Patents by Inventor Masamitsu Shikata

Masamitsu Shikata 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: 20170138824
    Abstract: A preprocessing apparatus uses preprocessing kits prepared for samples, respectively, sets the preprocessing kits in plural processing ports provided so as to correspond to preprocessing items, and executes a predetermined preprocessing item. A controller which controls operations of a carrying mechanism holding and carrying the preprocessing kits, and processing parts executing the preprocessing items in the respective processing ports, includes a processing-state control part, a random access part, and a preprocessing part. The random access part is configured to check availability of a preprocessing port corresponding to a preprocessing item to be executed on a sample contained in a preprocessing kit, and set the preprocessing kit in a processing port if the processing port is available as a processing port corresponding to the preprocessing item. The preprocessing part executes a corresponding preprocessing item on a sample in a preprocessing kit when the preprocessing kit is set in the processing port.
    Type: Application
    Filed: July 2, 2014
    Publication date: May 18, 2017
    Applicant: SHIMADZU CORPORATION
    Inventors: Nobuhiro HANAFUSA, Masamitsu SHIKATA
  • Publication number: 20160187360
    Abstract: Disclosed herein is a reagent preparation supporting device including: reagent kit information storing means that stores amounts of reagents required for one analysis and a composition of a reaction liquid to be prepared; an input unit that inputs the number of samples to be analyzed; reagent amount calculating means that calls up, from the reagent kit information storing means, the data regarding the reagent kit to calculate required amounts of the reagents included in the reagent kit and a composition of the reaction liquid according to the number of samples inputted through the input unit; and a display unit that displays, as a reagent preparation table, the required amounts of the reagents included in the reagent kit and the composition of the reaction liquid to be prepared based on results calculated by the reagent amount calculating means.
    Type: Application
    Filed: February 1, 2013
    Publication date: June 30, 2016
    Applicant: SHIMADZU CORPORATION
    Inventors: Masamitsu Shikata, Nobuyuki Akinaga
  • Patent number: 8697400
    Abstract: A DNA amplification method including: subjecting a blood sample having DNA to be amplified, to a pretreatment using an alkaline aqueous solution under ordinary temperature, so as to extract double-stranded DNA from the blood sample and dissociate the double-stranded DNA into a single-stranded DNA to obtain a blood-derived sample including the single-stranded DNA; preparing an isothermal amplification reaction solution comprising a mixture of the blood-derived sample, a primer, dNTP, a strand-displacing DNA polymerase, a magnesium salt and a buffer, to establish an isothermal amplification reaction system meeting optimum conditions for the strand-displacing DNA polymerase; and amplifying DNA in the isothermal amplification reaction system using the single-stranded DNA as a template.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: April 15, 2014
    Assignee: Shimadzu Corporation
    Inventor: Masamitsu Shikata
  • Publication number: 20100151531
    Abstract: A DNA amplification method including: subjecting a blood sample having DNA to be amplified, to a pretreatment using an alkaline aqueous solution under ordinary temperature, so as to extract double-stranded DNA from the blood sample and dissociate the double-stranded DNA into a single-stranded DNA to obtain a blood-derived sample including the single-stranded DNA; preparing an isothermal amplification reaction solution comprising a mixture of the blood-derived sample, a primer, dNTP, a strand-displacing DNA polymerase, a magnesium salt and a buffer, to establish an isothermal amplification reaction system meeting optimum conditions for the strand-displacing DNA polymerase; and amplifying DNA in the isothermal amplification reaction system using the single-stranded DNA as a template.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 17, 2010
    Applicant: SHIMADZU CORPORATION
    Inventor: Masamitsu SHIKATA
  • Publication number: 20090155881
    Abstract: The present invention provides a method of conducting cell-free protein synthesis by conveniently suppressing mRNA degradation, and a reaction solution enabling cell-free protein synthesis by conveniently suppressing mRNA degradation. A cell-free protein synthesis method using a cell-free protein synthesis reaction solution containing at least an extract liquid derived from a living cell, a potassium salt, a magnesium salt, adenosine triphosphate, guanosine triphosphate, creatine phosphate, creatine kinase, amino acid, a tRNA, an mRNA, a buffer, and adenosine 3?,5?-bisphosphate.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 18, 2009
    Inventors: Masamitsu Shikata, Masaaki Ito, Toru Ezure, Takashi Suzuki
  • Patent number: 7399610
    Abstract: The present invention provides a simple cell-free protein synthesis method capable of affording synthesis of a protein in a high amount in a short time at a low cost. A method for cell-free protein synthesis using an extract derived from an insect cell, the method comprising removing a component which can pass through a semipermeable membrane through the semipermeable membrane while maintaining synthesis reaction, thereby to continuously synthesize a protein. Preferably, an mRNA is additionally supplied while said synthesis reaction is maintained. Further, said insect cell is preferably an established culture cell derived from Trichoplusia ni ovum cell.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: July 15, 2008
    Assignee: Shimadzu Corporation
    Inventors: Masamitsu Shikata, Nobuhiro Hanafusa, Shinichiro Kobayashi
  • Publication number: 20070212752
    Abstract: It is intended to provide a method capable of introducing an arbitrary modification group into a synthetic protein and a method capable of easily controlling the syntheses of a modified protein and an unmodified protein. The present invention provides a method of cell-free protein synthesis comprising: performing cell-free protein synthesis using as a reaction solution of cell-free protein synthesis, a mixture solution of an extract derived from a eukaryotic cell and a reagent solution comprising as a substrate, a substance having a desired group to be introduced as a post-translational modification group; and thereby obtaining a protein comprising the post-translational modification group introduced therein. Preferably, the group to be introduced is an acyl group of fatty acid, and the form of the post-translational modification is lipid modification at the N-terminus of the protein.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 13, 2007
    Applicants: Shimadzu Corporation, National University Corporation Yamaguchi University
    Inventors: Takashi Suzuki, Masaaki Ito, Toru Ezure, Masamitsu Shikata, Shinichiro Kobayashi, Toshihiko Utsumi
  • Publication number: 20070128688
    Abstract: The present invention provides a practical cell-free protein synthesis method capable of easily synthesizing a large amount of protein at low cost. A method for cell-free protein synthesis performed in a reaction solution containing mRNA and a living cell-derived extract solution, the reaction solution containing an oligonucleotide complementary to a sequence present in a 3? terminal region of the mRNA.
    Type: Application
    Filed: November 27, 2006
    Publication date: June 7, 2007
    Applicant: SHIMADZU CORPORATION
    Inventors: Masamitsu Shikata, Shinichiro Kobayashi
  • Publication number: 20060121560
    Abstract: The present invention provides a DNA fragment allowing easy cloning of a desired gene and capable of further improving translation efficiency, a protein expression vector and a template DNA having the DNA fragment, a mRNA obtained from the template DNA, a reaction solution for cell-free protein synthesis system containing the template DNA or the mRNA, a method for cell-free protein synthesis system using the template DNA, and, kit for cell-free protein synthesis system including the expression vector. A DNA fragment having the base sequence represented by any of SEQ ID No. 1 to 11 to use for promoting translation reaction, a protein expression vector and a template DNA having the DNA fragment, a mRNA obtained from the template DNA, a reaction solution for cell-free protein synthesis system containing the template DNA or the mRNA, a method for cell-free protein synthesis system using the template DNA, and, kit for cell-free protein synthesis system including the expression vector.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 8, 2006
    Inventors: Takashi Suzuki, Masaaki Ito, Toru Ezure, Masamitsu Shikata, Shinichiro Kobayashi
  • Publication number: 20060084146
    Abstract: The present invention provides a simple cell-free protein synthesis method capable of affording synthesis of a protein in a high amount in a short time at a low cost. A method for cell-free protein synthesis using an extract derived from an insect cell, the method comprising removing a component which can pass through a semipermeable membrane through the semipermeable membrane while maintaining synthesis reaction, thereby to continuously synthesize a protein. Preferably, an mRNA is additionally supplied while said synthesis reaction is maintained. Further, said insect cell is preferably an established culture cell derived from Trichoplusia ni ovum cell.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 20, 2006
    Inventors: Masamitsu Shikata, Nobuhiro Hanafusa, Shinichiro Kobayashi
  • Publication number: 20040175746
    Abstract: The present invention provides a HLA-typing technique that uses samples that are safe and convenient for storage and transportation and therefore can significantly reduce the cost associated with the analysis and ensure high accuracy of the analysis as well as high processing efficiency. A method for HLA typing, comprising the steps of: directly amplifying DNA from a biological sample; determining a base sequence of DNA in the biological sample; and determining HLA type on the basis of the base sequence. Preferably, the DNA amplification reaction is Polymerase Chain Reaction, the biological sample is a paper-spotted blood sample obtained by spotting blood on filter paper and drying the blood.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 9, 2004
    Inventors: Masamitsu Shikata, Tomoko Inagaki