Patents by Inventor Chikashi OTA

Chikashi OTA 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: 20240115874
    Abstract: An endoscope system includes: a light source configured to emit white light having wavelength distribution of white color; an optical element configured to block at least light emitted from the light source, the at least light having wavelength band corresponding to a light absorption band with a highest peak from among light absorption bands of a medicinal substance used in phototherapy; an imaging element configured to perform imaging based on a light component which has passed through the optical element; and an image processor configured to process imaging signal obtained as a result of imaging performed by the imaging element, and generate an image.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Chikashi OTA
  • Publication number: 20230371817
    Abstract: An endoscope system according to the present invention includes: an illumination light source that emits illumination light for illuminating an object; a therapeutic light source that emits therapeutic light for causing a photoreactive reagent accumulated in a treatment target site to react; a guide light source that emits guide light having a wavelength shorter than a wavelength band of the therapeutic light source; an imager that captures an optical image, the imager including an optical filter that cuts light in the wavelength band of the therapeutic light and transmits a part of white light, the guide light, and fluorescence emitted by the reagent; a controller that controls emission timings of the illumination light source, the therapeutic light source, and the guide light source; and an image processor that generates an image on the basis of an optical image obtained by light emitted from the illumination light source, the therapeutic light source, and the guide light source, in which the controller cau
    Type: Application
    Filed: October 24, 2022
    Publication date: November 23, 2023
    Applicant: OLYMPUS CORPORATION
    Inventors: Masaru MIZUNAKA, Yasunobu IGA, Takeshi SUGA, Chikashi OTA
  • Publication number: 20230347169
    Abstract: A phototherapy device includes: a treatment light emitter configured to emit treatment light for causing a reaction of a drug; a first imager configured to obtain a tissue structure image which is formed using narrow band light applied onto an application position of the treatment light; a second imager configured to obtain a fluorescence image which is formed using excitation light applied onto the application position of the treatment light; a boundary region calculator configured to refer to the tissue structure image to determine a boundary region in which a tissue structure has changed; a fluorescence intensity variation calculator configured to calculate magnitude of variation in fluorescence intensity of the boundary region; and a display image generator configured to generate a display image to be used for displaying the magnitude of variation of the fluorescence intensity.
    Type: Application
    Filed: July 11, 2023
    Publication date: November 2, 2023
    Applicant: OLYMPUS CORPORATION
    Inventor: Chikashi OTA
  • Patent number: 11442014
    Abstract: Provided is a spectroscopic analysis apparatus including: an optical probe; and a spectroscopic analysis portion to which the optical probe is attached. The optical probe includes an optical fiber that guides illumination light coming from a light source and signal light coming from an observation target and an optical member that is disposed at least at a distal end of the optical fiber. The spectroscopic analysis portion includes an information separation portion that generates wavelength dependent characteristics by optically dispersing the signal light and that separates, from information about the signal light, information about first return light returning from the optical member and information about second return light returning from the optical fiber, a problem determining portion that determines a problem occurring at the optical probe based on the separated first return light and second return light, and a notification portion that notifies information about the determined problem.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: September 13, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Shoichi Kaneko, Akira Sato, Chikashi Ota
  • Publication number: 20210190686
    Abstract: Provided is a spectroscopic analysis apparatus including: an optical probe; and a spectroscopic analysis portion to which the optical probe is attached. The optical probe includes an optical fiber that guides illumination light coming from a light source and signal light coming from an observation target and an optical member that is disposed at least at a distal end of the optical fiber. The spectroscopic analysis portion includes an information separation portion that generates wavelength dependent characteristics by optically dispersing the signal light and that separates, from information about the signal light, information about first return light returning from the optical member and information about second return light returning from the optical fiber, a problem determining portion that determines a problem occurring at the optical probe based on the separated first return light and second return light, and a notification portion that notifies information about the determined problem.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 24, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Shoichi KANEKO, Akira SATO, Chikashi OTA
  • Patent number: 10794831
    Abstract: An organic compound analyzer is provided which is capable of highly accurately determining a denaturation feature point on which a minute structural change of an organic compound is reflected. The organic compound analyzer includes an actual measured data storage section, an evaluation criterion vector setting section, a score calculation section, and a change feature point determination section. The actual measured data storage section is configured to store in pairs a plurality of actual measured spectra obtained through measurement of a sample containing an organic compound under a plurality of different external stimulus conditions, and external stimulus conditions under which spectra are respectively measured. The evaluation criterion vector setting section is configured to set a loading that indicates weighting to individual wavenumbers at which the spectra are measured.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: October 6, 2020
    Assignee: HORIBA, LTD.
    Inventor: Chikashi Ota
  • Publication number: 20190204230
    Abstract: An organic compound analyzer is provided which is capable of highly accurately determining a denaturation feature point on which a minute structural change of an organic compound is reflected. The organic compound analyzer includes an actual measured data storage section, an evaluation criterion vector setting section, a score calculation section, and a change feature point determination section. The actual measured data storage section is configured to store in pairs a plurality of actual measured spectra obtained through measurement of a sample containing an organic compound under a plurality of different external stimulus conditions, and external stimulus conditions under which spectra are respectively measured. The evaluation criterion vector setting section is configured to set a loading that indicates weighting to individual wavenumbers at which the spectra are measured.
    Type: Application
    Filed: August 8, 2017
    Publication date: July 4, 2019
    Inventor: Chikashi OTA
  • Publication number: 20190034597
    Abstract: Raman spectra of protein solutions having a plurality of concentrations are acquired. An index, which changes according to interaction between protein molecules, is calculated based on a predetermined peak included in the Raman spectra. A threshold of concentration at which protein can be denatured is specified based on change in the index against change in concentration. The threshold is compared with a concentration of the protein solution required as medicine such as antibody drug, and whether the protein solution is suitable as medicine or not is determined. When the concentration required as medicine is equal to or higher than the threshold, for example, it is judged that the protein solution is not suitable as medicine. When the protein solution is not suitable as medicine, analysis can be repeated by changing a condition of the protein solution.
    Type: Application
    Filed: June 21, 2016
    Publication date: January 31, 2019
    Inventors: Kouhei TSUMOTO, Chikashi OTA, Shintaro NOGUCHI