Patents by Inventor Satoshi Yonehara

Satoshi Yonehara 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: 8670878
    Abstract: Portable equipment for displaying a vehicle page, indicative of information relating to a vehicle corresponding to the portable equipment, on a screen of a display unit, includes: a reading request receiving device that receives a reading request manipulation for requesting to display the vehicle page; a position information acquisition device that acquires position information of the portable equipment and the vehicle; an item selection device that specifies an area, in which the position of the portable equipment and the vehicle is disposed, and selects an item of a top page of the display unit according to the area among multiple items; and a page display controller that controls the display unit to display the item of the top page on the screen.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 11, 2014
    Assignee: Denso Corporation
    Inventor: Satoshi Yonehara
  • Patent number: 8637275
    Abstract: A new method of diagnosing postprandial hyperglycemia by indirectly measuring a blood glucose level is provided. Postprandial hyperglycemia is detected by measuring a glycation degree of lysine in hemoglobin, in which a side chain amino group of lysine is glycated (GHbLys %). Measurement of GHbLys % can be performed by cleaving hemoglobin by protease, treating a glycated part of a lysine residue in the obtained cleavage product of hemoglobin with fructosyl amino acid oxidase, and measuring a redox reaction between the glycated part and fructosyl amino acid oxidase.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: January 28, 2014
    Assignee: ARKRAY, Inc.
    Inventors: Satoshi Yonehara, Toshihiro Imai
  • Publication number: 20130244264
    Abstract: A method for measuring an analyte is described that includes the steps of: i) preparing a reagent (D) in which an enzyme (A) and an enzyme (B) coexist in the absence of the analyte; ii) bringing the analyte into contact with the enzyme (A) and the enzyme (B) so that the enzyme (A) acts on the analyte to produce a product (E), on which the enzyme (B) does not substantially act, from the analyte; iii) producing a product (C) by allowing the enzyme (A) or an enzyme (F) that is different from the enzyme (A) that acts on the analyte to produce a product (C) to act on the analyte and/or the product (E); and iv) detecting the product (C) by the enzyme (B).
    Type: Application
    Filed: March 11, 2013
    Publication date: September 19, 2013
    Applicants: KIKKOMAN BIOCHEMIFA COMPANY, ARKRAY, INC.
    Inventors: Koji Sugiyama, Satoshi Yonehara, Kazuhiko Shimoji
  • Publication number: 20130245858
    Abstract: Portable equipment for displaying a vehicle page, indicative of information relating to a vehicle corresponding to the portable equipment, on a screen of a display unit, includes: a reading request receiving device that receives a reading request manipulation for requesting to display the vehicle page; a position information acquisition device that acquires position information of the portable equipment and the vehicle; an item selection device that specifies an area, in which the position of the portable equipment and the vehicle is disposed, and selects an item of a top page of the display unit according to the area among multiple items; and a page display controller that controls the display unit to display the item of the top page on the screen.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: DENSO CORPORATION
    Inventor: Satoshi Yonehara
  • Patent number: 8361292
    Abstract: The present invention provides a method for analyzing hemoglobin by capillary electrophoresis, that allows the apparatus to be smaller in size, allows a highly precise analysis to be obtained, and allows the analysis to be performed in a short period of time.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: January 29, 2013
    Assignee: ARKRAY, Inc.
    Inventors: Yusuke Nakayama, Satoshi Yonehara
  • Patent number: 8273577
    Abstract: The present invention provides a phenothiazine-derivative color-measuring method that can detect a phenothiazine-derivative color even at a wavelength longer than the wavelength that exhibits maximum absorption.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: September 25, 2012
    Assignee: ARKRAY, Inc.
    Inventors: Satoshi Yonehara, Norio Inamura
  • Patent number: 8203233
    Abstract: Each of the rising edges of PWM outputs is arranged for radiation noise reduction, by the assignment of suffix of output priority, by setting the rising edge of the first output at a start time of a cycle time, by evaluating an output margin at the falling edge of the first output relative to a current of the second output, by setting the rising edge of the second output in sync with the falling edge of the first output if the output margin is smaller than the current size of the second output. The same arrangement is used for subsequent outputs to totally reduce the current size in a simplified manner, thereby preventing the power loss and heat dissipation.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: June 19, 2012
    Assignee: Denso Corporation
    Inventor: Satoshi Yonehara
  • Publication number: 20120138461
    Abstract: The present invention provides a device that decreases deformation during manufacturing of the device, provides a firm joint without use of an adhesive, and allows chemical modification of a channel during manufacturing of the device. The device includes two joined substrates, and a concavity is formed on at least one of the opposing surfaces of the two substrates so as to make a channel, where the two substrates are joined together by a covalent bond via a crosslinking agent (A), and the crosslinking agent (A) is exposed on an inner wall surface of the channel.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 7, 2012
    Applicant: ARKRAY, Inc.
    Inventors: Koji Sugiyama, Rina Matsumi, Satoshi Yonehara
  • Patent number: 8192996
    Abstract: A method for storing a tetrazolium compound stably is provided. The tetrazolium compound is stored in the presence of sodium azide. The tetrazolium compound (A) and the sodium azide (B) are present at a ratio (A:B) in the range from 1:0.02 to 1:6.2. Furthermore, when the tetrazolium compound is stored as a solution, the concentration of the sodium azide is in the range from 0.08 to 3.2 mmol/L and the concentration of the tetrazolium compound is in the range from 0.5 to 8 mmol/L. As the tetrazolium compound, it is preferable to use 2-(4-iodophenyl)-3-(2,4-dinitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium salt.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: June 5, 2012
    Assignee: Arkray, Inc.
    Inventors: Kaori Ishimaru, Satoshi Yonehara
  • Patent number: 8137512
    Abstract: A process for analyzing a sample by a capillary electrophoresis method is provided that allows the apparatus to be reduced in size, allows a high analytical precision to be obtained, and can be carried out easily. The analytical process of the present invention is a process for analyzing a sample by a capillary electrophoresis method. The analytical process includes preparing a capillary tube to be used for the capillary electrophoresis method, and performing electrophoretic separation of a complex of a sample and an anionic group-containing compound that are bonded together, in the capillary tube, wherein the capillary tube includes an anionic layer that is formed of the anionic group-containing compound and that is coated on the inner wall of the capillary tube, and the anionic layer is fixed to the inner wall of the capillary tube by a covalent bond.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: March 20, 2012
    Assignees: National Institute of Advanced Industrial Science and Technology, Arkray, Inc.
    Inventors: Yoshihide Tanaka, Shinichi Wakida, Yusuke Nakayama, Satoshi Yonehara
  • Publication number: 20120048734
    Abstract: An analysis apparatus is provided with a storage tank, an injection nozzle, a syringe, a collection nozzle, a test sample tank, a microchip having two or more separation channels, detectors, a waste liquid tank, a controller, and a power supply. The collection nozzle collects a specimen which becomes a test sample from a test sample container housing the specimen, and transfers the specimen to the test sample tank. The separation channels separate characteristic components contained in the test sample. The injection nozzle is distanced from the collection nozzle and injects the test sample from the test sample tank into the separation channels. The detectors detect the separated characteristic components in the separation channels.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 1, 2012
    Applicant: ARKRAY, Inc.
    Inventors: Koji Sugiyama, Daisuke Matsumoto, Yasunori Shiraki, Satoshi Yonehara
  • Publication number: 20120012462
    Abstract: An electrophoresis chip that enables an apparatus to be small, analysis time to be short and glycosylated hemoglobin to be analyzed highly accurately is provided. The electrophoresis chip includes an upper substrate 4, a lower substrate 1, a first introduction reservoir 2a, a first recovery reservoir 2b and a capillary channel for sample analysis 3x; the first introduction reservoir 2a and the first recovery reservoir 2b are formed in the lower substrate 1; and the first introduction reservoir 2a and the first recovery reservoir 2b are in communication with each other via the capillary channel for sample analysis 3x.
    Type: Application
    Filed: August 31, 2011
    Publication date: January 19, 2012
    Inventors: Koji Sugiyama, Satoshi Yonehara, Yusuke Nakayama
  • Patent number: 8026078
    Abstract: The present invention provides a method of measuring a glycated protein in a sample using a redox reaction, by which the glycated protein can be measured accurately with high sensitivity. In order to remove a glycated amino acid present in the sample other than the glycated protein, the glycated amino acid is degraded in advance by causing a fructosyl amino acid oxidase to act thereon, and thereafter, a fructosyl amino acid oxidase is caused to act on the glycated protein in the presence of a tetrazolium compound and sodium azide to cause a redox reaction. The amount of the glycated protein is determined by measuring the redox reaction. As the glycated protein, glycated hemoglobin is preferable.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: September 27, 2011
    Assignee: ARKRAY Inc.
    Inventors: Satoshi Yonehara, Kaori Ishimaru, Tsuguki Komori
  • Patent number: 8021855
    Abstract: A method of assaying a glycated protein in a sample with the use of redox reaction, in which highly reliable measurement can be obtained. A sample containing a glycated protein is treated with protease in the presence of a sulfonic acid compound, so that the glycated protein is degraded. The glycated portion of the resultant glycated protein degradation product is reacted with fructosyl amino acid oxidase, and this redox reaction is measured, thereby determining the amount of glycated protein. Sodium lauryl sulfate can be used as the sulfonic acid compound.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: September 20, 2011
    Assignee: ARKRAY Inc.
    Inventors: Satoshi Yonehara, Kaori Ishimaru, Kaoru Hirai
  • Patent number: 8008085
    Abstract: A method of measuring HbA1c is provided that, even with a whole blood sample after storage, measurement accuracy substantially equal to a whole blood sample right after collection can be maintained. Whole blood is stored in a presence of a glycolytic inhibitor and protease is added to the stored whole blood sample to cleave hemoglobin in the whole blood sample. Then a glycated part of a hemoglobin fragment thereby obtained is treated with fructosyl amine oxidase. Thereafter, a glycation degree of HbA1c is determined by measuring a redox reaction between the glycated part and the fructosyl amine oxidase. Further, instead of storage of the whole blood in a presence of the glycolytic inhibitor, a strong electrolyte substance such as KCl, K2SO4, KNO, NaCl, Na2SO4, NaNO, MgCl2, MgSO4, Mg(NO)2, etc. is added to the whole blood after storage and a protease treatment is performed in a presence of the strong electrolyte substance.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 30, 2011
    Assignee: ARKRAY, Inc.
    Inventors: Satoshi Yonehara, Norio Inamura
  • Publication number: 20110174621
    Abstract: A sample analysis method with improved separation accuracy is provided. The method relates to a method for analyzing a sample by electrophoresis using an electrophoresis apparatus provided with a channel and a sample reservoir formed in the channel. The method includes: placing the sample in the sample reservoir of the electrophoresis apparatus with the channel being filled with an electrophoresis running buffer; and performing electrophoresis by applying a voltage to both ends of the channel. The concentration of at least one of a) and b) is set to be approximately the same between the sample and the electrophoresis running buffer; wherein a) and b) are defined as follows: a) an ion that moves in the same direction as an analyte in the sample by the electrophoresis and has a smaller degree of mobility than the analyte, and b) an ion that moves in the opposite direction to the analyte.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 21, 2011
    Inventors: Satoshi Yonehara, Yusuke Nakayama
  • Publication number: 20110155573
    Abstract: A method for analyzing hemoglobin by electrophoresis, capable of analyzing hemoglobin A1c (HbA1c) and modified hemoglobin with improved accuracy in a shortened analysis time is provided. The method for analyzing hemoglobin by electrophoresis includes performing electrophoresis under conditions in which an acidic substance having two or more carboxyl groups is present in an electrophoresis solution. At least two of the carboxyl groups of the acidic substance each have an acid dissociation constant (pKa) lower than the pH of the electrophoresis solution at the time of analysis.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Applicant: ARKRAY, Inc.
    Inventors: Yusuke Nakayama, Satoshi Yonehara
  • Publication number: 20110015391
    Abstract: The present invention provides a stabilizer that can stabilize a salt of 10-(carboxymethylaminocarbonyn-3,7-bis(dimethylamino)phenothiazine or a derivative thereof even under the existence of moisture or under light irradiation. A compound described in at least one of (1) and (2) below is used as the stabilizer of the salt of 10-(carboxymethylaminocarbonyl)-3,7-bis(dimethylamino)phenothiazine or the derivative thereof.
    Type: Application
    Filed: March 18, 2009
    Publication date: January 20, 2011
    Applicant: ARKRAY, INC.
    Inventors: Satoshi Yonehara, Norio Inamura
  • Patent number: 7871789
    Abstract: An albumin denaturing agent for digesting an albumin by a protease efficiently is provided. The albumin denaturing agent contains quaternary ammonium having a hydrocarbon group with a carbon number of 12 or more, or a salt of the quaternary ammonium. The albumin in a sample is digested by the protease in the presence of the albumin denaturing agent, a glycated part of the thus obtained albumin digestion product and a FAOD effect a reaction, and a redox reaction between the glycated part and the FAOD is measured, thereby determining a ratio (GA (%)) of the glycated albumin of the glycated albumin with respect to the albumin.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: January 18, 2011
    Assignee: ARKRAY, Inc.
    Inventors: Satoshi Yonehara, Norio Imamura
  • Patent number: RE43795
    Abstract: The present invention provides a method of pretreating a sample containing a glycated amine as an analyte, thereby enabling highly reliable measurement of a glycated amine. A glycated amino acid in the sample is degraded by causing a fructosyl amino acid oxidase (FAOD) to act thereon, and thereafter, a FAOD further is caused to act on the glycated amine as the analyte in the sample to cause a redox reaction. The amount of the glycated amine is determined by measuring the redox reaction. The substrate specificity of the FAOD caused to act on the glycated amino acid may be either the same as or different from that of the FAOD caused to act on the glycated amine. When using the same FAOD, a FAOD is caused to act on the glycated amino acid to degrade it, and thereafter, the sample is treated with a protease to inactivate the FAOD and also to degrade the glycated amine.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 6, 2012
    Assignee: ARKRAY, Inc.
    Inventors: Satoshi Yonehara, Tsuguki Komori