Patents by Inventor Yuki KURAHASHI

Yuki KURAHASHI 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).

  • Publication number: 20240091247
    Abstract: The present invention relates to an inhibitor against the stem cells of chronic myeloid leukemia (CML), a pharmaceutical composition for the treatment of CML having preventive effect on CML recurrence, a method of preventing CML recurrence, and a method of assessing the efficacy of treatment with a drug in a patient with CML, including a step of determining the expression level of latexin.
    Type: Application
    Filed: February 21, 2022
    Publication date: March 21, 2024
    Inventors: Yuki Kurahashi, Shinya Kimura, Tatsuro Watanabe, Yuta Yamamoto, Hiroshi Ureshino, Kazuharu Kamachi
  • Publication number: 20230193350
    Abstract: The present invention provides: a method for identifying a blood cancer patient who may benefit from a monotherapy using a drug comprising a DNA methyl transferase inhibitor and a combination therapy using the aforesaid drug together with another epigenetic controller; a pharmaceutical composition to be used in treating a patient who has been identified or selected by the method; and a kit for identifying such a patient. More particularly, the aforesaid method comprises a step for measuring the expression amount of DUSP5 in a sample obtained from a blood cancer patient. When the expression amount measured in this step is lower than a reference expression amount of DUSP5, then the patient is identified or selected as a blood cancer patient who may benefit from a treatment using the drug comprising a DNA methyl transferase inhibitor.
    Type: Application
    Filed: June 11, 2021
    Publication date: June 22, 2023
    Inventors: Yuki Kurahashi, Magoichi Sako, Hiroo Wakita, Shinya Kimura, Tatsuro Watanabe, Yuta Yamamoto
  • Patent number: 11638072
    Abstract: An image detection device includes: a liquid resonant lens system whose focal point is cyclically changed; an image detector configured to detect an image of an object through the lens system; a pulsed illuminator configured to provide pulsed illumination to the object in synchronization with the focal point; and an illumination controller configured to control the pulsed illuminator, in which the pulsed illuminator includes a main illumination section and a supplementary illumination section, and the illumination controller is configured to provide pulsed illumination to the object with the main illumination section and supplement illuminance on the object with the supplementary illumination section when the illuminance on the object by the main illumination section is equal to or less than a predetermined threshold.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: April 25, 2023
    Assignee: MITUTOYO CORPORATION
    Inventors: Raiitsu Suzuki, Yuki Kurahashi
  • Patent number: 11543642
    Abstract: A variable focal length lens device includes: a variable focal length lens whose focal length cyclically changes in accordance with an inputted drive signal; an image detector configured to detect an image of a measurement target through the variable focal length lens; a pulsed light illuminator configured to emit a pulsed light to illuminate the measurement target; and an illumination controller configured to control the pulsed light illuminator so that the pulsed light is emitted twice in one cycle of the drive signal based on two detection phases corresponding to a designated focal distance of the variable focal length lens.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: January 3, 2023
    Assignee: MITUTOYO CORPORATION
    Inventor: Yuki Kurahashi
  • Patent number: 11523042
    Abstract: An image detection device includes a liquid resonant lens system whose focal point is cyclically changeable; an image detector configured to detect a detection image in a to-be-imaged region through the lens system; a pulsed illuminator configured to emit pulsed light on the to-be-imaged region in synchronization with the focal point; and an illumination controller configured to increase or decrease an illumination duration of the pulsed illuminator depending on a required light volume of the to-be-imaged region at the focal point where the pulsed illuminator emits pulsed light.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 6, 2022
    Assignee: MITUTOYO CORPORATION
    Inventor: Yuki Kurahashi
  • Publication number: 20220347197
    Abstract: [Problems] The object is to provide a compound as a therapeutic or prophylactic agent for TKI-resistant CML to replace the injection “Dacogen®” which has been clinically used as a therapeutic agent for high-risk myelodysplastic syndrome and acute myeloid leukemia. The said compound has remarkable stability against cytidine deaminase, a hydrolytic enzyme, and is absorbed in vivo even by oral administration, incorporated into the biosynthesis route of nucleic acid, and exhibits the effect of inhibiting DNA methyltransferase (DNMT).
    Type: Application
    Filed: September 24, 2020
    Publication date: November 3, 2022
    Inventors: Magoichi Sako, Yuki Kurahashi, Shinya Kimura, Tatsuro Watanabe, Hiroshi Ureshino, Kazuharu Kamachi
  • Patent number: 11474285
    Abstract: A variable focal length lens device includes: a lens system of a liquid resonant type whose refractive index is changed in response to a drive signal to be inputted; a temperature sensor configured to acquire temperature information of the lens system; and a drive controller configured to control the lens system. The drive controller includes: a resonant frequency estimation unit configured to calculate an estimated value of a resonant frequency of the lens system on a basis of the temperature information; and a starting frequency setting unit configured to set a starting frequency of the lens system on a basis of the estimated value of the resonant frequency.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: October 18, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Shiro Igasaki, Yuki Kurahashi
  • Patent number: 11215739
    Abstract: A variable focal length lens apparatus includes a liquid lens apparatus in which the refractive index changes in accordance with an input drive signal, and a refractive power controller that controls refractive power of the lens system. The refractive power controller adjusts the voltage of the drive signal in accordance with effective power that is supplied to the liquid lens apparatus.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 4, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Shiro Igasaki, Nobuo Ooba, Masaki Okayasu, Yuki Kurahashi
  • Patent number: 11193757
    Abstract: An image measurement apparatus, which functions as a non-contact profile-measuring device, includes: an image sensor as an image pick-up device; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from a workpiece to the image sensor; and a controller (image-pickup lens controller and image measurement processor) configured to control the variable focal length lens and process a detected image by the image sensor. The image measurement apparatus, which also functions as a non-contact displacement-detecting device, includes: an image sensor; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from the workpiece to the image sensor; and a controller (displacement-detection lens controller and profile measurement processor) configured to control the variable focal length lens and a detected image by the image sensor.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: December 7, 2021
    Assignee: MITUTOYO CORPORATION
    Inventors: Satoru Yoshida, Tatsuya Nagahama, Masafumi Yamanaka, Hitoshi Isobe, Naoto Oita, Koji Kubo, Yuko Shishido, Nobuo Ohba, Takahisa Ootake, Hiroki Matsui, Masanori Arai, Shiro Igasaki, Yuki Kurahashi, Hiroshi Sakai, Yutaka Watanabe
  • Publication number: 20210173129
    Abstract: A variable focal length lens device includes: a lens system of a liquid resonant type whose refractive index is changed in response to a drive signal to be inputted; a temperature sensor configured to acquire temperature information of the lens system; and a drive controller configured to control the lens system. The drive controller includes: a resonant frequency estimation unit configured to calculate an estimated value of a resonant frequency of the lens system on a basis of the temperature information; and a starting frequency setting unit configured to set a starting frequency of the lens system on a basis of the estimated value of the resonant frequency.
    Type: Application
    Filed: January 5, 2021
    Publication date: June 10, 2021
    Applicant: MITUTOYO CORPORATION
    Inventors: Shiro IGASAKI, Yuki KURAHASHI
  • Publication number: 20210109336
    Abstract: A variable focal length lens device includes: a variable focal length lens whose focal length cyclically changes in accordance with an inputted drive signal; an image detector configured to detect an image of a measurement target through the variable focal length lens; a pulsed light illuminator configured to emit a pulsed light to illuminate the measurement target; and an illumination controller configured to control the pulsed light illuminator so that the pulsed light is emitted twice in one cycle of the drive signal based on two detection phases corresponding to a designated focal distance of the variable focal length lens.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Applicant: MITUTOYO CORPORATION
    Inventor: Yuki KURAHASHI
  • Publication number: 20210075951
    Abstract: An image detection device includes: a liquid resonant lens system whose focal point is cyclically changed; an image detector configured to detect an image of an object through the lens system; a pulsed illuminator configured to provide pulsed illumination to the object in synchronization with the focal point; and an illumination controller configured to control the pulsed illuminator, in which the pulsed illuminator includes a main illumination section and a supplementary illumination section, and the illumination controller is configured to provide pulsed illumination to the object with the main illumination section and supplement illuminance on the object with the supplementary illumination section when the illuminance on the object by the main illumination section is equal to or less than a predetermined threshold.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Applicant: MITUTOYO CORPORATION
    Inventors: Raiitsu SUZUKI, Yuki KURAHASHI
  • Publication number: 20210075955
    Abstract: An image detection device includes a liquid resonant lens system whose focal point is cyclically changeable; an image detector configured to detect a detection image in a to-be-imaged region through the lens system; a pulsed illuminator configured to emit pulsed light on the to-be-imaged region in synchronization with the focal point; and an illumination controller configured to increase or decrease an illumination duration of the pulsed illuminator depending on a required light volume of the to-be-imaged region at the focal point where the pulsed illuminator emits pulsed light.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Applicant: MITUTOYO CORPORATION
    Inventor: Yuki KURAHASHI
  • Patent number: 10908398
    Abstract: A variable focal length lens device includes: a lens system whose refractive index changes in accordance with an inputted drive signal; and a resonance-lock controller that locks the drive signal to a resonance frequency of the lens system. The resonance-lock controller tunes a frequency of the drive signal to a peak position of a voltage-current phase difference between a voltage of the drive signal and a drive current of the lens system, and raises or lowers the frequency of the drive signal in accordance with the drive current when the voltage-current phase difference changes.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: February 2, 2021
    Assignee: MITUTOYO CORPORATION
    Inventors: Shiro Igasaki, Nobuo Ohba, Yuki Kurahashi
  • Publication number: 20200208965
    Abstract: An image measurement apparatus, which functions as a non-contact profile-measuring device, includes: an image sensor as an image pick-up device; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from a workpiece to the image sensor; and a controller (image-pickup lens controller and image measurement processor) configured to control the variable focal length lens and process a detected image by the image sensor. The image measurement apparatus, which also functions as a non-contact displacement-detecting device, includes: an image sensor; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from the workpiece to the image sensor; and a controller (displacement-detection lens controller and profile measurement processor) configured to control the variable focal length lens and a detected image by the image sensor.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 2, 2020
    Applicant: MITUTOYO CORPORATION
    Inventors: Satoru YOSHIDA, Tatsuya NAGAHAMA, Hitoshi ISOBE, Masafumi YAMANAKA, Naoto OITA, Koji KUBO, Yuko SHISHIDO, Nobuo OHBA, Takahisa OOTAKE, Hiroki MATSUI, Masanori ARAI, Shiro IGASAKI, Yuki KURAHASHI, Hiroshi SAKAI, Yutaka WATANABE
  • Patent number: 10663629
    Abstract: A variable focal length lens apparatus includes a lens system where a refractive index changes in response to an input drive signal; a field lens arranged on the same optical axis as the lens system; an image detector detecting an image of a measured object through the lens system and the field lens; a pulse illuminator providing pulse illumination of the measured object based on an input light emission signal; a temperature sensor detecting temperature information for an interior of the lens system; and a controller outputting the drive signal and the light emission signal in addition to correcting the timing of the light emission signal based on the temperature information.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: May 26, 2020
    Assignee: MITUTOYO CORPORATION
    Inventors: Tatsuya Nagahama, Yuko Shishido, Yuki Kurahashi
  • Publication number: 20200073025
    Abstract: A variable focal length lens apparatus includes a liquid lens apparatus in which the refractive index changes in accordance with an input drive signal, and a refractive power controller that controls refractive power of the lens system. The refractive power controller adjusts the voltage of the drive signal in accordance with effective power that is supplied to the liquid lens apparatus.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Applicant: MITUTOYO CORPORATION
    Inventors: Shiro IGASAKI, Nobuo OOBA, Masaki OKAYASU, Yuki KURAHASHI
  • Patent number: 10119848
    Abstract: A jig includes three columnar members, a stylus head receiving member, and a jig fixation portion. The second columnar member extends in a Z direction. The first columnar member extends in an X direction and is configured as a cantilever beam protruding in the X direction by having a first end of the first columnar member joined to a first end of the second columnar member. The third columnar member extends in the X direction and is configured as a cantilever beam protruding in the same direction as the first columnar member by having a first end of the third columnar member joined to a second end of the second columnar member. The stylus head receiving member is joined to the third columnar member such that a surface where a stylus head at a forefront end of a spindle of a gauge makes contact faces the first columnar member. The jig fixation portion is provided to the first columnar member so as to be attachable to a measurement spindle of the gauge inspection machine.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 6, 2018
    Assignee: MITUTOYO CORPORATION
    Inventors: Yuki Kurahashi, Masaoki Yamagata
  • Publication number: 20180314041
    Abstract: A variable focal length lens device includes: a lens system whose refractive index changes in accordance with an inputted drive signal; and a resonance-lock controller that locks the drive signal to a resonance frequency of the lens system. The resonance-lock controller tunes a frequency of the drive signal to a peak position of a voltage-current phase difference between a voltage of the drive signal and a drive current of the lens system, and raises or lowers the frequency of the drive signal in accordance with the drive current when the voltage-current phase difference changes.
    Type: Application
    Filed: April 6, 2018
    Publication date: November 1, 2018
    Applicant: MITUTOYO CORPORATION
    Inventors: Shiro IGASAKI, Nobuo OHBA, Yuki KURAHASHI
  • Publication number: 20180180774
    Abstract: A variable focal length lens apparatus includes a lens system where a refractive index changes in response to an input drive signal; a field lens arranged on the same optical axis as the lens system; an image detector detecting an image of a measured object through the lens system and the field lens; a pulse illuminator providing pulse illumination of the measured object based on an input light emission signal; a temperature sensor detecting temperature information for an interior of the lens system; and a controller outputting the drive signal and the light emission signal in addition to correcting the timing of the light emission signal based on the temperature information.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 28, 2018
    Applicant: MITUTOYO CORPORATION
    Inventors: Tatsuya NAGAHAMA, Yuko SHISHIDO, Yuki KURAHASHI