liquid separation step of subjecting the heat-treated fermenting mash to solid-liquid separation.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 19, 2024
    Applicant: Kikkoman Corporation
    Inventors: Yusuke Ito, Izumi Kobayashi, Hikari Mori, Takeharu Nakahara, Yoko Iijima
  • Publication number: 20240180218
    Abstract: The invention relates to a powdered soy sauce containing at least one of pea powder and soybean powder. The invention also relates to a method for producing a powdered soy sauce including adding at least one of pea powder and soybean powder to a liquid soy sauce 5 and then conducting dry-powdering process of the liquid soy sauce.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 6, 2024
    Applicant: Kikkoman Corporation
    Inventors: Yasushi TAKAHAGI, Hiromi OKABE, Yasutaka HASHIOKA
  • Publication number: 20240138455
    Abstract: An object of the invention is to provide a seasoning which has a flavor inherent in a soy sauce and which can still have a fruity aroma that is hardly felt with conventional soy sauces even after pasteurization, a method for suppressing a heat-deteriorated smell due to a food material to be felt when a container-packed composition containing the food material is heated in a sealed space and the like. The object is achieved by: a soy sauce or a soy sauce-like seasoning in which the content of at least one kind of ?-lactone is 100 ppb to 60,000 ppb; a method for suppressing a heat-deteriorated smell including a step of suppressing a heat-deteriorated smell due to a food material by heating a container-packed composition containing the food material and at least one kind of ?-lactone; and the like.
    Type: Application
    Filed: February 18, 2022
    Publication date: May 2, 2024
    Applicant: Kikkoman Corporation
    Inventors: Naoto OHNO, Yuri KUNITAKE, Yoichi HANADA, Akira OHTA, Gaku OKAMURA
  • Patent number: 11932860
    Abstract: The present invention provides a method for producing an alkaline phosphatase (ALP), the method including a step of: culturing an Aspergillus transformant capable of producing the ALP.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: March 19, 2024
    Assignee: Kikkoman Corporation
    Inventor: Junya Ishikawa
  • Patent number: 11932880
    Abstract: The present invention provides a protein having pentosidine oxidase activity, a method for measuring pentosidine comprising: contacting the protein with a specimen; and detecting a change caused by the contact, and the like.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 19, 2024
    Assignee: Kikkoman Corporation
    Inventors: Kazuya Marushima, Yuka Saito, Yuki Tsukada, Takuya Sato, Yasuko Araki, Atsushi Ichiyanagi
  • Patent number: 11814639
    Abstract: An object of the present invention is to provide a cucumber mosaic virus (CMV)-resistant solanaceous plant. The present invention provides a CMV-resistant solanaceous plant having a mutated eIF4E gene encoding an eIF4E protein nonfunctional for CMV. In addition, the present invention provides a method for producing a CMV-resistant plant, the method comprising mutating an eIF4E gene of a solanaceous plant into a mutated eIF4E gene encoding an eIF4E protein nonfunctional for CMV.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 14, 2023
    Assignees: Kikkoman Corporation, National University Corporation Hokkaido University
    Inventors: Hiroki Atarashi, Kenji Nakahara, Tetsuya Yamada, Chikara Masuta
  • Patent number: 11781167
    Abstract: Provided is a method of continuous glucose monitoring (CGM) comprising using an FAD-GDH. The FAD-GDH is capable of retaining initial activity over a certain period of time. Also provided is a method for screening for an FAD-GDH suitable for use in CGM as well as a CGM device comprising an FAD-GDH.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 10, 2023
    Assignee: Kikkoman Corporation
    Inventor: Yosuke Masakari
  • Publication number: 20230276831
    Abstract: A food/beverage article, comprising: one or more compounds represented by formula (I): wherein, R1 and R3 each independently represent a hydrogen atom or a C2-6 alkenyl group, R2 and R4 each independently represent a hydrogen atom or a C1-4 alkyl group, R5 and R7 each independently represent a hydrogen atom or a hydroxyl group, R6 represents a hydrogen atom or a C2-6 alkenyl group, X represents a direct bond, —CH2—, —CH?, or —C(?O)—, and Y represents —CH2—, —CH?, or —C(?O)—, wherein the total of the concentrations of the compounds is 1 ppm or more.
    Type: Application
    Filed: August 2, 2021
    Publication date: September 7, 2023
    Applicant: Kikkoman Corporation
    Inventors: Eiji Shimabe, Riichiro Uchida, Sachiko Kobayashi, Kazuya Marushima, Yoshikazu Endo, Takuya Ohira
  • Publication number: 20230138426
    Abstract: An object of the invention is to provide a soy sauce which can be manufactured by a brewing process and which does not easily deteriorate by heating and has an excellent aroma-maintaining property and an excellent shelf life while having a flavor inherent in a soy sauce. The object is achieved by a pasteurized soy sauce containing 30 ppb or more of phenethyl acetate, a pasteurized soy sauce which contains 30 ppb or more of phenethyl acetate and in which the decrease rate of the phenethyl acetate after aging at 25° C. for one week is 5% or less, brewed pasteurized soy sauces thereof and the like.
    Type: Application
    Filed: March 26, 2021
    Publication date: May 4, 2023
    Applicant: Kikkoman Corporation
    Inventors: Naoto OHNO, Yuri KUNITAKE, Akitoshi KOMURA, Yoichi HANADA
  • Publication number: 20230085844
    Abstract: In one embodiment, an object of the present invention is to provide a liquid cycling luminescence reagent excellent in stability. In one embodiment, the present invention provides a liquid composition for measuring ATP and AMP and/or ADP in a sample after storage of the liquid composition, wherein (i) the liquid composition comprises luciferase, luciferin, an enzyme that catalyzes a reaction that produces ATP from AMP, a substrate of the enzyme that catalyzes a reaction that produces ATP from AMP, and a cofactor, or when at least one of these components is not contained in the liquid composition, the component that is not contained in the liquid composition is added to the liquid composition before or during measurement, and (ii) the relative luminescence level of the liquid composition during storage is 5500 RLU or less, and the relative level of luminescence is a value determined by subtracting a control value from a measurement value.
    Type: Application
    Filed: February 15, 2021
    Publication date: March 23, 2023
    Applicant: Kikkoman Corporation
    Inventors: Shigeya SUZUKI, Yuko ICHIYANAGI
  • Patent number: 11549134
    Abstract: Provided is a composition by which glycated hemoglobin can be measured even in the presence of a stronger surfactant than a conventional case. Also provided is a buffer and/or stabilizer which maintains the residual activity of an amadoriase or lowers a reduction of residual activity. The present invention provides a composition for use in measuring glycated hemoglobin containing an amadoriase having substitution of one or more amino acid residues at a position(s) corresponding to an amino acid(s) selected from the group consisting of position 262, position 257, position 249, position 253, position 337, position 340, position 232, position 129, position 132, position 133, position 44, position 256, position 231 and position 81 of an amadoriase derived from the genus Coniochaeta and represented by SEQ ID No: 1 or 3, and having residual activity even in the presence of a surfactant.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: January 10, 2023
    Assignee: Kikkoman Corporation
    Inventors: Yosuke Masakari, Atsushi Ichiyanagi
  • Patent number: 11499143
    Abstract: Provided are an amadoriase that is less likely to be influenced by oxygen concentration and a method and a reagent kit for measurement of HbA1c using such amadoriase. Provided are an amadoriase that is obtained via substitution of one or more amino acid residues at a position or positions corresponding to the position(s) selected from the group consisting of positions 280, 267, 269, 54, and 241 of the amadoriase derived from the genus Coniochaeta, a method for measurement of HbA1c, a reagent kit for measurement, and a sensor using such amadoriase. The modified amadoriase according to the invention has a lowered oxidase activity and an enhanced dehydrogenase activity, and this enables the use of an electron mediator, and this reduces the influence of oxygen concentration. Thus, HbA1c can be measured with high sensitivity.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: November 15, 2022
    Assignee: Kikkoman Corporation
    Inventors: Yosuke Masakari, Airi Komatsuzaki, Atsushi Ichiyanagi
  • Patent number: 11384381
    Abstract: Provided is a compound which accelerates the enzymatic reaction catalyzed by an oxidase. The present invention provides an oxidase reaction accelerating agent comprising a compound represented by formula (I) and a method using the same.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 12, 2022
    Assignee: Kikkoman Corporation
    Inventors: Atsushi Ichiyanagi, Kazuhiko Shimoji
  • Patent number: 11312523
    Abstract: A synthetic resin-made multilayer bottle includes: an outer shell bottle having a shoulder section continuing from an outer opening section, and a body section continuing from the shoulder section; a synthetic resin-made inner container body having a cylindrical inner opening section provided inside the outer opening section of the outer shell bottle, and an inner container main body continuing from the inner opening section, shaped along an inner surface shape of the outer shell bottle, which deforms by an external pressure; and an air passage formed between the outer opening section and the inner opening section and which introduces outside air between the outer shell bottle and the inner container body. The inner circumferential surface of the inner opening section is provided with a small-diameter section having a diameter smaller than the inner diameter of the open end of the inner opening section.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: April 26, 2022
    Assignees: Hokkai Can Co., Ltd., Kikkoman Corporation
    Inventors: Akihiro Yamaguchi, Natsuyuki Mannen, Denmi Kuwagaki
  • Publication number: 20220064606
    Abstract: In one embodiment, an object of the present invention is to provide a firefly luciferase having improved thermostability. In one embodiment, the present invention relates to a luciferase mutant having improved thermostability that is a mutant of firefly luciferase comprising an amino acid sequence in which the amino acid residue at the position corresponding to position 393 of SEQ ID NO 1 is substituted, a polynucleotide encoding the luciferase mutant, and a production method of the luciferase mutant.
    Type: Application
    Filed: July 5, 2019
    Publication date: March 3, 2022
    Applicant: Kikkoman Corporation
    Inventors: Kanako HAYASHI, Atsushi ICHIYANAGI
  • Patent number: 11253567
    Abstract: Provided are: a citrus seed extract-containing composition, a food and a drug all of which sufficiently exert a novel function of a citrus (specifically, a citrus seed extract), and a method for producing the citrus seed extract-containing composition. The citrus seed extract-containing composition includes obacunone and nomilin both derived from a citrus seed extract. Herein, the ratio of the obacunone content to the nomilin content (i.e., obacunone content/nomilin content) is at least 0.020.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: February 22, 2022
    Assignee: Kikkoman Corporation
    Inventor: Taro Horiba
  • Patent number: 11208675
    Abstract: Provided is a compound capable of accelerating the enzymatic reaction catalyzed by peroxidase. The present invention provides a peroxidase reaction accelerating agent comprising a compound represented by formula (I) and a method for measuring hydrogen peroxide using the same.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 28, 2021
    Assignee: Kikkoman Corporation
    Inventors: Atsushi Ichiyanagi, Kazuhiko Shimoji
  • Patent number: 11198852
    Abstract: The present invention provides a composition that enables measurement of glycated hemoglobin in the presence of a stronger surfactant than conventional surfactants. To this end, the present invention provides an amadoriase in which one or more amino acids have been substituted at positions corresponding to positions selected from the group consisting of positions 80, 71, 175, 172, 279, 12, 9, 77, 30, 28, 13, 3, 4, 286, 204, 338, 44, 340, and 194 of the amadoriase derived from the genus Coniochaeta having the amino acid sequence as shown in SEQ ID NO: 1 as well as a composition for measurement of glycated hemoglobin comprising an amadoriase that retains activity in the presence of an anionic surfactant. The present invention can provide an enzyme and a composition for measurement of glycated hemoglobin that sufficiently remain stable even when exposed to anionic surfactants.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: December 14, 2021
    Assignee: Kikkoman Corporation
    Inventors: Yosuke Masakari, Airi Komatsuzaki