Patents by Inventor Daiki Mizuoka

Daiki Mizuoka 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: 11635405
    Abstract: Provided is a method for measuring a component of a biological sample with a biosensor provided with: a capillary for introducing the biological sample; an electrode part including a first electrode system that includes a first working electrode and a first counter electrode in the capillary; and a reagent part disposed so as to be in contact with the electrode part, the reagent part containing an enzyme and a mediator, and the method including a step of starting voltage application for a duration longer than 0 second and up to 0.7 second to the first electrode system within 0 second to 0.5 second after detection of the introduction of the biological sample to obtain a hematocrit value based on a current value obtained thereby.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 25, 2023
    Assignee: PHC Holdings Corporation
    Inventors: Shouko Hironaka, Eriko Yoshioka, Daiki Mizuoka, Suguru Sasaki
  • Publication number: 20210247346
    Abstract: Provided is a method for measuring a component of a biological sample with a biosensor provided with: a capillary for introducing the biological sample; an electrode part including a first electrode system that includes a first working electrode and a first counter electrode in the capillary; and a reagent part disposed so as to be in contact with the electrode part, the reagent part containing an enzyme and a mediator, and the method including a step of starting voltage application for a duration longer than 0 second and up to 0.7 second to the first electrode system within 0 second to 0.5 second after detection of the introduction of the biological sample to obtain a hematocrit value based on a current value obtained thereby.
    Type: Application
    Filed: April 1, 2021
    Publication date: August 12, 2021
    Inventors: Shouko HIRONAKA, Eriko YOSHIOKA, Daiki MIZUOKA, Suguru SASAKI
  • Patent number: 10996186
    Abstract: Provided is a method for measuring a component of a biological sample with a biosensor provided with: a capillary for introducing the biological sample; an electrode part including a first electrode system that includes a first working electrode and a first counter electrode in the capillary; and a reagent part disposed so as to be in contact with the electrode part, the reagent part containing an enzyme and a mediator, and the method including a step of starting voltage application for a duration longer than 0 second and up to 0.7 second to the first electrode system within 0 second to 0.5 second after detection of the introduction of the biological sample to obtain a hematocrit value based on a current value obtained thereby.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 4, 2021
    Assignee: PHC Holdings Corporation
    Inventors: Shouko Hironaka, Eriko Yoshioka, Daiki Mizuoka, Suguru Sasaki
  • Patent number: 10775331
    Abstract: In a biological information measurement device, the ingress of biological sample is detected even when a sensor is mounted, which reduces measurement error. The biological information measurement device comprises a voltage supply component that supplies voltage between first and second connectors, between second and third connectors, and between first and third connectors, a current measurement component that measures a first current that flows between the first and second connectors, a second current that flows between the second and third connectors, and a third current that flows between the first and third connectors, and a controller that is connected to the current measurement component and the voltage supply component. The controller compares two or more of the currents and thereby determines whether a foreign substance has adhered between two or more connectors out of the first, second, and third connectors.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 15, 2020
    Assignee: PHC HOLDINGS CORPORATION
    Inventors: Mamiko Ochi, Takashi Miki, Daiki Mizuoka
  • Publication number: 20200057016
    Abstract: Provided is a method for measuring a component of a biological sample with a biosensor provided with: a capillary for introducing the biological sample; an electrode part including a first electrode system that includes a first working electrode and a first counter electrode in the capillary; and a reagent part disposed so as to be in contact with the electrode part, the reagent part containing an enzyme and a mediator, and the method including a step of starting voltage application for a duration longer than 0 second and up to 0.7 second to the first electrode system within 0 second to 0.5 second after detection of the introduction of the biological sample to obtain a hematocrit value based on a current value obtained thereby.
    Type: Application
    Filed: November 22, 2017
    Publication date: February 20, 2020
    Inventors: Shouko HIRONAKA, Eriko YOSHIOKA, Daiki MIZUOKA, Suguru SASAKI
  • Publication number: 20170269013
    Abstract: In a biological information measurement device, the ingress of biological sample is detected even when a sensor is mounted, which reduces measurement error. The biological information measurement device comprises a voltage supply component that supplies voltage between first and second connectors, between second and third connectors, and between first and third connectors, a current measurement component that measures a first current that flows between the first and second connectors, a second current that flows between the second and third connectors, and a third current that flows between the first and third connectors, and a controller that is connected to the current measurement component and the voltage supply component. The controller compares two or more of the currents and thereby determines whether a foreign substance has adhered between two or more connectors out of the first, second, and third connectors.
    Type: Application
    Filed: May 23, 2017
    Publication date: September 21, 2017
    Inventors: Mamiko OCHI, Takashi MIKI, Daiki MIZUOKA
  • Patent number: 9316649
    Abstract: With this biological sample measuring device, the determination section performs measurement at specific intervals in a first measurement period from the start of measurement until a first time, and performs measurement at specific intervals in a second measurement period that comes after the first measurement period, calculates the difference between the measurement values in corresponding specific periods, and finds a plurality of first difference determination values, on the basis of a plurality of current values measured in the first measurement period and a plurality of current values measured in the second measurement period, finds a second difference determination value by finding the difference at specific intervals in the plurality of first difference determination values, and determines whether or not a reagent movement error and/or exposure error of the biological sample measurement sensor has occurred, on the basis of the first and second difference determination values.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: April 19, 2016
    Assignee: Panasonic Healthcare Holdings Co., Ltd.
    Inventors: Daiki Mizuoka, Hiroyuki Tokunaga, Tsuyoshi Takahashi
  • Publication number: 20150241371
    Abstract: In a biological information measurement device, the ingress of biological sample is detected even when a sensor is mounted, which reduces measurement error. The biological information measurement device comprises a voltage supply component that supplies voltage between first and second connectors, between second and third connectors, and between first and third connectors, a current measurement component that measures a first current that flows between the first and second connectors, a second current that flows between the second and third connectors, and a third current that flows between the first and third connectors, and a controller that is connected to the current measurement component and the voltage supply component. The controller compares two or more of the currents and thereby determines whether a foreign substance has adhered between two or more connectors out of the first, second, and third connectors.
    Type: Application
    Filed: November 28, 2013
    Publication date: August 27, 2015
    Inventors: Mamiko Ochi, Takashi Miki, Daiki Mizuoka
  • Publication number: 20140360900
    Abstract: A package-type carrier, wherein a packaged object that is a biosensor can be easily taken out of the package-type carrier and attached to a measuring device without touching the packaged object. A package-type carrier has an unsealed portion outside a sealed portion and near a connection electrode of a biosensor, and has, at the end of or near the unsealed portion, a leading end processed portion such that a space is provided in a portion between an upper cover and a lower cover of the package-type carrier.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 11, 2014
    Inventors: Daiki Mizuoka, Tsuyoshi Takahashi, Hiroyuki Hamamoto, Akihisa Higashihara, Hiroyuki Tokunaga
  • Publication number: 20130337571
    Abstract: With this biological sample measuring device, the determination section performs measurement at specific intervals in a first measurement period from the start of measurement until a first time, and performs measurement at specific intervals in a second measurement period that comes after the first measurement period, calculates the difference between the measurement values in corresponding specific periods, and finds a plurality of first difference determination values, on the basis of a plurality of current values measured in the first measurement period and a plurality of current values measured in the second measurement period, finds a second difference determination value by finding the difference at specific intervals in the plurality of first difference determination values, and determines whether or not a reagent movement error and/or exposure error of the biological sample measurement sensor has occurred, on the basis of the first and second difference determination values.
    Type: Application
    Filed: May 10, 2012
    Publication date: December 19, 2013
    Inventors: Daiki Mizuoka, Hiroyuki Tokunaga, Tsuyoshi Takahashi