ARKRAY Inc.

Kyoto, Japan

ARKRAY Inc.

Kyoto, Japan
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Patent
ARKRAY Inc., Ultizyme International Ltd. and Tanaka Kikinzoku Kogyo K.K. | Date: 2017-02-15

A measuring method of measuring a concentration of a target ingredient in a sample by using a sensor including an interdigitated array electrode that includes a first electrode having a first comb tooth and a second electrode having a second comb tooth, and a reagent layer on the interdigitated array electrode, in which the first comb tooth and the second comb tooth are alternately arrayed, themeasuringmethodincluding: astepofapplyingavoltage to between the first electrode and the second electrode; a step of measuring a first current value of an electric current flowing between the first electrode and the second electrode; a step of measuring a second current value of the current flowing between the first electrode and the second electrode; a step of calculating the concentration of the target ingredient in the sample, based on a third current value; a step of calculating a correction value, based on the first current value and the second current value; and a step of correcting the concentration of the target ingredient in the sample, based on the correction value.


Patent
Kyoto University and ARKRAY Inc. | Date: 2017-01-04

Provided is a radioactive labeled compound that can detect a secondary mutation of an epidermal growth factor receptor and which is a compound represented by Formula (1) described below or a pharmaceutically acceptable salt thereof. In Formula (1), L_(1) is an alkanediyl group having 1 to 5 carbon atoms or an alkenediyl carbonyl group having 3 to 8 carbon atoms, R_(1) is a radioactive halogen atom, or 5- to 7-membered monocyclic nitrogen-containing heterocycloalkyl that may have one substituent, R_(2) is a 6- to 8-membered aryl group or nitrogen-containing heteroaryl group with one substituent, R_(1) or R_(2) contains a radioactive halogen atom or a radioactive carbon atom (^(11)C), and Y is -NH- or -O-.


Patent
Kyoto University and ARKRAY Inc. | Date: 2017-01-04

Provided is a radioactive labeled compound that can detect a secondary mutation of an epidermal growth factor receptor and which is a compound represented by Formula (1) or a pharmaceutically acceptable salt thereof. In Formula (1), R_(1) is a group represented by Formula (a), (b) or (c), R_(2) is a group represented by Formula (d) or (e), and Y is -NH- or -O-.


Patent
ARKRAY Inc. and Ultizyme International Ltd. | Date: 2017-05-03

The present invention provides a mutant-type glucose dehydrogenase having glucose dehydrogenase activity and having decreased reactivity with xylose, wherein said mutant-type glucose dehydrogenase comprises a mutant-type -subunit comprising an amino acid sequence of 520 to 550 amino acids containing the following peptide sequences (i) to (v) in this order, except that one or more amino acid residue(s) selected from the group consisting of the glycine at position 10 in the peptide sequence (iii), the histidine at position 4 in the peptide sequence (iv), and the asparagine at position 4 in the peptide sequence (v) is/are substituted with another/other amino acid(s):(i) Val/Ile Val/Ile Val/Ile Gly Ser Gly Val Ala Gly (SEQ ID NO:21);(ii) Cys Cys Gly Asn Asn Asn Cys Met Pro Ile Cys (SEQ ID NO:22);(iii) Val Gly Arg Asn Leu Met Asp His Pro Gly Thr Gly (SEQ ID NO:23);(iv) Lys Lys Ile/Leu His Leu Ser Asn (SEQ ID NO:24);(v) Phe Ala Pro/Asn Asn Asn His Ile (SEQ ID NO:25).


Patent
ARKRAY Inc. | Date: 2017-05-03

Provided is a blood measuring apparatus including: a spectroscope (1); an optical system (2) configured to irradiate a living body with excitation light from a light source (10), and to guide, to the spectroscope (1), Raman scattered light from the living body; a control unit (3) configured to adjust an irradiation position at which the living body is irradiated with the excitation light by the optical system (2); and a detector (4) configured to detect a spectrum of the Raman scattered light using light of each wavelength dispersed by the spectroscope (1). A plurality of the spectra detected by the detector (4) are integrated, and numerical value information regarding a substance included in blood of the living body is measured based on an integration result, and the control unit (3) adjusts the irradiation position such that the plurality of spectra are detected at changed positions.


Patent
ARKRAY Inc. and Ultizyme International Ltd. | Date: 2017-04-19

A biosensor includes: a working electrode; a counter electrode; a reference electrode; and a detection layer contacting the working electrode and containing a crosslinking agent, an electrically conductive polymer, and an enzyme transferring and receiving electrons to and from the working electrode, the reference electrode being a polarized electrode.


Patent
ARKRAY Inc. and Ultizyme International Ltd. | Date: 2017-04-19

A biosensor includes a plurality of electrodes including a working electrode, and a detection layer containing an enzyme for exchanging electrons with the working electrode, a crosslinking agent and an electrically conductive polymer and having a contact area with the working electrode defined by a predetermined area.


Patent
ARKRAY Inc. and Ultizyme International Ltd. | Date: 2017-04-19

A biosensor includes a plurality of electrodes including a working electrode, and a detection layer which is immobilized on the working electrode and contains a crosslinking agent, an electrically conductive macromolecule and an enzyme transferring and receiving electrons to and from the working electrode. The working electrode is in an open system.


A test result sheet creation device is provided with: a display unit which displays a test result of a saliva test, and a plurality of comment candidates corresponding to the test result; an input unit which accepts an input of the result of selection from the plurality of comment candidates; and a control unit which associates and stores, in a storage unit, at least one test result and a comment selected from the comment candidates, and creates a test result sheet including the at least one test result and the comment selected from the comment candidates.


Patent
ARKRAY Inc. and Ultizyme International Ltd. | Date: 2017-04-19

An enzyme electrode including an electrode, and a detection layer which contacts the electrode and contains a crosslinking agent, an electrically conductive macromolecule and an enzyme transferring and receiving electrons to and from the electrode and does not contain an electron transfer subunit.

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