Patents by Inventor Norihisa Hamaguchi

Norihisa Hamaguchi 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).

  • Saccharide polycondensate, method for producing the same, and application therefor
    Patent number: 11572380
    Abstract: An object of the present invention is to provide a method for producing a saccharide polycondensate which is inexpensive and is applicable to a food or beverage product. Disclosed is a method for producing a saccharide polycondensate, which comprises carrying out a saccharide polycondensation reaction in the presence of activated carbon.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: February 7, 2023
    Assignee: NIHON SHOKUHIN CO., LTD.
    Inventors: Norihisa Hamaguchi, Hitoshi Takaguchi, Yoshinori Fujimoto, Yutaka Kimoto, Hirokazu Hirai, Masayasu Takada
  • 5-hydroxymethyl-2-furfural production method
    Patent number: 11274089
    Abstract: An object of the present invention is to provide a method for producing 5-hydroxymethyl-2-furfural (5-HMF) suitable for industrial-scale production and a novel catalyst composition for use in synthesizing 5-HMF. The present invention provides a method for producing 5-HMF comprising performing a dehydration reaction of a carbohydrate comprising a hexose as a constituent sugar or a derivative thereof by using activated carbon as a catalyst; and a catalyst composition for use in the reaction for producing 5-HMF from a carbohydrate comprising a hexose as a constituent sugar through a dehydration reaction, the catalyst composition comprising activated carbon.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 15, 2022
    Assignee: NIHON SHOKUHIN KAKO CO., LTD.
    Inventors: Yuichi Nishimura, Norihisa Hamaguchi, Hitoshi Takaguchi
  • Method producing for 5-hydroxymethyl-2-furfural with suppressed by-product formation
    Patent number: 10988452
    Abstract: An object of the present invention is to provide a method for producing 5-hydroxymethyl-2-furfural (5-HMF) with suppressed production of byproducts. The present invention provides a method for producing 5-HMF, comprising the step of performing a dehydration reaction of a carbohydrate comprising a hexose as a constituent sugar or a derivative thereof to produce 5-hydroxymethyl-2-furfural, wherein the dehydration reaction is performed in the presence of activated carbon. The present invention also provides a method for producing a carbohydrate composition comprising 5-hydroxymethyl-2-furfural, comprising the step of heating a carbohydrate composition comprising one or more selected from the group consisting of a carbohydrate comprising a hexose as a constituent sugar and a derivative thereof, in the presence of an acid catalyst and activated carbon at a temperature of 90 to 400° C.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 27, 2021
    Assignee: Nihon Shokuhin Kako Co., Ltd.
    Inventors: Yuichi Nishimura, Hitoshi Takaguchi, Norihisa Hamaguchi
  • METHOD PRODUCING FOR 5-HYDROXYMETHYL-2-FURFURAL WITH SUPPRESSED BY-PRODUCT FORMATION
    Publication number: 20200399237
    Abstract: An object of the present invention is to provide a method for producing 5-hydroxymethyl-2-furfural (5-HMF) with suppressed production of byproducts. The present invention provides a method for producing 5-HMF, comprising the step of performing a dehydration reaction of a carbohydrate comprising a hexose as a constituent sugar or a derivative thereof to produce 5-hydroxymethyl-2-furfural, wherein the dehydration reaction is performed in the presence of activated carbon. The present invention also provides a method for producing a carbohydrate composition comprising 5-hydroxymethyl-2-furfural, comprising the step of heating a carbohydrate composition comprising one or more selected from the group consisting of a carbohydrate comprising a hexose as a constituent sugar and a derivative thereof, in the presence of an acid catalyst and activated carbon at a temperature of 90 to 400° C.
    Type: Application
    Filed: December 7, 2018
    Publication date: December 24, 2020
    Inventors: Yuichi Nishimura, Hitoshi Takaguchi, Norihisa Hamaguchi
  • SACCHARIDE POLYCONDENSATE, METHOD FOR PRODUCING THE SAME, AND APPLICATION THEREFOR
    Publication number: 20200123185
    Abstract: An object of the present invention is to provide a method for producing a saccharide polycondensate which is inexpensive and is applicable to a food or beverage product. Disclosed is a method for producing a saccharide polycondensate, which comprises carrying out a saccharide polycondensation reaction in the presence of activated carbon.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicant: NIHON SHOKUHIN KAKO CO., LTD.
    Inventors: Norihisa Hamaguchi, Hitoshi Takaguchi, Yoshinori Fujimoto, Yutaka Kimoto, Hirokazu Hirai, Masayasu Takada
  • 5-HYDROXYMETHYL-2-FURFURAL PRODUCTION METHOD
    Publication number: 20190330172
    Abstract: An object of the present invention is to provide a method for producing 5-hydroxymethyl-2-furfural (5-HMF) suitable for industrial-scale production and a novel catalyst composition for use in synthesizing 5-HMF. The present invention provides a method for producing 5-HMF comprising performing a dehydration reaction of a carbohydrate comprising a hexose as a constituent sugar or a derivative thereof by using activated carbon as a catalyst; and a catalyst composition for use in the reaction for producing 5-HMF from a carbohydrate comprising a hexose as a constituent sugar through a dehydration reaction, the catalyst composition comprising activated carbon.
    Type: Application
    Filed: May 9, 2017
    Publication date: October 31, 2019
    Inventors: Yuichi Nishimura, Norihisa Hamaguchi, Hitoshi Takaguchi
  • SACCHARIDE POLYCONDENSATE, METHOD FOR PRODUCING THE SAME, AND APPLICATION THEREFOR
    Publication number: 20130337109
    Abstract: An object of the present invention is to provide a method for producing a saccharide polycondensate which is inexpensive and is applicable to a food or beverage product. Disclosed is a method for producing a saccharide polycondensate, which comprises carrying out a saccharide polycondensation reaction in the presence of activated carbon.
    Type: Application
    Filed: December 13, 2011
    Publication date: December 19, 2013
    Inventors: Norihisa Hamaguchi, Hitoshi Takaguchi, Yoshinori Fujimoto, Yutaka Kimoto, Hirokazu Hirai, Masayasu Takada