Patents by Inventor Daishi FUJITA

Daishi FUJITA 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).

  • Patent number: 11815475
    Abstract: The present invention provides a novel method for identifying a molecular structure by a single crystal X-ray analysis. A single crystal that gives an X-ray diffraction spectrum sufficient for determining a structure of a molecule can be efficiently obtained by including a test molecule in a metal complex, and then crystallizing the test-molecule included in the metal complex. By analyzing this single crystal by an X-ray analysis, it is possible to determine a structure of the test molecule without obtaining a single crystal of the test molecule. With the novel method according to the present invention, the structure of a test molecule in a trace amount of a sample can also be determined.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 14, 2023
    Assignee: THE UNIVERSITY OF TOKYO
    Inventors: Makoto Fujita, Daishi Fujita, Yuya Domoto, Hiroki Takezawa
  • Publication number: 20200096461
    Abstract: The present invention provides a novel method for identifying a molecular structure by single crystal X-ray analysis. A single crystal that gives an X-ray diffraction spectrum sufficient for determining the structure of the molecule can be efficiently obtained by including a test molecule in a metal complex and then crystallizing the test-molecule-including metal complex. By analyzing this single crystal by X-ray analysis, it is possible to determine the structure of the test molecule without obtaining a single crystal of the test molecule. With the method according to the present invention, the structure of a test molecule in a trace amount of sample can also be determined.
    Type: Application
    Filed: February 28, 2018
    Publication date: March 26, 2020
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Makoto Fujita, Daishi Fujita, Yuya Domoto, Hiroki Takezawa
  • Patent number: 10471429
    Abstract: A material film is formed as a thin film having a thickness of 1 ?m on a surface of a glass substrate. A plurality of micro-chambers having a diameter of 5 ?m are formed in the material film to be arrayed at a high density. The respective chambers filled with an aqueous test solution have openings that are liquid-sealed by a lipid bilayer membrane to provide a high-density micro-chamber array. Significant downsizing of the micro-chambers enhances a change in concentration by a reaction of one biomolecule in the chamber and thereby increases the detection sensitivity. In the configuration that a large number of micro-chambers are formed at a high density, even in the case of an extremely slow reaction of the biomolecule, the reaction proceeds in any of the chambers. This configuration accordingly enables the reaction of the biomolecule to be detected with high sensitivity.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: November 12, 2019
    Assignee: THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki Noji, Rikiya Watanabe, Hiroaki Suga, Daishi Fujita
  • Publication number: 20160296928
    Abstract: A material film is formed as a thin film having a thickness of 1 ?m on a surface of a glass substrate. A plurality of micro-chambers having a diameter of 5 ?m are formed in the material film to be arrayed at a high density. The respective chambers filled with an aqueous test solution have openings that are liquid-sealed by a lipid bilayer membrane to provide a high-density micro-chamber array. Significant downsizing of the micro-chambers enhances a change in concentration by a reaction of one biomolecule in the chamber and thereby increases the detection sensitivity. In the configuration that a large number of micro-chambers are formed at a high density, even in the case of an extremely slow reaction of the biomolecule, the reaction proceeds in any of the chambers. This configuration accordingly enables the reaction of the biomolecule to be detected with high sensitivity.
    Type: Application
    Filed: August 18, 2014
    Publication date: October 13, 2016
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki NOJI, Rikiya WATANABE, Hiroaki SUGA, Daishi FUJITA