Patents Assigned to Arkray
  • Patent number: 9903864
    Abstract: Provide is a sample analysis tool whose reactivity and reproducibility in analysis can be prevented from decreasing. The sample analysis tool 10 of the present invention includes a development member 11 and a plastic base 16, and at least part of the development member 11 is in contact with the plastic base 16. The sample analysis tool 10 further includes a hydrophilic component layer 15, and the hydrophilic component layer 15 is formed on part or the whole of at least one of a surface of the plastic base 16 and a surface of the development member 11. It is particularly preferable that the hydrophilic component layer 15 contains sucrose or N-methyl glucosamine. In the sample analysis tool 10 of the present invention, since the hydrophilic component layer 15 is formed on part or the whole of at least one of the surface of the plastic base 16 and the surface of the development member 11, it is possible to prevent the adhesion of a hydrophobic component(s) derived from the plastic base 16.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: February 27, 2018
    Assignee: Arkray, Inc.
    Inventors: Kazuhiro Ohmiya, Tomoko Hirayama
  • Patent number: 9903863
    Abstract: Provided is an analysis method in which increase in a background can be prevented in a simple manner without cost. The analysis method of the present invention is carried out using a sample analysis tool 10 including a development member 11 in which a developing solution supply portion 12, a sample supply portion 13, and a detection portion 14 in which a substance 17 that specifically binds to an analyte 16 in a sample is immobilized are provided in this order from upstream to downstream along the flow of a developing solution. A sample solution is supplied to the sample supply portion 13, and a developing solution is supplied to the developing solution supply portion 12 simultaneously with the supply of the sample solution or prior to the supply of the sample solution. By the development of the developing solution in the development member 11 in the presence of a labeled specifically binding substance 15, the sample solution is introduced to the detection portion 14.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: February 27, 2018
    Assignee: Arkray, Inc.
    Inventor: Kazuhiro Ohmiya
  • Patent number: 9795327
    Abstract: Disclosed is a measuring device for obtaining numerical information concerning a substance present in the interstitial subcutaneous fluid, the device being equipped with a sensor unit that outputs signals in accordance with the numerical information concerning the substance and an arithmetic unit (control unit) that receives the signals outputted from the sensor unit and arithmetically processes the signals. The sensor unit is equipped with a sensor, some of which is punctured into the skin. The arithmetic unit (control unit) has been disposed so as to be separate from the sensor unit.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 24, 2017
    Assignee: Arkray, Inc.
    Inventors: Tomohiro Shoshihara, Yasunori Shiraki, Koji Katsuki
  • Patent number: 9487484
    Abstract: Provided is a stilbazolium derivative represented by the general formula (I): wherein R1, R2, R3, and R4 independently represent hydrogen, halogen, alkyl, hydroxyl, carboxyl, or amino; R5 represents hydrogen or alkyl; X represents oxygen or NR6 (R6 is hydrogen or alkyl); and Y? represents an anion. In the general formula (I), some or all of hydrogens maybe deuterium.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 8, 2016
    Assignees: Arkray, Inc., National University Corporation Yamagata University
    Inventors: Kazuyoshi Aoki, Shuji Okada
  • Publication number: 20160305866
    Abstract: Provided is a measurement system for performing qualitative measurement and quantitative measurement of a measurement item of a biological sample, the measurement system including a quantitative sample adjustment criterion storage section that stores a quantitative sample adjustment criterion corresponding to a qualitative measurement result in the qualitative measurement, a determination section that determines a proper quantitative sample adjustment condition by referring to the quantitative sample adjustment criterion to determine necessity to change the quantitative sample adjustment condition based on the qualitative measurement result, and an adjustment section that adjusts the biological sample based on the quantitative sample adjustment condition determined by the determination section.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 20, 2016
    Applicant: Arkray, Inc.
    Inventor: Shinya NAKAJIMA
  • Publication number: 20160305971
    Abstract: An object of the present invention is to provide a biological sample measurement device having a high throughput obtained by being capable of early determining whether or not change of a washing condition is necessary. Provided is a biological sample measurement device including a measurement section that performs measurement of a biological sample, and a washing section that washes a biological sample contact portion, the biological sample contact portion contacting the biological sample during the measurement, the biological sample measurement device further including a characteristic judgment portion that judges a characteristic of the biological sample before the measurement by the measurement section is completed, and a washing control section that determines a washing method by the washing section based on the characteristic judged by the characteristic judgment section.
    Type: Application
    Filed: April 6, 2016
    Publication date: October 20, 2016
    Applicant: Arkray, Inc.
    Inventor: Shinya NAKAJIMA
  • Patent number: 9176049
    Abstract: A method for analyzing a sample includes the step of irradiating a reaction portion of a sample BL and a reagent 40 in a reaction cell 34A of an analysis unit with light to obtain data D0 indicating optical characteristics of this portion. The method further includes the steps of irradiating a reference cell 34B which is not provided with a reagent 40 with light in a state in which the sample BL is supplied to the cell to obtain reference data D1 indicating optical characteristics of this portion, irradiating a base portion 34C of the analysis unit with light to obtain reference data D2 indicating optical characteristics of this portion, and obtaining data D3 indicating optical characteristics of the sample BL before reaction with the reagent 40 based on the reference data D1 and D2.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: November 3, 2015
    Assignee: Arkray Inc
    Inventors: Koji Fujimoto, Kotaro Shinozaki, Shigeru Kitamura
  • Patent number: 9063077
    Abstract: This aims to provide an analyzing tool including a substrate, a first electrode formed on the substrate and having an action pole, a second electrode formed on the substrate and having an opposed pole, and a first regulating element for regulating such a contact area in the action pole as to contact a specimen. The analyzing tool further comprises second regulating elements for regulating the effective area for electron transfers in at least one of the action pole and the opposed pole.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 23, 2015
    Assignee: Arkray, Inc.
    Inventors: Tomohiro Fujii, Yasuhide Kusaka
  • Patent number: 9012619
    Abstract: Detection probes are provided that are capable of detecting a sequence to be detected containing a mutation even when a sequence not to be detected containing no mutation coexists with the sequence to be detected containing a mutation, which are different only in a single base from each other. At least one oligonucleotide selected from the group consisting of SEQ ID NOs: 2˜16 is used as a probe. Even in a sample containing an abl gene in which a mutation has occurred and an abl gene in which no mutation has occurred, the use of such probes in, for example, Tm analysis allows the mutation to be detected.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: April 21, 2015
    Assignee: Arkray, Inc.
    Inventors: Mitsuharu Hirai, Satoshi Majima, Taira Maekawa, Shinya Kimura
  • Patent number: 8993344
    Abstract: Provided is a prozone phenomenon detecting method, by which generation of a prozone phenomenon can be detected even when a conventional specimen analysis tool is used, and examinations using an immunochromatography method and the like can be performed efficiently.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: March 31, 2015
    Assignee: Arkray, Inc.
    Inventors: Hironori Hasegawa, Kyouichi Ohshiro, Satoshi Fukunaga
  • Patent number: 8939373
    Abstract: An information acquisition device 10 includes a data acquisition unit 11 acquiring measurement data from an external measuring device 20; a code reading unit 12 reading a code to acquire the information represented by the code; and a data processing unit 13 that associates the information acquired by the code reading unit 12 with the measurement data acquired by the data acquisition unit 11. Medical measuring devices used to measure patient status can be suggested as the measuring device 20. In such a case, for example, codes representing identifiers that identify patients can be used as the code.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: January 27, 2015
    Assignee: Arkray, Inc.
    Inventors: Yutaka Kawabata, Fumito Hiramura
  • Patent number: 8923946
    Abstract: A monitoring device which measures numerical value information on a subject substance in a body fluid has an electrochemical sensor including a sensor unit for detecting the subject substance which is used in the way of being embedded subcutaneously and generating an electric signal correlating to the numerical value information on the subject substance, and a temperature control unit which adjusts the detected ambient temperature as a temperature ambient to a sensor unit when detecting the subject substance so as to reach a target setting temperature when measuring the subject substance.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 30, 2014
    Assignee: Arkray, Inc.
    Inventor: Koji Katsuki
  • Patent number: 8877910
    Abstract: The present invention relates to probes which detect a polymorphism(s) in exon 12 of the NPM1 gene, a kit therefor, and the method of detecting the polymorphism(s) thereof.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 4, 2014
    Assignee: Arkray, Inc.
    Inventor: Toshiya Hosomi
  • Patent number: 8801740
    Abstract: A lancing device (A) includes a lancing adjustment mechanism for adjusting the lancing depth of a lancet (L) into a target portion (99) by operating an operation member (20c). The lancing adjustment mechanism is designed to provide a nonlinear relationship between the lancing depth of the lancet (L) into the target portion (99) and the operation amount of the operation member (20c). With this arrangement, it is possible to suitably adjust bleeding at the lanced portion, thereby improving the operationality of the lancing device (A).
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: August 12, 2014
    Assignee: Arkray, Inc.
    Inventors: Masufumi Koike, Masahiro Fukuzawa
  • Patent number: 8784624
    Abstract: The present invention relates to an enzyme electrode including: a carbon particle; a metal particle held on the carbon particle, the metal particle having a catalytic activity against a redox reaction; a redox enzyme. The enzyme electrode of the present invention further includes a high-resistance particle enhancing an electrical resistance, the high-resistance particle being chemically stable. The high-resistance particle contains an inorganic substance, for example. The inorganic substance is aluminum oxide or smectite, for example.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 22, 2014
    Assignee: Arkray, Inc.
    Inventors: Koji Katsuki, Konomu Hirao, Kenji Nagakawa, Masashi Okamoto, Yoshiaki Fujinawa
  • Patent number: 8784748
    Abstract: A dry test strip for measuring calcium is comprising a support, a reagent layer provided on the support, and a reagent holding layer provided on the reagent layer, and containing, as reagents, o-cresolphthalene complexone, a magnesium selective masking agent, and a pH buffer for adjusting the pH of the environment for reaction of the o-cresolphthalene complexone with calcium to 10.0-11.0, wherein such reagents are present in either the reagent layer or the reagent holding layer or the both layers.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: July 22, 2014
    Assignee: Arkray, Inc.
    Inventor: Tsutomu Nakamura
  • Patent number: 8760178
    Abstract: [Object] To provide a method for measuring a target component in an erythrocyte-containing specimen with high reliability while suppressing the influence of the Ht value of the specimen. [Solution to Problem] In the measurement method of the present invention, first, prior to measurement, a relationship between amounts of the target component and a plurality of signals corresponding thereto is provided. Then, a plurality of signals derived from the target component in the erythrocyte-containing specimen are acquired with a biosensor. With reference to the relationship, the amount of the target component in the specimen is determined based on the thus-acquired plurality of signals.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: June 24, 2014
    Assignee: Arkray, Inc.
    Inventor: John James Rippeth
  • Patent number: 8758997
    Abstract: A probe for detecting a polymorphism at position ?1639 of the VKORC1 gene, the probe comprising an oligonucleotide having a nucleotide sequence having a length of 10 to 50 nucleotides, which nucleotide sequence comprises the nucleotides 80 to 89 of SEQ ID NO:1 or 2 and has a homology to SEQ ID NO:1 or 2 except that the nucleotide corresponding to the nucleotide at position 80 in SEQ ID NO:1 or 2 is cytosine, which nucleotide corresponding to the nucleotide at position 80 is labeled with a fluorescent dye.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 24, 2014
    Assignee: Arkray, Inc.
    Inventor: Mariko Komori
  • Patent number: D700342
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 25, 2014
    Assignee: Arkray, Inc.
    Inventor: Fumito Hiramura
  • Patent number: D724224
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 10, 2015
    Assignee: Arkray, Inc.
    Inventors: Hisashi Nishiyama, Yeongkyu Yoo, Youngduk Song, Sunman Kwon