Patents by Inventor Harumi Kaga

Harumi Kaga 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).

  • Hyperbranched polymers derived from anhydrosugar-related compounds and process for the preparation thereof
    Patent number: 7473757
    Abstract: The hyperbranched polymers are at least one anhydrosugar-related compound selected from the dianhydrosugar alcohol [1]: (wherein R is hydrogen atom or a hydrocarbon group having from 1 to 30 carbon atoms, provided that nR's are equal to or different from one another and at least one R of nR's is hydrogen atom, and symbol n is an integer from 1 to 10) and the anhydrosugar alcohol [2]: (wherein each of R1, R2, R3 and R4 is hydrogen atom or a hydrocarbon group having from 1 to 30 carbon atoms; provided that R1, mR2's, pR3's and R4 are equal to or different from one another and at least one R2 or R3 of said mR2's and pR3's is hydrogen atom, respectively; and symbol m is zero (0) or an integer from 1 to 20 and symbol p is an integer from 1 to 20, provided that symbol m+p is an integer from 1 to 20) or at least one anhydrosugar-related compound selected from the dianhydrosugar alcohol [1] and/or the anhydrosugar alcohol [2] with at least one sugar compound selected from the anhydrosugar as represented by th
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: January 6, 2009
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Harumi Kaga, Toyoji Kakuchi, Toshifumi Satoh, Tomoko Imai
  • Hyperbranched polymers derived from anhydrosugar-related compounds and process for the preparation thereof
    Publication number: 20050010023
    Abstract: The hyperbranched polymers are at least one anhydrosugar-related compound selected from the dianhydrosugar alcohol [1]: (wherein R is hydrogen atom or a hydrocarbon group having from 1 to 30 carbon atoms, provided that nR's are equal to or different from one another and at least one R of nR's is hydrogen atom, and symbol n is an integer from 1 to 10) and the anhydrosugar alcohol [2]: (wherein each of R1, R2, R3 and R4 is hydrogen atom or a hydrocarbon group having from 1 to 30 carbon atoms; provided that R1, mR2's, pR3's and R4 are equal to or different from one another and at least one R2 or R3 of said mR2's and pR3's is hydrogen atom, respectively; and symbol m is zero (0) or an integer from 1 to 20 and symbol p is an integer from 1 to 20, provided that symbol m+p is an integer from 1 to 20) or at least one anhydrosugar-related compound selected from the dianhydrosugar alcohol [1] and/or the anhydrosugar alcohol [2] with at least one sugar compound selected from the anhydrosugar as represented by
    Type: Application
    Filed: February 2, 2004
    Publication date: January 13, 2005
    Inventors: Harumi Kaga, Toyoji Kakuchi, Toshifumi Satoh, Tomoko Imai
  • Process for the production of carbonized material
    Patent number: 6576212
    Abstract: A process of producing a carbonized material, which includes a step of treating the biomass with a microwave for a period of time sufficient to carbonize an inner region thereof but insufficient to carbonize an outer region thereof, thereby obtaining a partly carbonized product, a step of contacting the partly carbonized product with an oxidizing gas for a period of time sufficient to carbonize the outer region, thereby obtaining a completely carbonized product, and a step of cooling the completely carbonized product in a non-oxidizing atmosphere.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: June 10, 2003
    Assignee: Secretary of Agency of Industrial Science and Technology
    Inventors: Masakatsu Miura, Harumi Kaga, Kozo Ishizaki
  • Process for the production of carbonized material
    Publication number: 20020064495
    Abstract: A process of producing a carbonized material, which includes a step of treating the biomass with a microwave for a period of time sufficient to carbonize an inner region thereof but insufficient to carbonize an outer region thereof, thereby obtaining a partly carbonized product, a step of contacting the partly carbonized product with an oxidizing gas for a period of time sufficient to carbonize the outer region, thereby obtaining a completely carbonized product, and a step of cooling the completely carbonized product in a non-oxidizing atmosphere.
    Type: Application
    Filed: May 2, 2001
    Publication date: May 30, 2002
    Inventors: Masakatsu Miura, Harumi Kaga, Kozo Ishizaki