Patents by Inventor Eiichiro Ono

Eiichiro Ono 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).

  • Steviol glycoside and production method therefor, and sweetener composition containing same
    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
  • STEVIOL GLYCOSIDE HEXOSE TRANSFERASE AND GENE CODING FOR SAME
    Publication number: 20230340429
    Abstract: The purpose of the present invention is to provide a steviol glycoside hexose transferase, and a method for producing a steviol glycoside that contains glucose and/or rhamnose using said enzyme. The present invention provides a steviol glycoside hexose transferase, and a method for producing a steviol glycoside that contains glucose and/or rhamnose using said enzyme. The present invention also provides a transformant into which a steviol glycoside hexose transferase gene has been introduced, and a method for preparing said transformant.
    Type: Application
    Filed: May 1, 2023
    Publication date: October 26, 2023
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro ONO, Misa OCHIAI, Kazunari IWAKI, Tadayoshi HIRAI
  • Steviol glycoside hexose transferase and gene coding for same
    Patent number: 11702641
    Abstract: The purpose of the present invention is to provide a steviol glycoside hexose transferase, and a method for producing a steviol glycoside that contains glucose and/or rhamnose using said enzyme. The present invention provides a steviol glycoside hexose transferase, and a method for producing a steviol glycoside that contains glucose and/or rhamnose using said enzyme. The present invention also provides a transformant into which a steviol glycoside hexose transferase gene has been introduced, and a method for preparing said transformant.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 18, 2023
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro Ono, Misa Ochiai, Kazunari Iwaki, Tadayoshi Hirai
  • Rhamnose synthase derived from stevia and gene
    Patent number: 11447765
    Abstract: The purpose of the present invention is to provide a protein, said protein having an activity of synthesizing rhamnose from glucose, and a polynucleotide encoding the same. Provided are a rhamnose synthase derived from stevia and a method for producing rhamnose from glucose using a gene. Also provided is a method for producing a steviol glycoside using the rhamnose synthase derived from stevia.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: September 20, 2022
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro Ono, Misa Ochiai, Kazunari Iwaki, Tadayoshi Hirai
  • HIGH REBAUDIOSIDE C-CONTENT STEVIA PLANT
    Publication number: 20220217933
    Abstract: A high rebaudioside C-content type, non-genetically modified Stevia plant that has a higher content of rebaudioside C than wild-type Stevia varieties, more specifically at least 20% higher content. A method for producing such a high rebaudioside C-content type, non-genetically modified Stevia plant; and dried leaves obtained from such a plant.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 14, 2022
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Kazunari IWAKI, Eiichiro ONO, Tadayoshi HIRAI, Katsuro MIYAGAWA
  • High rebaudioside C-content stevia plant
    Patent number: 11284576
    Abstract: An objective of the present invention is to provide a Stevia plant having a high content of rebaudioside C. The present invention provides a high rebaudioside C-content type, non genetically modified Stevia plant that has a higher content of rebaudioside C than wild-type Stevia varieties, more specifically at least 20% higher content. The present invention further provides: a method for producing such a high rebaudioside C-content type, non genetically modified Stevia plant; and dried leaves obtained from such a plant.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: March 29, 2022
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Kazunari Iwaki, Eiichiro Ono, Tadayoshi Hirai, Katsuro Miyagawa
  • Method for producing steviol and steviol glycoside using AOBGL1 homolog
    Patent number: 11268118
    Abstract: The present invention provides a method for producing a steviol glycoside and/or steviol, said method including a step in which a steviol glycoside having at least one unbranched ?1,2-glycosidic bond is reacted with the glycosidase AOBGL1 and/or AOBGL3, or a variant thereof, so as to cleave the ?1,2-glycosidic bond.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 8, 2022
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Misa Ochiai, Eiichiro Ono
  • Method for producing mogrol or mogrol glycoside
    Patent number: 11008600
    Abstract: A novel method for producing a mogrol glycoside and mogrol has been required. The present invention provides a method for producing a mogrol glycoside and/or mogrol, said method comprising a step for cleaving at least one glucoside bond in a mogrol glycoside.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 18, 2021
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Misa Ochiai, Eiichiro Ono
  • Method for producing steviol and steviol glycoside by using AOBGL11 homolog
    Patent number: 10988790
    Abstract: There has been a demand for a new method for producing a steviol glycoside and steviol. The present invention provides a method for producing a steviol glycoside and/or steviol, the method comprising a step of breaking bonds of steviol glycoside: a glucosidic bond at position 13; a glucosyl ester bond at position 19; and/or a glycosidic bond in a side chain (excluding a rhamnoside bond).
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 27, 2021
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Misa Ochiai, Eiichiro Ono
  • NOVEL STEVIOL GLYCOSIDE AND PRODUCTION METHOD THEREFOR, AND SWEETENER COMPOSITION CONTAINING SAME
    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
  • Mogrol glycosyltransferase and gene encoding same
    Patent number: 10689682
    Abstract: To provide a mogrol glycosyltransferase and a method for producing a mogrol glycoside using the enzyme. The present invention provides a mogrol glycosyltransferase and a method for producing a mogrol glycoside using the enzyme, and a transformant into which a mogrol glycosyltransferase gene is introduced and a method for preparing the transformant.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: June 23, 2020
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro Ono, Misa Ochiai
  • HIGH REBAUDIOSIDE C-CONTENT STEVIA PLANT
    Publication number: 20200170209
    Abstract: An objective of the present invention is to provide a stevia plant having a high content of rebaudioside C. The present invention provides a high rebaudioside C-content type, non genetically modified stevia plant that has a higher content of rebaudioside C than wild-type stevia varieties, more specifically at least 20% higher content. The present invention further provides: a method for producing such a high rebaudioside C-content type, non genetically modified stevia plant; and dried leaves obtained from such a plant.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 4, 2020
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Kazunari IWAKI, Eiichiro ONO, Tadayoshi HIRAI, Katsuro MIYAGAWA
  • RHAMNOSE SYNTHASE DERIVED FROM STEVIA AND GENE
    Publication number: 20200123526
    Abstract: The purpose of the present invention is to provide a protein, said protein having an activity of synthesizing rhamnose from glucose, and a polynucleotide encoding the same. Provided are a rhamnose synthase derived from stevia and a method for producing rhamnose from glucose using a gene. Also provided is a method for producing a steviol glycoside using the rhamnose synthase derived from stevia.
    Type: Application
    Filed: April 11, 2018
    Publication date: April 23, 2020
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro ONO, Misa OCHIAI, Kazunari IWAKI, Tadayoshi HIRAI
  • STEVIOL GLYCOSIDE HEXOSE TRANSFERASE AND GENE CODING FOR SAME
    Publication number: 20200123509
    Abstract: The purpose of the present invention is to provide a steviol glycoside hexose transferase, and a method for producing a steviol glycoside that contains glucose and/or rhamnose using said enzyme. The present invention provides a steviol glycoside hexose transferase, and a method for producing a steviol glycoside that contains glucose and/or rhamnose using said enzyme. The present invention also provides a transformant into which a steviol glycoside hexose transferase gene has been introduced, and a method for preparing said transformant.
    Type: Application
    Filed: December 26, 2017
    Publication date: April 23, 2020
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro ONO, Misa OCHIAI, Kazunari IWAKI, Tadayoshi HIRAI
  • Method for preparing mogroside having no ?-1,6-glucoside bond
    Patent number: 10626430
    Abstract: The present invention provides a method for preparing a mogroside having no ?-1,6-glucoside bond comprising the step of reacting glycosidase ASBGL2, AOBGL2, AOBGL1, ASBGL1, or a variant thereof with a mogroside having at least one ?-1,6-glucoside bond, thereby cleaving said ?-1,6-glucoside bond.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: April 21, 2020
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Misa Ochiai, Eiichiro Ono
  • MOGROL GLYCOSYLTRANSFERASE AND GENE ENCODING SAME
    Publication number: 20190367961
    Abstract: To provide a mogrol glycosyltransferase and a method for producing a mogrol glycoside using the enzyme. The present invention provides a mogrol glycosyltransferase and a method for producing a mogrol glycoside using the enzyme, and a transformant into which a mogrol glycosyltransferase gene is introduced and a method for preparing the transformant.
    Type: Application
    Filed: August 12, 2019
    Publication date: December 5, 2019
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro ONO, Misa OCHIAI
  • NOVEL STEVIOL GLYCOSIDE, METHOD FOR PRODUCING SAME, AND SWEETENER COMPOSITION CONTAINING SAME
    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
  • METHOD FOR PRODUCING MOGROL OR MOGROL GLYCOSIDE
    Publication number: 20190284598
    Abstract: A novel method for producing a mogrol glycoside and mogrol has been required. The present invention provides a method for producing a mogrol glycoside and/or mogrol, said method comprising a step for cleaving at least one glucoside bond in a mogrol glycoside.
    Type: Application
    Filed: July 18, 2017
    Publication date: September 19, 2019
    Applicant: SUNTORY HOLDINGS LIMITED
    Inventors: Misa OCHIAI, Eiichiro ONO
  • Method for producing steviol and steviol glycoside using AOBGL3 homolog
    Patent number: 10415071
    Abstract: The present invention provides a method for preparing a steviol glycoside and/or steviol comprising reacting glycosidase AOBGL1 and/or AOBGL3 or a variant thereof with a steviol glycoside having at least one monoglucoside bond and/or monoglucosyl ester bond, thereby cleaving said monoglucoside bond and/or monoglucosyl ester bond.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 17, 2019
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Misa Ochiai, Eiichiro Ono
  • Mogrol glycosyltransferase and gene encoding same
    Patent number: 10407706
    Abstract: To provide a mogrol glycosyltransferase and a method for producing a mogrol glycoside using the enzyme. The present invention provides a mogrol glycosyltransferase and a method for producing a mogrol glycoside using the enzyme, and a transformant into which a mogrol glycosyltransferase gene is introduced and a method for preparing the transformant.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 10, 2019
    Assignee: SUNTORY HOLDINGS LIMITED
    Inventors: Eiichiro Ono, Misa Ochiai