Patents by Inventor Tokuo Kasai

Tokuo Kasai 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: 10295471
    Abstract: A plasma spectroscopic analysis method includes a concentration process of concentrating a target in a sample, in the vicinity of one of a pair of electrodes in the presence of the sample; a plasma generation process of generating plasma in the sample by applying a voltage to the pair of electrodes; and a detection process of detecting emission of the target generated by the plasma, wherein the plasma generation process is performed in the presence of a defoaming agent.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 21, 2019
    Assignee: ARKRAY, Inc.
    Inventor: Tokuo Kasai
  • Publication number: 20180230608
    Abstract: An electrolysis device comprising a cell containing a solution, a pair of electrodes installed in the cell, and a voltage application device connected to the pair of electrodes. One electrode of the pair of electrodes is a small electrode, and another electrode of the pair of electroeds is a large electrode. An area of a liquid-contacting portion of the small electrode with the solution is smaller than an area of a liquid-contacting portion of the large electrode with the solution. In a state in which the solution is contained in the cell, only the solution is present between the liquid-contacting portion of the small electrode and a liquid surface of the solution vertically above the liquid-contacting portion of the small electrode.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 16, 2018
    Applicant: ARKRAY, Inc.
    Inventor: Tokuo Kasai
  • Publication number: 20180230613
    Abstract: An electrolysis device including a cell that contains a solution and a pair of electrodes installed in the cell. One electrode of the pair of electrodes is a carbon electrode, and a liquid-contacting portion of the carbon electrode that makes contact with the solution in the cell is configured by only a three-dimensional curved face.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 16, 2018
    Applicant: ARKRAY, Inc.
    Inventor: Tokuo Kasai
  • Publication number: 20180100803
    Abstract: A plasma spectroscopic analysis method includes a concentration process of concentrating a target in a sample, in the vicinity of one of a pair of electrodes in the presence of the sample; a plasma generation process of generating plasma in the sample by applying a voltage to the pair of electrodes; and a detection process of detecting emission of the target generated by the plasma, wherein the plasma generation process is performed in the presence of a defoaming agent.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 12, 2018
    Applicant: ARKRAY, Inc.
    Inventor: Tokuo Kasai
  • Patent number: 9759696
    Abstract: A channel bubble reduction device includes a liquid accommodation portion, that accommodates a liquid, a liquid supply apparatus that, with a pushing operation of a rod, discharges the liquid through an aperture portion of a tube portion, a first channel that connects the aperture portion of the liquid supply apparatus with the liquid accommodation portion, and an air layer formation apparatus that forms an air layer in at least one of the first channel or the tube portion.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 12, 2017
    Assignee: ARKRAY, Inc.
    Inventors: Akira Sezaki, Tokuo Kasai
  • Patent number: 9417235
    Abstract: An object is to provide an optical measurement apparatus for performing an efficient test by optical measurement without incurring incorrect measurements. To this end, the measurement apparatus utilizes a test instrument mounted thereto and including a carrier with a reagent retaining portion for application of a sample. The measurement apparatus includes a reader for color development at the reagent retaining portion, and a controller for driving control of the reader and for required determination. The controller performs the determination by utilizing the data obtained by reading the color development of the reagent after a reaction completion period Tr1-Tr6 depending on the reagent and starting from the mounting of the test instrument. When detecting that the color development at the reagent retaining portion is completed before the lapse of the reaction completion period Tr1-Tr6 after the mounting of the test instrument, the controller stops the test for the test instrument.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: August 16, 2016
    Assignee: ARKRAY, Inc.
    Inventors: Takashi Nakagawa, Shinya Nakajima, Tokuo Kasai, Kyouichi Ohshiro
  • Patent number: 9285380
    Abstract: The invention relates to a measurement system MS1 provided with a plurality of loading units 10 into which a measurement tool 4 supporting a reagent is loaded. The measurement system MS1 includes reading means 2 for reading information on an analyte provider that includes identification information, and guidance means 11 for guiding the measurement tool 4 to which an analyte derived from the analyte provider has been or is to be applied, to a loading unit that is selected from the plurality of loading units 10 and individually associated with the analyte provider based on the identification information that has been read by the reading means 2. With such configuration, the measurement results obtained from the analyte derived from the analyte provider can be easily associated with the information on the analyte provider that includes the identification information.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: March 15, 2016
    Assignee: ARKRAY, Inc.
    Inventors: Tokuo Kasai, Takashi Nakagawa, Minoru Kotaki
  • Patent number: 9285347
    Abstract: A bubble reduction device, chromatography device, bubble reduction method and bubble reduction program capable of reducing bubbles in an eluent. Included are a liquid accommodation portion, a liquid supply apparatus, an air layer formation apparatus, a first channel and an evacuation portion. The liquid accommodation portion accommodates a liquid that is to elute an analysis component from a specimen adsorbed to an adsorption portion. The liquid supply apparatus, by operation of a rod pushing up and polling down, sucks and discharges the liquid through an aperture portion of a tube portion, the aperture portion being oriented upward. The air layer formation apparatus forms an air layer in the tube portion. The first channel connects the liquid supply apparatus with the liquid accommodation portion. The evacuation portion is connected to the first channel via a first switching valve and evacuates the air layer through the first channel.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: March 15, 2016
    Assignee: ARKRAY, Inc.
    Inventors: Seiji Satake, Tokuo Kasai, Akira Sezaki, Takeshi Matsubara
  • Publication number: 20150044773
    Abstract: An analysis device 1 includes an analysis sample preparation section, a specimen sampling implement conveyance member, an analysis section, and a control section. The analysis sample preparation section uses a specimen and an analysis sample preparation member to prepare an analysis sample of the specimen. A specimen sampling implement, which retains the specimen, is mounted to the specimen sampling implement conveyance member from externally thereto, and the specimen sampling implement conveyance member conveys the specimen sampling implement. The analysis section analyzes the analysis sample. The control section controls the specimen sampling implement conveyance member so as to convey the specimen sampling implement to the analysis sample preparation section and directly transfer the specimen from the specimen sampling implement to the analysis sample preparation member at the analysis sample preparation member.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Inventor: Tokuo Kasai
  • Publication number: 20130319088
    Abstract: A liquid chromatography apparatus having: a column that adsorbs analysis components within a specimen; a plunger pump that feeds eluent A, that elutes the analysis components adsorbed at the column, in an amount greater than or equal to an amount needed for analysis of one specimen from a cylinder portion by a one-time pushing operation of a rod; a photometric unit that analyzes analysis components eluted by eluent A; an eluent loop that holds eluent B; a liquid feeding flow path that communicates the plunger pump and the column; and a first switching valve that switches the liquid feeding flow path to either of a first flow path, that causes eluent A to flow from the plunger pump to the column, and a second flow path, that causes eluent A to flow from the plunger pump through the first eluent holding loop to the column, is provided.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: ARKRAY, Inc.
    Inventors: Seiji Satake, Tokuo Kasai
  • Publication number: 20130319080
    Abstract: A channel bubble reduction device includes a liquid accommodation portion, that accommodates a liquid, a liquid supply apparatus that, with a pushing operation of a rod, discharges the liquid through an aperture portion of a tube portion, a first channel that connects the aperture portion of the liquid supply apparatus with the liquid accommodation portion, and an air layer formation apparatus that forms an air layer in at least one of the first channel or the tube portion.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 5, 2013
    Applicant: ARKRAY, Inc.
    Inventors: Akira Sezaki, Tokuo Kasai
  • Publication number: 20130319087
    Abstract: A bubble reduction device, chromatography device, bubble reduction method and bubble reduction program capable of reducing bubbles in an eluent. Included are a liquid accommodation portion, a liquid supply apparatus, an air layer formation apparatus, a first channel and an evacuation portion. The liquid accommodation portion accommodates a liquid that is to elute an analysis component from a specimen adsorbed to an adsorption portion. The liquid supply apparatus, by operation of a rod pushing up and polling down, sucks and discharges the liquid through an aperture portion of a tube portion, the aperture portion being oriented upward. The air layer formation apparatus forms an air layer in the tube portion. The first channel connects the liquid supply apparatus with the liquid accommodation portion. The evacuation portion is connected to the first channel via a first switching valve and evacuates the air layer through the first channel.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: ARKRAY, Inc.
    Inventors: Seiji Satake, Tokuo Kasai, Akira Sezaki, Takeshi Matsubara
  • Patent number: 8574511
    Abstract: It is an object to provide a test instrument and an optical measurement apparatus which enable easy matching of test results when tests by optical measurement are performed with respect to a large number of patients. To the above end, a test instrument B is provided, which includes reagent retaining portions 8A, 8B, 8C retaining a reagent which reacts with a sample to produce a color reaction. The test instrument B includes a patient information entry section 64 as an example of patient identifying information region in which patient identifying information is to be written.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: November 5, 2013
    Assignee: ARKRAY, Inc.
    Inventors: Takashi Nakagawa, Shinya Nakajima, Tokuo Kasai
  • Publication number: 20120288851
    Abstract: The invention relates to a measurement system MS1 provided with a plurality of loading units 10 into which a measurement tool 4 supporting a reagent is loaded. The measurement system MS1 includes reading means 2 for reading information on an analyte provider that includes identification information, and guidance means 11 for guiding the measurement tool 4 to which an analyte derived from the analyte provider has been or is to be applied, to a loading unit that is selected from the plurality of loading units 10 and individually associated with the analyte provider based on the identification information that has been read by the reading means 2. With such configuration, the measurement results obtained from the analyte derived from the analyte provider can be easily associated with the information on the analyte provider that includes the identification information.
    Type: Application
    Filed: November 22, 2010
    Publication date: November 15, 2012
    Applicant: ARKRAY, INC.
    Inventors: Tokuo Kasai, Takashi Nakagawa, Minoru Kotaki
  • Patent number: 8277752
    Abstract: An optical measurement apparatus is provided for conducting a test by efficiently reading color development of a reagent after reaction by optical measurement. To the above end, an optical measurement apparatus is provided which is to be used with at least one test instrument mounted to the apparatus. The test instrument includes a carrier provided with at least one reagent retaining portion which retains a reagent, and a sample is applied to the carrier. The optical measurement apparatus includes a reader for reading color development of the reagent retaining portion, and a controller for performing driving control of the reader and determination. The controller performs the determination by utilizing data obtained by a reading operation P to read the color development of the reagent performed after the lapse of a reaction completion period Tr1-Tr6 from the mounting of the test instrument, and the reaction completion period depends on the reagent.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: October 2, 2012
    Assignee: ARKRAY, Inc.
    Inventors: Takashi Nakagawa, Shinya Nakajima, Tokuo Kasai, Kazuhiro Ohmiya
  • Publication number: 20120207653
    Abstract: It is an object to provide a test instrument and an optical measurement apparatus which enable easy matching of test results when tests by optical measurement are performed with respect to a large number of patients. To the above end, a test instrument B is provided, which includes reagent retaining portions 8A, 8B, 8C retaining a reagent which reacts with a sample to produce a color reaction. The test instrument B includes a patient information entry section 64 as an example of patient identifying information region in which patient identifying information is to be written.
    Type: Application
    Filed: April 25, 2012
    Publication date: August 16, 2012
    Applicant: ARKRAY, INC.
    Inventors: Takashi Nakagawa, Shinya Nakajima, Tokuo Kasai
  • Patent number: 8182761
    Abstract: It is an object to provide a test instrument and an optical measurement apparatus which enable easy matching of test results when tests by optical measurement are performed with respect to a large number of patients. To the above end, a test instrument B is provided, which includes reagent retaining portions 8A, 8B, 8C retaining a reagent which reacts with a sample to produce a color reaction. The test instrument B includes a patient information entry section 64 as an example of patient identifying information region in which patient identifying information is to be written.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: May 22, 2012
    Assignee: Arkray, Inc.
    Inventors: Takashi Nakagawa, Shinya Nakajima, Tokuo Kasai
  • Patent number: 8016773
    Abstract: The present invention provides a lancing apparatus (A) which includes a lancet (3) which is movable to advance in a first direction from a deeper portion in a housing (2) toward a front end of a cylindrical member (8) and an analysis component (4) disposed in the cylindrical member (8). The analysis component (4) is movable in a second direction opposite to the first direction upon receiving a force in the second direction. When skin (S) bulges, the analysis component (4) moves in the second direction following the bulging of the skin, whereby blood (b) bleeding from the skin (S) is properly introduced to the analysis component (4).
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: September 13, 2011
    Assignee: Arkray, Inc.
    Inventors: Tetsuya Sakata, Daisuke Matsumoto, Tokuo Kasai
  • Patent number: D768869
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 11, 2016
    Assignee: ARKRAY, Inc.
    Inventor: Tokuo Kasai
  • Patent number: D911549
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: February 23, 2021
    Assignee: ARKRAY, Inc.
    Inventor: Tokuo Kasai