Patents by Inventor Kenji Yoshimoto

Kenji Yoshimoto 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: 11498895
    Abstract: There is provided a process and an apparatus for urea production in which preheating of raw material ammonia or heating in a medium-pressure decomposition step can be performed at a relatively low pressure while preventing decrease in an overall heat transfer coefficient. A process for urea production includes: a synthesis step of generating a urea synthesis solution; a high-pressure decomposition step of heating the urea synthesis solution to separate a gaseous mixture containing ammonia and carbon dioxide from the urea synthesis solution; a condensation step of condensing the gaseous mixture; a medium-low-pressure steam generation step of reducing a pressure of medium-pressure steam condensate obtained in the high-pressure decomposition step to a medium-low pressure to generate medium-low-pressure steam and medium-low-pressure steam condensate; and one or both of a medium-pressure decomposition step and an ammonia preheating step.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: November 15, 2022
    Assignee: TOYO ENGINEERING CORPORATION
    Inventors: Kenji Yoshimoto, Keigo Sasaki
  • Publication number: 20220317036
    Abstract: A phantom design method includes a correction step and a calculation step. In the correction step, an absorption spectrum of a target of spectroscopic measurement by a near infrared spectrometer is corrected based on a refractive index of the target and a refractive index of a resin used as a base material of a phantom to generate a corrected absorption spectrum. In the calculation step, based on an absorption spectrum of the resin and an absorption spectrum of each of N types of dyes, a concentration of each of the N types of dyes to be contained in the base material is calculated such that an absorption spectrum of the phantom constituted by the base material containing the N types of dyes approximates the corrected absorption spectrum in a predetermined wavelength range of a near infrared region.
    Type: Application
    Filed: June 1, 2020
    Publication date: October 6, 2022
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kenji YOSHIMOTO, Yukio UEDA
  • Publication number: 20220176506
    Abstract: A tool storage includes a tool receiver, a tool magazine, and a tool carriage. The tool receiver is provided on a one side of a machine tool with respect to a workpiece holder of the machine tool along a machine tool direction and is configured to receive a tool from an outside of the machine tool. The tool magazine is provided on another side opposite to the one side with respect to the workpiece holder along the machine tool direction. The tool carriage is configured to carry the tool between the tool receiver and the tool magazine.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 9, 2022
    Applicant: Yamazaki Mazak Corporation
    Inventors: Tomohiro KINTOKI, Seiya ONO, Reiji MAEKAWA, Mitsumasa IEDA, Keijiro KINOSHITA, Kenji YOSHIMOTO, Masaki TANASE
  • Publication number: 20210230104
    Abstract: There is provided a process and an apparatus for urea production in which preheating of raw material ammonia or heating in a medium-pressure decomposition step can be performed at a relatively low pressure while preventing decrease in an overall heat transfer coefficient. A process for urea production includes: a synthesis step of generating a urea synthesis solution; a high-pressure decomposition step of heating the urea synthesis solution to separate a gaseous mixture containing ammonia and carbon dioxide from the urea synthesis solution; a condensation step of condensing the gaseous mixture; a medium-low-pressure steam generation step of reducing a pressure of medium-pressure steam condensate obtained in the high-pressure decomposition step to a medium-low pressure to generate medium-low-pressure steam and medium-low-pressure steam condensate; and one or both of a medium-pressure decomposition step and an ammonia preheating step.
    Type: Application
    Filed: July 2, 2019
    Publication date: July 29, 2021
    Applicant: TOYO ENGINEERING CORPORATION
    Inventors: Kenji YOSHIMOTO, Keigo SASAKI
  • Publication number: 20200172475
    Abstract: Provided are urea manufacturing method and apparatus, which can increase the conversion ratio into urea and to reduce the consumption of steam. The temperature of the reactor is increased by introducing the entire amount of raw material ammonia and introducing a portion of the decomposed gas from the stripper into the reactor. The raw material ammonia is preferably heated using the steam condensate generated in the purification step, and/or the steam generated by the heat of condensation of the decomposed gas and the unreacted substances in the condensation step. The heating temperature is preferably between 70 and 140° C.
    Type: Application
    Filed: February 12, 2020
    Publication date: June 4, 2020
    Applicant: Toyo Engineering Corporation
    Inventors: Keishi SATO, Kenji YOSHIMOTO, Haruyuki MORIKAWA
  • Patent number: 10604477
    Abstract: Provided are urea manufacturing method and apparatus, which can increase the conversion ratio into urea and to reduce the consumption of steam. The temperature of the reactor is increased by introducing the entire amount of raw material ammonia and introducing a portion of the decomposed gas from the stripper into the reactor. The raw material ammonia is preferably heated using the steam condensate generated in the purification step, and/or the steam generated by the heat of condensation of the decomposed gas and the unreacted substances in the condensation step. The heating temperature is preferably between 70 and 140° C.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: March 31, 2020
    Assignee: TOYO ENGINEERING CORPORATION
    Inventors: Keishi Sato, Kenji Yoshimoto, Haruyuki Morikawa
  • Publication number: 20200061552
    Abstract: The present invention relates to the phantom comprises water, an oil, an emulsifier and an oil coagulating agent.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 27, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Etsuko OHMAE, Kenji YOSHIMOTO, Hiroko WADA, Yukio UEDA
  • Publication number: 20200061550
    Abstract: The present invention relates to the phantom comprises water, an oil, an emulsifier and a water coagulating agent, and having a scattering coefficient of 5 to 20 cm?1 at a wavelength of 750 to 1000 nm.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 27, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Etsuko OHMAE, Kenji YOSHIMOTO, Hiroko WADA, Yukio UEDA
  • Publication number: 20190209012
    Abstract: A biological measurement device includes a probe including a contact surface that includes a plurality of light input portions that input light to a measurement target part and a plurality of light receiving portions that receive measurement light output from the measurement target part, the contact surface being pressed against the measurement target part, and a calculation unit that calculates internal information on the basis of a result of detecting the measurement light obtained for each combination of the light input portion and the light receiving portion, wherein the plurality of light input portions and the plurality of light receiving portions constitute lattices having an interval d in a first direction and a second direction orthogonal to each other on the contact surface.
    Type: Application
    Filed: September 4, 2017
    Publication date: July 11, 2019
    Applicants: HAMAMATSU PHOTONICS K.K., NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Kenji YOSHIMOTO, Yukio UEDA, Etsuko OHMAE, Tetsuya MIMURA, Nobuko YOSHIZAWA, Hatsuko NASU, Hiroyuki OGURA, Harumi SAKAHARA
  • Publication number: 20180258034
    Abstract: Provided are urea manufacturing method and apparatus, which can increase the conversion ratio into urea and to reduce the consumption of steam. The temperature of the reactor is increased by introducing the entire amount of raw material ammonia and introducing a portion of the decomposed gas from the stripper into the reactor. The raw material ammonia is preferably heated using the steam condensate generated in the purification step, and/or the steam generated by the heat of condensation of the decomposed gas and the unreacted substances in the condensation step. The heating temperature is preferably between 70 and 140° C.
    Type: Application
    Filed: August 31, 2016
    Publication date: September 13, 2018
    Applicant: Toyo Engineering Corporation
    Inventors: Keishi SATO, Kenji YOSHIMOTO, Haruyuki MORIKAWA
  • Patent number: 9833147
    Abstract: A mammography device is disclosed. The mammography device includes a container configured to surround the breast and a plurality of optical fibers attached to be directed inward in the container and configured to perform radiation and detection of light. The container has a base member having an opening, a plurality of annular members continuously disposed to come in communication with the opening, and a bottom member disposed inside the annular member spaced the farthest distance from the base member. The annular members and the bottom member are configured to relatively displace the adjacent annular member on the side of the base member or the base member in a communication direction. Some of the plurality of optical fibers is attached to the plurality of annular members.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 5, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Toshihiko Suzuki, Yutaka Yamashita, Yukio Ueda, Etsuko Yamaki, Daisuke Yamashita, Kenji Yoshimoto, Harumi Sakahara, Hiroyuki Ogura, Hatsuko Nasu
  • Patent number: 9427213
    Abstract: A breast measurement apparatus comprises a receptacle for surrounding a breast; a plurality of optical fibers for irradiating the breast with examination light and detecting transmitted scattered light from the breast; an inner image generation unit for generating an optical CT image concerning the breast according to a detection signal of the transmitted scattered light; an ultrasonic probe, arranged so as to face the inside of the receptacle, for scanning the breast with an ultrasonic wave and receiving a reflected wave from the breast; an image generation unit for generating an ultrasonic image concerning the breast according to the reflected wave; and a mechanism for injecting and discharging a liquid interface agent into and from the inside of the receptacle.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: August 30, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Toshihiko Suzuki, Yutaka Yamashita, Yukio Ueda, Etsuko Yamaki, Daisuke Yamashita, Kenji Yoshimoto, Harumi Sakahara, Hiroyuki Ogura, Hatsuko Nasu
  • Patent number: 9373020
    Abstract: In measurement data selection, when a vector composed of measurement data obtained for respective combinations of light emitting positions, light detection positions, and resolving times in a time-resolved waveform is given as y, a vector in which pixel values of learning image data are components is given as x, and a system matrix for calculating internal image data from the measurement data is given as A1, the vector y which meets the conditional expressions (2) and (3) min?y?00??(2), ?x?A1Ty?22??2??(3) or the conditional expression (4) min(?y?00+??x?A1Ty?22)??(4) is determined, and upon measurement of a subject, only the measurement data corresponding to nonzero components of the vector y is used to prepare the internal image data.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: June 21, 2016
    Assignees: UNIVERSITY OF TSUKUBA, HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroyuki Kudo, Naoya Saito, Yukio Ueda, Kenji Yoshimoto, Yutaka Yamashita
  • Patent number: 9282932
    Abstract: The bioinstrumentation apparatus includes a light irradiation unit irradiating a measurement region with light, a light detection unit detecting diffused light from the measurement region, and a computing unit generating a reconstructed image for the interior of the measurement region. The computing unit calculates J coefficients wj set for every pixel of the reconstructed image and more than 0 and not more than 1 (where J is the number of pixels of the reconstructed image) and carries out successive approximation computation by the following iterative formula xj(k+1)=xj(k)+wjdj(k) (where k is an integer from 1 to N, N is the number of times of iterative computation, xj(k) is a pixel value of the jth pixel on the kth iterative computation, and dj(k) is an update amount of the jth pixel on the kth iterative computation) to generate the reconstructed image.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: March 15, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroyuki Kudo, Naoya Saito, Yukio Ueda, Kenji Yoshimoto, Yutaka Yamashita
  • Publication number: 20150169933
    Abstract: In measurement data selection, when a vector composed of measurement data obtained for respective combinations of light emitting positions, light detection positions, and resolving times in a time-resolved waveform is given as y, a vector in which pixel values of learning image data are components is given as x, and a system matrix for calculating internal image data from the measurement data is given as A1, the vector y which meets the conditional expressions (2) and (3) min?y?00??(2), ?x?A1Ty?22??2??(3) or the conditional expression (4) min(?y?00+??x?A1Ty?22)??(4) is determined, and upon measurement of a subject, only the measurement data corresponding to nonzero components of the vector y is used to prepare the internal image data.
    Type: Application
    Filed: June 27, 2013
    Publication date: June 18, 2015
    Inventors: Hiroyuki Kudo, Naoya Saito, Yukio Ueda, Kenji Yoshimoto, Yutaka Yamashita
  • Publication number: 20140357998
    Abstract: A mammography device is disclosed. The mammography device includes a container configured to surround the breast and a plurality of optical fibers attached to be directed inward in the container and configured to perform radiation and detection of light. The container has a base member having an opening, a plurality of annular members continuously disposed to come in communication with the opening, and a bottom member disposed inside the annular member spaced the farthest distance from the base member. The annular members and the bottom member are configured to relatively displace the adjacent annular member on the side of the base member or the base member in a communication direction. Some of the plurality of optical fibers is attached to the plurality of annular members.
    Type: Application
    Filed: November 9, 2012
    Publication date: December 4, 2014
    Inventors: Toshihiko Suzuki, Yutaka Yamashita, Yukio Ueda, Etsuko Yamaki, Daisuke Yamashita, Kenji Yoshimoto, Harumi Sakahara, Hiroyuki Ogura, Hatsuko Nasu
  • Patent number: 8877658
    Abstract: Methods for performing directed self-assembly (DSA) of block copolymer (BCP) material on a substrate are disclosed. The BCP is disposed over a patterned neutral layer made from a random copolymer. The BCP is annealed with a laser to induce the directed self-assembly. The scan type may include single scan, multiple scan, or multiple scan with overlap. A variety of power settings and dwell times may be used within a single wafer to achieve multiple heating conditions within a single wafer.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: November 4, 2014
    Assignee: GLOBALFOUNDRIES Inc.
    Inventor: Kenji Yoshimoto
  • Publication number: 20140135620
    Abstract: The bioinstrumentation apparatus includes a light irradiation unit irradiating a measurement region with light, a light detection unit detecting diffused light from the measurement region, and a computing unit generating a reconstructed image for the interior of the measurement region. The computing unit calculates J coefficients wj set for every pixel of the reconstructed image and more than 0 and not more than 1 (where J is the number of pixels of the reconstructed image) and carries out successive approximation computation by the following iterative formula xj(k+1)=xj(k)+wjdj(k) (where k is an integer from 1 to N, N is the number of times of iterative computation, xj(k) is a pixel value of the jth pixel on the kth iterative computation, and dj(k) is an update amount of the jth pixel on the kth iterative computation) to generate the reconstructed image.
    Type: Application
    Filed: June 28, 2012
    Publication date: May 15, 2014
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Hiroyuki Kudo, Naoya Saito, Yukio Ueda, Kenji Yoshimoto, Yutaka Yamashita
  • Publication number: 20140106575
    Abstract: Methods for performing directed self-assembly (DSA) of block copolymer (BCP) material on a substrate are disclosed. The BCP is disposed over a patterned neutral layer made from a random copolymer. The BCP is annealed with a laser to induce the directed self-assembly. The scan type may include single scan, multiple scan, or multiple scan with overlap. A variety of power settings and dwell times may be used within a single wafer to achieve multiple heating conditions within a single wafer.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Applicant: GLOBALFOUNDRIES INC.
    Inventor: Kenji YOSHIMOTO
  • Patent number: 8700349
    Abstract: In a method for measuring a scattering medium, pulse light with a predetermined wavelength is made incident on a scattering medium which is a measurement object and a scattering medium for reference, the pulse light transmitted inside the scattering media is detected to acquire a light detection signal, the measurement waveform is acquired on the basis of the detected light detection signal, a parameter of a function showing the theoretical waveform of the measurement object is specified in such a manner that the result of convolution operation on the theoretical waveform of the measurement object and the measurement waveform of the reference is made equal to the result of convolution operation on the theoretical waveform of the reference and the measurement waveform of the measurement object, and calculation is made for the internal information of the scattering medium on the basis of the theoretical waveform shown by the function.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: April 15, 2014
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kenji Yoshimoto, Kazuyoshi Ohta, Daisuke Yamashita, Hiroaki Suzuki