Patents by Inventor Masayuki Mizushina

Masayuki Mizushina 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).

  • COLUMN PACKING MATERIAL, COLUMN USING THE SAME, AND METHOD OF SEPARATION USING THE SAME
    Publication number: 20150148226
    Abstract: Aimed at readily and exactly separate 8-hydroxy-2?-deoxyguanosine (8-OHdG) contained in a sample, a column packing material used for separating 8-OHdG, which contains a packing material composed of a material having a straight-chain hydrocarbon group having 6 or more and 30 or less carbon atoms as a functional group, and having a carbon content over the surface of carrier of 18% or less by element ratio, wherein the packing material contains 1 cumulative percent or more and 20 cumulative percent or less, on the particle-count basis, of particles having a circle-equivalent diameter, measured using a flow-type particle image analyzer, of 0.5 ?m or larger and 10 ?m or smaller, is used.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 28, 2015
    Inventors: Narushi Ito, Jun Kimura, Masayuki Mizushina, Yohei Inaba, Kenji Yokoyama
  • Column packing material, column using the same, and method of separation using the same
    Patent number: 8968567
    Abstract: Aimed at readily and exactly separate 8-hydroxy-2?-deoxyguanosine (8-OHdG) contained in a sample, a column packing material used for separating 8-OHdG, which contains a packing material composed of a material having a straight-chain hydrocarbon group having 6 or more and 30 or less carbon atoms as a functional group, and having a carbon content over the surface of carrier of 18% or less by element ratio, wherein the packing material contains 1 cumulative percent or more and 20 cumulative percent or less, on the particle-count basis, of particles having a circle-equivalent diameter, measured using a flow-type particle image analyzer, of 0.5 ?m or larger and 10 ?m or smaller, is used.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: March 3, 2015
    Assignees: Tanita Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Narushi Ito, Jun Kimura, Masayuki Mizushina, Yohei Inaba, Kenji Yokoyama
  • COLUMN PACKING MATERIAL, COLUMN USING THE SAME, AND METHOD OF SEPARATION USING THE SAME
    Publication number: 20090209753
    Abstract: Aimed at readily and exactly separate 8-hydroxy-2?-deoxyguanosine (8-OHdG) contained in a sample, a column packing material used for separating 8-OHdG, which contains a packing material composed of a material having a straight-chain hydrocarbon group having 6 or more and 30 or less carbon atoms as a functional group, and having a carbon content over the surface of carrier of 18% or less by element ratio, wherein the packing material contains 1 cumulative percent or more and 20 cumulative percent or less, on the particle-count basis, of particles having a circle-equivalent diameter, measured using a flow-type particle image analyzer, of 0.5 ?m or larger and 10 ?m or smaller, is used.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 20, 2009
    Applicants: TANITA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Narushi Ito, Jun Kimura, Masayuki Mizushina, Yohei Inaba, Kenji Yokoyama