Patents by Inventor Hajime Kawanami

Hajime Kawanami 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).

  • Publication number: 20240076183
    Abstract: Provided are a method by which hydrogen can be continuously and efficiently produced through a dehydrogenation reaction of a formic acid solution even at a low concentration and/or low grade, and a system therefor. This method involves a reaction step for, while supplying formic acid, catalytically degrading the formic acid into carbon dioxide and hydrogen to thereby continuously produce hydrogen. This method is characterized by involving an extraction step for extracting formic acid from the formic acid solution serving as the starting material with the use of carbon dioxide obtained in the reaction step, and then supplying the formic acid to the reaction step.
    Type: Application
    Filed: January 14, 2022
    Publication date: March 7, 2024
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventor: Hajime KAWANAMI
  • Patent number: 10179755
    Abstract: A method for preparing a branched alcohol by dimerizing an aliphatic monoalcohol having three or more carbon atoms in the presence of a base and a catalyst. The dimerization reaction is performed under atmospheric pressure while injecting a hydrogen gas. With this method, it is possible to obtain a dimerized alcohol with excellent yield even when using a branched aliphatic monoalcohol as the starting material.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 15, 2019
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hajime Kawanami, Takayuki Ishizaka, Hitomi Fujiyama, Nobuyuki Kakiuchi, Norihito Shiga
  • Publication number: 20180162796
    Abstract: A method for preparing a branched alcohol by dimerizing an aliphatic monoalcohol having three or more carbon atoms in the presence of a base and a catalyst. The dimerization reaction is performed under atmospheric pressure while injecting a hydrogen gas. With this method, it is possible to obtain a dimerized alcohol with excellent yield even when using a branched aliphatic monoalcohol as the starting material.
    Type: Application
    Filed: May 27, 2016
    Publication date: June 14, 2018
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hajime KAWANAMI, Takayuki ISHIZAKA, Hitomi FUJIYAMA, Nobuyuki KAKIUCHI, Norihito SHIGA
  • Publication number: 20110288287
    Abstract: The present invention provides: a method for synthesizing a halogen-substituted saccharide from a leaving group-substituted saccharide in a short-time and continuously; a reaction composition; and a device for synthesis of same, i.e., the method being for synthesizing a halogen-substituted saccharide from a leaving group-substituted saccharide by a halogen-substituted saccharide synthesis reaction using a subcritical fluid or a supercritical fluid as the reaction solvent; the reaction composition of the same being an aqueous solution of halogen-substituted saccharide; and the device for synthesis being a device for producing the same, the method being for producing a halogen-substituted saccharide with a subcritical fluid or a supercritical fluid at a temperature of 100 to 400° C. and a pressure of 0.
    Type: Application
    Filed: December 25, 2009
    Publication date: November 24, 2011
    Inventors: Masahiro Sato, Hajime Kawanami, Fujio Mizukami
  • Patent number: 7858799
    Abstract: An ionic organic compound having a repeating unit of formula (I) can be synthesized easily from a readily available organic compound through a small number of reaction steps, can be produced without any purification technique such as chromatography, and can be used in a quite small amount for gelation of water or an ionic liquid without any other auxiliary solvent: [-(A-B-C)n-]•m(X)??(I) wherein A represents a group having a quaternary ammonium cation which is formed from a heterocyclic compound having at least one nitrogen atom; B represents a functional group, which may have a substituent, selected from amide, urea, urethane and peptide groups; C represents a divalent hydrocarbon group, which may have a substituent, capable of linking between A and B; X represents an anion; n represents the number of repeating units; m represents the total number of anions; and n and m are the same integer.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: December 28, 2010
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaru Yoshida, Nagatoshi Koumura, Nobuyuki Tamaoki, Hajime Kawanami, Hajime Matsumoto, Said Kazaoui, Nobutsugu Minami
  • Publication number: 20080210907
    Abstract: An ionic organic compound having a repeating unit of formula (I) can be synthesized easily from a readily available organic compound through a small number of reaction steps, can be produced without any purification technique such as chromatography, and can be used in a quite small amount for gelation of water or an ionic liquid without any other auxiliary solvent: [-(A-B-C)n-]•m(X) ??(I) wherein A represents a group having a quaternary ammonium cation which is formed from a heterocyclic compound having at least one nitrogen atom; B represents a functional group, which may have a substituent, selected from amide, urea, urethane and peptide groups; C represents a divalent hydrocarbon group, which may have a substituent, capable of linking between A and B; X represents an anion; n represents the number of repeating units; m represents the total number of anions; and n and m are the same integer.
    Type: Application
    Filed: January 30, 2006
    Publication date: September 4, 2008
    Applicant: NAATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Masaru Yoshida, Nagatoshi Koumura, Nobuyuki Tamaoki, Hajime Kawanami, Hajime Matsumoto, Said Kazaoui, Nobutsugu Minami
  • Publication number: 20040092725
    Abstract: The present invention relates to a method for introducing an amino group into an organic acid by reacting the organic acid and ammonia under high-temperature and high-pressure water conditions, a method for synthesizing an amino acid by reacting an organic acid and ammonia under high-temperature and high-pressure water conditions, and thereby introducing amino group into the organic acid to synthesize an amino acid, and a method for manufacturing an amino acid by reacting an organic acid and ammonia under high-temperature and high-pressure water conditions, thereby introducing an amino group into the organic acid to synthesize an amino acid, and then separating and refining it with an ion exchange resin.
    Type: Application
    Filed: December 18, 2003
    Publication date: May 13, 2004
    Inventors: Kiyotaka Hatakeda, Yutaka Ikushima, Osamu Sato, Hajime Kawanami, Mitsuhiro Kanakubo, Kazuo Torii