Patents by Inventor Masaaki Komatsu

Masaaki Komatsu 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: 11869193
    Abstract: A method includes: inputting an image of a target to each of a first model for estimating a region of an annular face of the target, a second model for estimating a region in an outer circumference of the annular face and a third model for estimating a region in an inner circumference of the annular face, and outputting a region image, as an estimated region of the annular face, the region image being obtained by synthesizing first, second, and third elements. The first element is a region outputted as a result of the first model for calculating a sum set in the synthesizing, the second element is a region outputted as a result of the second model for calculating a sum set in the synthesizing, and the third element is a region outputted as a result of the third model for calculating a difference set in the synthesizing.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 9, 2024
    Assignees: Fujitsu Limited, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira Sakai, Masaaki Komatsu, Kanto Shozu
  • Publication number: 20230374377
    Abstract: The purpose of the present invention is to increase the amount of near-infrared light emitted by a phosphor excited by near-ultraviolet light to blue light. The present invention relates to a phosphor containing gallium oxide Ga2O3 as the base composition, one or two elements selected from Cr and Fe as the light-emitting center, and aluminum fluoride AlF3 as the flux.
    Type: Application
    Filed: August 31, 2021
    Publication date: November 23, 2023
    Inventors: Masaaki KOMATSU, Shin IMAMURA, Yoshifumi SEKIGUCHI, Takahiro ANDO, Eiichiro TAKADA
  • Patent number: 11754493
    Abstract: A broadband light source device in a biochemical analyzing device, and facilitates maintenance thereof, including an LED substrate that is provided with an LED chip generating a light beam having a first wavelength band and including a fluorescent substance in the light beam having a first wavelength band and that is provided with an LED chip generating a light beam having a second wavelength band, in which the fluorescent substance includes at least alumina and at least one of Fe, Cr, Bi, Tl, Ce, Tb, Eu, and Mn and is produced by calcining a raw material that contains sodium at 6.1 to 15.9 wt. % in the whole raw material. The broadband light source device further includes an optical system including a light pipe that color-mixes the light beam passing through the fluorescent substance of the LED chip and the light beam emitted from the LED chip, and a flat dichroic prism.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: September 12, 2023
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Tomoto Kawamura, Takahiro Ando, Shin Imamura, Masaaki Komatsu, Yuya Matsuoka, Takeshi Ishida, Sakuichiro Adachi
  • Patent number: 11676361
    Abstract: A method includes: acquiring data including moving image obtained by photographing a target and annotation images each indicative of a region of the target in each of frame images in the moving image; executing a process using the data. The process includes: detecting the target in the frame images; inputting, to an auto-encoder, an image obtained by combining partial images including the target and peripheral region images of the target detected in a given number of preceding and succeeding second frame images in a time series of the moving image of a first frame image; inputting a partial image corresponding to the first frame image to a neural network performing a segmentation; updating parameter of the auto-encoder and the neural network based on a difference between an image obtained by combining images from the auto-encoder and the neural network and a partial image of the annotation image.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: June 13, 2023
    Assignees: FUJITSU LIMITED, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira Sakai, Masaaki Komatsu, Ai Dozen
  • Publication number: 20220398727
    Abstract: A non-transitory computer-readable recording medium has stored therein an evaluating program for causing a computer to execute a process including: specifying a wall of an inspection target in two or more moving images being obtained by photographing two types of cross sections of the inspection target, the two types of cross sections being orthogonal to each other; evaluating photographing quality of each of a plurality of first divisional regions obtained by dividing a region corresponding to the wall specified in a first image related to a first cross section among the two or more moving images; and evaluating photographing quality of each of a plurality of second divisional regions obtained by dividing a region corresponding to the wall specified in a second image related to a second cross section among the two or more moving images, the second cross section being different from the first cross section.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 15, 2022
    Applicants: FUJITSU LIMITED, RIKEN, National University Corporation Tokyo Medical and Dental University, NATIONAL CANCER CENTER
    Inventors: Akira SAKAI, Masaaki KOMATSU, Tetsuo SASANO, Hideki ARIMA, Ryuji HAMAMOTO
  • Publication number: 20220398728
    Abstract: There is disclosed a non-transitory computer-readable recording medium having stored therein an information processing program for causing a computer to execute a process.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 15, 2022
    Applicants: FUJITSU LIMITED, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira SAKAI, Masaaki KOMATSU, Kanto SHOZU
  • Patent number: 11508064
    Abstract: A method includes: acquiring a training data set including pieces of training data, each of the pieces including an image of a training target, first annotation data representing a rectangular region in the image, and second annotation data; training, based on the image and the first annotation data, an object detection model specifying a rectangular region including the training target; training, based on the image and the second annotation data, a neural network; and calculating a first index value related to a relationship of a pixel number, the trained estimation model and the calculated first index value being used in a determination process that determines, based on the calculated first index value and a second index value relationship between a pixel number in an output result and an estimation result, whether or not a target in a target image is normal.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 22, 2022
    Assignees: FUJITSU LIMITED, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira Sakai, Masaaki Komatsu, Ai Dozen
  • Patent number: 11348757
    Abstract: In order to improve a yield of light generated by a collision between secondary electrons and gas molecules, the invention provides a charged particle beam device including: a charged particle beam source configured to irradiate a sample with a charged particle beam; a sample chamber configured to hold the sample and a gas molecule; a positive electrode configured to form an electric field that accelerates a secondary electron emitted from the sample; a photodetector configured to detect light generated by a collision between the accelerated secondary electron and the gas molecule; and a light condensing unit disposed between the sample and the photodetector, having a light emitting space in which the light is generated, and configured to condense the light generated in the light emitting space on a photodetector side.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: May 31, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Shuhei Yabu, Michio Hatano, Shin Imamura, Masaaki Komatsu
  • Patent number: 11349395
    Abstract: A conversion apparatus includes: a conversion module having plural phases, each including a converter and a sensor, in which the plural phases are electrically connected in parallel, and a controller. The controller includes a first unit for determining a basic duty ratio common to all of the plural phases, so that an input or an output of the conversion module becomes equal to a target voltage or a target current, a second unit for determining a correction duty ratio and correcting the basic duty ratio for each of the plural converters, and a generator for generating the control signal based on the basic duty ratio and the correction duty ratio. The second unit determines the correction duty ratio based on a difference between plural phase currents respectively flowing in the plural converters. The basic duty ratio is equal to or greater than an absolute value of the correction duty ratio.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: May 31, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Hashino, Masaaki Komatsu
  • Patent number: 11291431
    Abstract: A non-transitory computer-readable recording medium stores therein an examination assisting program that causes a computer to execute a process including: performing a site detecting process that uses an object detection technique on each of a plurality of ultrasound examination images taken of an examined subject by performing a scan on the examined subject; and displaying a site detection map in which a detection result of each of a plurality of sites included in the examined subject is kept in correspondence with the scan, on a basis of detection results from the site detecting process.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: April 5, 2022
    Assignees: FUJITSU LIMITED, RIKEN, SHOWA UNIVERSITY, NATIONAL CANCER CENTER
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20210381954
    Abstract: A broadband light source device in a biochemical analyzing device, and facilitates maintenance thereof, including an LED substrate that is provided with an LED chip generating a light beam having a first wavelength band and including a fluorescent substance in the light beam having a first wavelength band and that is provided with an LED chip generating a light beam having a second wavelength band, in which the fluorescent substance includes at least alumina and at least one of Fe, Cr, Bi, Tl, Ce, Tb, Eu, and Mn and is produced by calcining a raw material that contains sodium at 6.1 to 15.9 wt. % in the whole raw material. The broadband light source device further includes an optical system including a light pipe that color-mixes the light beam passing through the fluorescent substance of the LED chip and the light beam emitted from the LED chip, and a flat dichroic prism.
    Type: Application
    Filed: October 9, 2019
    Publication date: December 9, 2021
    Inventors: Tomoto KAWAMURA, Takahiro ANDO, Shin IMAMURA, Masaaki KOMATSU, Yuya MATSUOKA, Takeshi ISHIDA, Sakuichiro ADACHI
  • Publication number: 20210281186
    Abstract: A conversion apparatus includes: a conversion module having plural phases, each including a converter and a sensor, in which the plural phases are electrically connected in parallel, and a controller. The controller includes a first unit for determining a basic duty ratio common to all of the plural phases, so that an input or an output of the conversion module becomes equal to a target voltage or a target current, a second unit for determining a correction duty ratio and correcting the basic duty ratio for each of the plural converters, and a generator for generating the control signal based on the basic duty ratio and the correction duty ratio. The second unit determines the correction duty ratio based on a difference between plural phase currents respectively flowing in the plural converters. The basic duty ratio is equal to or greater than an absolute value of the correction duty ratio.
    Type: Application
    Filed: October 3, 2016
    Publication date: September 9, 2021
    Applicant: Honda Motor Co., Ltd.
    Inventors: Satoshi HASHINO, Masaaki KOMATSU
  • Publication number: 20210272768
    Abstract: In order to improve a yield of light generated by a collision between secondary electrons and gas molecules, the invention provides a charged particle beam device including: a charged particle beam source configured to irradiate a sample with a charged particle beam; a sample chamber configured to hold the sample and a gas molecule; a positive electrode configured to form an electric field that accelerates a secondary electron emitted from the sample; a photodetector configured to detect light generated by a collision between the accelerated secondary electron and the gas molecule; and a light condensing unit disposed between the sample and the photodetector, having a light emitting space in which the light is generated, and configured to condense the light generated in the light emitting space on a photodetector side.
    Type: Application
    Filed: July 19, 2018
    Publication date: September 2, 2021
    Inventors: Shuhei YABU, Michio HATANO, Shin IMAMURA, Masaaki KOMATSU
  • Publication number: 20210253949
    Abstract: The present invention improves the performance of an analyzer and facilitates the maintenance of the analyzer. This fluorescent body is produced by firing a raw material which contains: an alumina; and at least one among Fe, Cr, Bi, Tl, Ce, Tb, Eu, and Mn, wherein the raw material contains 6.1-15.9 wt % of sodium with respect to the total amount of the raw material.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 19, 2021
    Applicant: Hitachi High-Tech Corporation
    Inventors: Masaaki KOMATSU, Shin IMAMURA, Takeshi ISHIDA, Isao YAMAZAKI, Sadamitsu ASO
  • Patent number: 11084910
    Abstract: Provided is a cross-linked rubber that can improve long-term sealing properties of a seal member in high-temperature and high-pressure environments. The cross-linked rubber is obtained through cross-linking of a cross-linkable rubber composition containing a fluororubber, carbon black, one or more carbon nanotubes, and an organic peroxide cross-linker, and has a 50% modulus of 5 MPa or more, a compression set (230° C., 500 hours) of 80% or less, and a rate of change of elongation at break between before and after a heat aging test (230° C., 72 hours) of not less than ?10% and not more than 10%.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: August 10, 2021
    Assignee: ZEON CORPORATION
    Inventors: Masaaki Komatsu, Anna Komatsu, Seisuke Ata, Kenji Hata, Shigeki Tomonoh
  • Publication number: 20210241461
    Abstract: A method includes: inputting an image of a target to each of a first model for estimating a region of an annular face of the target, a second model for estimating a region in an outer circumference of the annular face and a third model for estimating a region in an inner circumference of the annular face, and outputting a region image, as an estimated region of the annular face, the region image being obtained by synthesizing first, second, and third elements. The first element is a region outputted as a result of the first model for calculating a sum set in the synthesizing, the second element is a region outputted as a result of the second model for calculating a sum set in the synthesizing, and the third element is a region outputted as a result of the third model for calculating a difference set in the synthesizing.
    Type: Application
    Filed: January 8, 2021
    Publication date: August 5, 2021
    Applicants: FUJITSU LIMITED, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira SAKAI, Masaaki KOMATSU, Kanto SHOZU
  • Publication number: 20210241452
    Abstract: A method includes: acquiring a training data set including pieces of training data, each of the pieces including an image of a training target, first annotation data representing a rectangular region in the image, and second annotation data; training, based on the image and the first annotation data, an object detection model specifying a rectangular region including the training target; training, based on the image and the second annotation data, a neural network; and calculating a first index value related to a relationship of a pixel number, the trained estimation model and the calculated first index value being used in a determination process that determines, based on the calculated first index value and a second index value relationship between a pixel number in an output result and an estimation result, whether or not a target in a target image is normal.
    Type: Application
    Filed: January 8, 2021
    Publication date: August 5, 2021
    Applicants: FUJITSU LIMITED, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira SAKAI, Masaaki KOMATSU, Ai DOZEN
  • Publication number: 20210241460
    Abstract: A method includes: acquiring data including moving image obtained by photographing a target and annotation images each indicative of a region of the target in each of frame images in the moving image; executing a process using the data. The process includes: detecting the target in the frame images; inputting, to an auto-encoder, an image obtained by combining partial images including the target and peripheral region images of the target detected in a given number of preceding and succeeding second frame images in a time series of the moving image of a first frame image; inputting a partial image corresponding to the first frame image to a neural network performing a segmentation; updating parameter of the auto-encoder and the neural network based on a difference between an image obtained by combining images from the auto-encoder and the neural network and a partial image of the annotation image.
    Type: Application
    Filed: January 8, 2021
    Publication date: August 5, 2021
    Applicants: FUJITSU LIMITED, RIKEN, NATIONAL CANCER CENTER
    Inventors: Akira SAKAI, Masaaki KOMATSU, Ai DOZEN
  • Patent number: 11074681
    Abstract: A non-transitory computer-readable recording medium storing therein an anomalousness determination program that causes a computer to execute a process includes: sensing a region in an object in each of a plurality of ultrasound examination images using an object sensing technique; based on a result of the sensing and a structure of the object, acquiring a result of sensing each of a plurality of regions in the object in each of the ultrasound examination images; and determining anomalousness in the object based on the result of sensing each of the regions in the ultrasound examination images.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: July 27, 2021
    Assignees: FUJITSU LIMITED, RIKEN, SHOWA UNIVERSITY, NATIONAL CANCER CENTER
    Inventors: Masaaki Komatsu, Hiroyuki Yoshida, Akira Sakai, Akihiko Sekizawa, Ryu Matsuoka, Ryuji Hamamoto
  • Publication number: 20200115512
    Abstract: Provided is a cross-linked rubber that can improve long-term sealing properties of a seal member in high-temperature and high-pressure environments. The cross-linked rubber is obtained through cross-linking of a cross-linkable rubber composition containing a fluororubber, carbon black, one or more carbon nanotubes, and an organic peroxide cross-linker, and has a 50% modulus of 5 MPa or more, a compression set (230° C., 500 hours) of 80% or less, and a rate of change of elongation at break between before and after a heat aging test (230° C., 72 hours) of not less than ?10% and not more than 10%.
    Type: Application
    Filed: June 6, 2018
    Publication date: April 16, 2020
    Applicants: ZEON CORPORATION, National Institute of Advanced Industrial Science and Technology
    Inventors: Masaaki KOMATSU, Anna KOMATSU, Seisuke ATA, Kenji HATA, Shigeki TOMONOH