Patents by Inventor Soichiro URAI

Soichiro URAI 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: 11957143
    Abstract: The purpose of the present invention is to provide a crystal of rebaudioside D that exhibits high solubility in water. In one embodiment, the present invention provides a rebaudioside D crystal having a crystalline form ? that shows peaks in X-ray diffraction (CuK?: ?=1.5405 ?) at two or more positions selected from the group consisting of 2?=6.7±0.2 deg, 10.8±0.2 deg, 12.9±0.15 deg, and 22.2±0.2 deg.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 16, 2024
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro Urai, Yoshiaki Yokoo, Koji Nagao, Hiroshi Takiyama, Shoji Kudo
  • Patent number: 11873521
    Abstract: The purpose of the present invention is to: determine the structure of a novel steviol glycoside which is detected from species containing a large amount of Reb. C (also referred to as dulcoside B), and a trace amount of which is capable of influencing the quality of taste; and understand the taste characteristics of said steviol glycoside. The present invention provides a compound represented by formula (1) or a salt thereof, or a hydrate thereof.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 16, 2024
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Kazunari Iwaki, Katsuro Miyagawa, Eiichiro Ono, Tadayoshi Hirai, Misa Ochiai, Koji Nagao, Soichiro Urai, Takehiro Watanabe, Kohki Fujikawa
  • Publication number: 20230059067
    Abstract: The present invention pertains to a novel complex of rebaudioside D having increased water-solubility, and a novel method for increasing the solubility of rebaudioside D in water. The present invention provides a complex containing Reb. D and one or more compounds selected from sugars as well as water-soluble vitamins and salts thereof, wherein the water-solubility of Reb. D at a water temperature of 25° C. is 75 mg/100 g-H2O or higher.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 23, 2023
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Koji NAGAO, Yoshiaki YOKOO, Hiroshi TAKIYAMA
  • Publication number: 20230027601
    Abstract: There is demand for a novel method for manufacturing a RebD crystallized product. The present invention provides a method for manufacturing a RebD-containing crystallized product, including: a step for mixing a stevia plant-derived crude product having a total steviol glycoside content of 50-95 mass %, and containing at least RebA and RebD, into a solvent containing methanol or ethanol so that the supersaturation of RebD at 10° C. is at least 10 and the supersaturation of RebA at 10° C. does not exceed 18, and adjusting a crystallization solution; and a step for cooling the crystallization solution under stirring and causing RebD to precipitate.
    Type: Application
    Filed: October 30, 2020
    Publication date: January 26, 2023
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Yui UTSUMI, Keisuke TAKAYANAGI, Tomoyuki NISHIBORI, Ryoki MITSUI, Yoshiaki YOKOO, Koji NAGAO
  • Publication number: 20220363705
    Abstract: There is demand for a novel method for manufacturing a RebD crystallized product. The present invention provides a method for manufacturing a RebD-containing crystallized product, characterized in including: a step for mixing a stevia plant-derived crude product having a total steviol glycoside content of 50-95 mass %, and containing at least RebA and RebD, in a solvent containing ethanol and having a methanol concentration of 1 mg/L or less, and adjusting a crystallization solution; and a step for cooling the crystallization solution under stirring and causing RebD to precipitate.
    Type: Application
    Filed: October 30, 2020
    Publication date: November 17, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Yui UTSUMI, Keisuke TAKAYANAGI, Tomoyuki NISHIBORI, Ryoki MITSUI, Yoshiaki YOKOO, Koji NAGAO
  • Publication number: 20220338511
    Abstract: A beverage in which foaming is suppressed and a stevia extract is blended, and a method for producing the same. A beverage, wherein a total content of RebA and RebD and/or RebM is 1 to 15 in Brix in terms of sucrose, a content of RebD and/or RebM is 1 or more in Brix in terms of sucrose, and ((RebD and/or RebM)/RebA) is 0.35 or more in a mass ratio.
    Type: Application
    Filed: July 6, 2022
    Publication date: October 27, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Akiko IZUMI, Soichiro URAI, Tomoyuki NISHIBORI
  • Publication number: 20220312798
    Abstract: The present invention provides: a novel beverage having foam retentivity; and a method for improving foam retentivity. The present invention provides a beverage containing rebaudioside D and a compound represented by formula (1)(in the formula, R1 represents Xyl(1-2)Glc1-, and R2 represents Glc(1-2)[Glc(1-3)]Glc1-, Glc represents glucose, and Xyl represents xylose), wherein the sum of the content of rebaudioside D and the compound represented by formula (1) is 30-600 ppm, and the content of the compound represented by formula (1) in terms of mass is 0.5-95% of the aforementioned sum.
    Type: Application
    Filed: August 7, 2020
    Publication date: October 6, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Ryoki MITSUI, Soichiro URAI, Yoshiaki YOKOO, Koji NAGAO
  • Publication number: 20220295847
    Abstract: An aspect of the present invention provides a method for producing a rebaudioside D-containing aqueous composition comprising rebaudioside D at a concentration of 500 ppm by weight or more, the method comprising a step of stirring for dispersing a steviol glycoside component containing rebaudioside D and water in a temperature range of 40° C. to 100° C. under high shear at a tip speed (peripheral speed) of a rotor of 15 m/s or more, wherein the steviol glycoside component comprises more than 50% by weight of rebaudioside D based on a total weight of the steviol glycoside component.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 22, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Koji NAGAO, Yoshiaki YOKOO, Georgina RENTLE, Zafer GEZGIN
  • Publication number: 20220273008
    Abstract: The present invention provides a plant body containing a compound represented by Formula (1), or a salt or a hydrate thereof: [in the formula: (i) R1 represents Xyl(1-2)Glc1- and R2 represents Glc(1-2)[Glc(1-3)]Glc1- or (ii) R1 represents Glc(1-2)[Glc(1-3)]Glc1- and R2 represents Xyl(1-2)[Glc(1-3)]Glc1- (where Glc stands for glucose and Xyl stands for xylose)].
    Type: Application
    Filed: July 30, 2020
    Publication date: September 1, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Kazunari IWAKI, Katsuro MIYAGAWA, Tadayoshi HIRAI, Koji NAGAO, Yoshiaki YOKOO, Takehiro WATANABE, Kohki FUJIKAWA
  • Publication number: 20220273003
    Abstract: A steviol glycoside composition having a total content of specific nine types of steviol glycosides is equal to or more than 60% by weight and less than 95% by weight and the total content of other steviol glycosides and stevia-derived components is 5 to 40% by weight each relative to the total solid content weight of composition, weight-based ratios of rebaudioside A and rebaudioside D relative to the total content of the nine steviol glycosides are 35 to 75% and 5 to 30% by weight, respectively, and the composition has at least one of: methanol content is 0.10% by weight or less relative to the total content of the nine steviol glycosides; polyphenol content is 2.0% by weight or less relative to the total content of the nine steviol glycosides; and nitrogen amount is 0.40% by weight or less relative to the total amount of the nine steviol glycosides.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 1, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Yui UTSUMI, Keisuke TAKAYANAGI, Tomoyuki NISHIBORI, Soichiro URAI, Ryoki MITSUI, Yoshiaki YOKOO
  • Patent number: 11419352
    Abstract: There are provided a beverage in which foaming is suppressed and a stevia extract is blended, and a method for producing the same. A beverage, wherein a total content of RebA and RebD and/or RebM is 1 to 15 in Brix in terms of sucrose, a content of RebD and/or RebM is 1 or more in Brix in terms of sucrose, and ((RebD and/or RebM)/RebA) is 0.35 or more in a mass ratio.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 23, 2022
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Akiko Izumi, Soichiro Urai, Tomoyuki Nishibori
  • Publication number: 20220256902
    Abstract: The present invention provides a novel steviol glycoside containing xylose. According to the present invention, there is provided a compound represented by formula (1), or a salt or hydrate thereof. (In formula, (i) R1 represents Xyl(1-2)Glc1- and R2 represents Glc(1-2)[Glc(1-3)]Glc1-; or (ii) R1 represents Glc(1-2)[Glc(1-3)]Glc1- and R2 represents Xyl(1-2)[Glc(1-3)]Glc1-, where Glc represents glucose and Xyl represents xylose.
    Type: Application
    Filed: July 30, 2020
    Publication date: August 18, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Kazunari IWAKI, Katsuro MIYAGAWA, Tadayoshi HIRAI, Koji NAGAO, Yoshiaki YOKOO, Takehiro WATANABE, Kohki FUJIKAWA
  • Publication number: 20220226354
    Abstract: The development of a superior GLP-1 secretion-promoting component is expected. The present invention provides a GLP-1 secretion-promoting composition comprising a GLP-1 secretion-promoting component and an emulsified particle that contains an oil-in-water emulsifying agent.
    Type: Application
    Filed: April 22, 2020
    Publication date: July 21, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Koji NAGAO, Yoshiaki YOKOO
  • Publication number: 20220211731
    Abstract: It has been expected to develop a better GLP-1 secretagogue component. The present invention provides a composition for promoting GLP-1 secretion that contains emulsified particles comprising an amphiphilic GLP-1 secretagogue component and an emulsifier, wherein the emulsifier is an oil-in-water type emulsifier and the GLP-1 secretagogue component is incorporated in the emulsified particles.
    Type: Application
    Filed: April 22, 2020
    Publication date: July 7, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Koji NAGAO, Yoshiaki YOKOO
  • Publication number: 20200404955
    Abstract: The purpose of the present invention is to provide a crystal of rebaudioside D that exhibits high solubility in water. In one embodiment, the present invention provides a rebaudioside D crystal having a crystalline form ? that shows peaks in X-ray diffraction (CuK?: ?=1.5405 ?) at two or more positions selected from the group consisting of 2?=6.7±0.2 deg, 10.8±0.2 deg, 12.9±0.15 deg, and 22.2±0.2 deg.
    Type: Application
    Filed: February 28, 2019
    Publication date: December 31, 2020
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Yoshiaki YOKOO, Koji NAGAO, Hiroshi TAKIYAMA, Shoji KUDO
  • Publication number: 20200224235
    Abstract: The purpose of the present invention is to: determine the structure of a novel steviol glycoside which is detected from species containing a large amount of Reb. C (also referred to as dulcoside B), and a trace amount of which is capable of influencing the quality of taste; and understand the taste characteristics of said steviol glycoside. The present invention provides a compound represented by formula (1) or a salt thereof, or a hydrate thereof.
    Type: Application
    Filed: March 28, 2018
    Publication date: July 16, 2020
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Kazunari IWAKI, Katsuro MIYAGAWA, Eiichiro ONO, Tadayoshi HIRAI, Misa OCHIAI, Koji NAGAO, Soichiro URAI, Takehiro WATANABE, Kohki FUJIKAWA
  • Publication number: 20190352324
    Abstract: The purpose of the present invention is to determine the structure of a novel steviol glycoside that is detected in cultivers containing an abundance of Reb.C (also called dulcoside B) and that affects the quality of taste in a small amount, and to identify the quality of taste properties. According to the present invention, a compound represented by formula (1), or a derivative, salt, or hydrate thereof is provided.
    Type: Application
    Filed: December 26, 2017
    Publication date: November 21, 2019
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Kazunari IWAKI, Katsuro MIYAGAWA, Eiichiro ONO, Tadayoshi HIRAI, Misa OCHIAI, Koji NAGAO, Soichiro URAI, Takehiro WATANABE, Kohki FUJIKAWA
  • Publication number: 20180139986
    Abstract: The present invention has an object to provide a beverage wherein fading of a caramel coloring is reduced. The present invention also has an object to provide a method for producing such a beverage and a method for reducing the caramel coloring fading in the beverage. The beverage meeting the following conditions (A) and (B): (A) a ratio of a content of RebD or RebM to a content of RebA is 0.45 or more, and (B) a caramel coloring is contained so that Lab values of the beverage are respectively L: 45 to 55, a: 10 to 20, and b: 25 to 35.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 24, 2018
    Applicant: Suntory Holdings Limited
    Inventors: Akiko IZUMI, Soichiro URAI, Tomoyuki NISHIBORI, Koji NAGAO
  • Publication number: 20180125109
    Abstract: An embodiment of the present invention aims to provide a low-calorie natural beverage suppressed in decrease in sweetness during storage. Provided is a beverage meeting the following conditions: (A) a mass ratio of (RebD and/or RebM)/RebA is 0.52 to 1.58; and (B) a total Brix of RebA and RebD and/or RebM in terms of sucrose is 5 to 10.
    Type: Application
    Filed: March 31, 2017
    Publication date: May 10, 2018
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Soichiro URAI, Tomoyuki NISHIBORI, Akiko IZUMI, Koji NAGAO
  • Patent number: 9907326
    Abstract: An embodiment of the present invention provides a carbonated beverage comprising a stevia extract in which foaming is suppressed and a method for producing the same. A carbonated beverage comprising RebA and RebD and/or RebM, wherein a content of RebA is 500 ppm or less; a content of RebD and/or RebM is 486 ppm or less; ((RebD and/or RebM)/RebA) is 0.45 or more in a mass ratio; and a total content of RebA and RebD and/or RebM is 0.5 to 13.5 in Brix in terms of sucrose.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: March 6, 2018
    Assignee: SUNTORY BEVERAGE & FOOD LIMITED
    Inventors: Soichiro Urai, Akiko Izumi, Koji Nagao