Patents by Inventor Koichi Shimizu

Koichi Shimizu 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: 9816562
    Abstract: A vacuum pump comprises: a ball bearing which supports a rotor; a holding section which elastically holds an outer ring of the ball bearing; and a grease which is filled between the outer ring and the holding section, the grease having a consistency of NLGI No. 1.5 or less.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: November 14, 2017
    Assignee: Shimadzu Corporation
    Inventors: Koichi Shimizu, Osamu Ashida
  • Publication number: 20170309533
    Abstract: A method of manufacturing a ceramic package is provided. An electrically conductive paste is applied to an inside of the first hole and an inside of the second hole of a ceramic green sheet. A ceramic member including first and second electrically conductive members is formed by burning the ceramic green sheet. The ceramic member is divided so as to divide each of the first and second electrically conductive members. A distance between first and second connecting portions is smaller than each of a length of the first connecting portion in a first direction and a length of the second connecting portion in a second direction. The length of the first connecting portion in the first direction is larger than a length of the first connecting portion in a third direction. The length of the second connecting portion has a similar relation.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 26, 2017
    Inventor: Koichi Shimizu
  • Publication number: 20170279622
    Abstract: A data determination apparatus of the present invention includes a state transition model storage unit to store a state transition model representing a state transition, a state management unit to hold an operating state of an own apparatus based on the state transition model, a communication permission list storage unit to store, as a communication permission list, communication permitted data whose communications are permitted in respective operating states, a communication unit to obtain communication determination data, and a determination unit to determine whether or not the communication determination data is communication permitted data whose communication has been permitted in a current operating state, using the current operating state and the communication permission list.
    Type: Application
    Filed: December 22, 2015
    Publication date: September 28, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Teruyoshi YAMAGUCHI, Koichi SHIMIZU, Nobuhiro KOBAYASHI, Tsunato NAKAI
  • Publication number: 20170192818
    Abstract: There is provided a matrix division method used by a computer that performs processing for computing a matrix equation including a sparse matrix as a coefficient matrix. The matrix division method includes acquiring, from a storing unit, a threshold used to determine the multitude of non-zero elements included in each of rows of the sparse matrix; identifying, within the sparse matrix, a first row whose count of non-zero elements is larger than the threshold; extending the sparse matrix by dividing the identified first row into a plurality of second rows; and dividing the extended sparse matrix into a plurality of row groups and assigning a process being an executable unit of the processing to each of the row groups.
    Type: Application
    Filed: December 8, 2016
    Publication date: July 6, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Koichi Shimizu
  • Publication number: 20170116358
    Abstract: A magnetic body simulation device includes a memory; and a processor coupled to the memory and the processor configured to decide a search section for searching a rotational coefficient of each magnetization vector in a plurality of elements included in a magnetic body, in a process of calculating the each rotational coefficient in a state in which magnetic energy of the magnetic body is minimized, to determine whether or not a first condition is satisfied in which a width of the decided search section is less than or equal to a certain length, and a first rotational coefficient decided by a predetermined method is included in the search section, and to calculate, when the first condition is satisfied, a static magnetic field vector corresponding to the first rotational coefficient by linear interpolation based on static magnetic field vectors at both ends of the search section.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 27, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Tomohiro TANAKA, Koichi Shimizu
  • Publication number: 20170068762
    Abstract: A simulation method for causing a computer to execute a process, the process includes: calculating, based on information associated with edge elements with which an acquired calculation target is modeled and information of Gaussian numerical integration points in a cell element surrounded by the plurality of edge elements, using a finite element method, a magnetic flux density vector for each of the Gaussian numerical integration points, and calculating a magnetization vector for each of the Gaussian numerical integration points, based on the magnetic flux density vector and a plurality of microscopic magnetization vectors associated with the Gaussian numerical integration points.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 9, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Koichi Shimizu
  • Publication number: 20160313414
    Abstract: An information processor for magnetic property analysis, the information processor includes: an acquisition part to acquire a first magnetization vector and a second magnetization vector; and a generation part to generate an interpolation magnetization vector that has an initial point on a straight line connecting initial points of the acquired first magnetization vector and the acquired second magnetization vector and is directed in a plane identical to a plane in which the first magnetization vector and the second magnetization vector are directed.
    Type: Application
    Filed: March 18, 2016
    Publication date: October 27, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Koichi SHIMIZU
  • Patent number: 9464983
    Abstract: A concentration determination apparatus may determine a concentration of a target component in an arbitrary layer of an observed object including a plurality of light scattering medium layers. The concentration determination apparatus may include an irradiation unit, light scattering medium layer selection unit, a light receiving unit, a light intensity acquisition unit, an optical absorption coefficient calculation unit, and a concentration calculation unit.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: October 11, 2016
    Assignees: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Kazuhiko Amano, Koichi Shimizu
  • Publication number: 20160239597
    Abstract: A model is defined as a collection of nodes and elements, where each element is a region whose boundaries are defined by three or more nodes. A processor obtains a first dataset including first values calculated for different nodes or elements of the model. The processor sets a plurality of grid points addressed by coordinates of two or more orthogonal axes, and calculates second values corresponding respectively to a subset of the grid points, based on positions of the nodes or elements and the first values. The processor then stores a second dataset including the second values into the storage device. When the second dataset is read out of the storage device, the processor restores the first values corresponding to the plurality of nodes or elements, based on positions of the subset of the grid points and the second values included in the second dataset.
    Type: Application
    Filed: August 17, 2015
    Publication date: August 18, 2016
    Inventor: Koichi Shimizu
  • Publication number: 20160224707
    Abstract: A model includes first and second elements. The first element includes a first plane, and the second element includes a second plane. The second plane includes an overlapping area that overlaps with the first plane and a non-overlapping area that is outside the first plane. A magnetic field simulator apparatus calculates second magnetic field data for the overlapping area of the second plane, based on position data indicating a position of the first plane, as well as on first magnetic field data for the first plane. The magnetic field simulator apparatus further calculates third magnetic field data for the non-overlapping area, based on the second magnetic field data and a relative position of the non-overlapping area with respect to the overlapping area.
    Type: Application
    Filed: January 5, 2016
    Publication date: August 4, 2016
    Applicant: FUJITSU LIMITED
    Inventor: Koichi Shimizu
  • Publication number: 20160196372
    Abstract: A magnetization vector storing method includes: acquiring, by a computer, a saturation magnetization value of a material to be simulated from a database indicating the saturation magnetization value of each material; dividing each component of a magnetization vector indicating a magnetization state of the material to be simulated by the saturation magnetization value; and converting each component of the magnetization vector obtained after the dividing using the saturation magnetization into an integer value and storing the integer value in a storage unit.
    Type: Application
    Filed: November 18, 2015
    Publication date: July 7, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Jun FUJISAKI, Koichi SHIMIZU
  • Patent number: 9380968
    Abstract: A light absorption coefficient distribution estimation device includes a detection section and a light absorption coefficient distribution estimation section. The detection section detects the received light intensity of scattered light from a subject at a plurality of light-receiving positions that differ in distance from an irradiation position at which measurement light is applied to the subject. The light absorption coefficient distribution estimation section estimates the light absorption coefficient distribution of the subject using the received light intensity, a propagation optical path length model that specifies a propagation optical path length on a basis of the distance, and a first model that specifies the received light intensity on a basis of the distance when absorption of light is at a predetermined value.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: July 5, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiro Nishida, Koichi Shimizu, Yuji Kato
  • Patent number: 9370323
    Abstract: A concentration determination apparatus may include: an irradiation unit that irradiates short-pulsed light to an observed object; a light receiving unit that receives light backscattered from the observed object; a light intensity acquisition unit that acquires an intensity distribution of the light; an optical path length distribution storage unit that stores a model of an optical path length distribution in each layer of the plurality of layers of the short-pulsed light; an optical path length acquisition unit that acquires the optical path length distribution of each layer; a time-resolved waveform storage unit that stores a model of a time-resolved waveform; a light intensity model acquisition unit that acquires a light intensity model; an integral interval calculation unit that calculates a time range of an area; an optical absorption coefficient calculation and acquisition unit that calculates and acquires an optical absorption coefficient; and a concentration calculation unit that calculates the conce
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: June 21, 2016
    Assignees: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Kazuhiko Amano, Koichi Shimizu
  • Patent number: 9361482
    Abstract: A device generating specific information of a semiconductor device includes a bit generation unit including a glitch generation circuit and a bit conversion circuit for converting a shape of the glitch into an information bit. The glitch generation circuit includes a plurality of combinational circuits mounted thereon to output a plurality of different glitches. The bit generation unit further includes a selector for selecting one glitch from among the plurality of different glitches in response to a selection signal to output the selected one glitch to the bit conversion circuit. The device further includes a performance evaluation/control unit for outputting the selection signal to obtain a piece of bit information corresponding to each of the plurality of different glitches and specifying a glitch satisfying a desired performance based on the respective pieces of bit information.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 7, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Koichi Shimizu
  • Patent number: 9332936
    Abstract: A concentration determination apparatus in accordance with exemplary embodiments has a storage body and a temperature control plate. The concentration determination apparatus may also have a first and second input light guide and a first and second light receiving light guide, and an operational unit that contains an absorbance calculation device for calculating an absorbance of liquid and living body tissue and a concentration calculation device for comparing the absorbance of the liquid and the living body tissue.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 10, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kazuhiro Nishida, Kazuhiko Amano, Koichi Shimizu
  • Publication number: 20160069391
    Abstract: A vacuum pump comprises: a ball bearing which supports a rotor; a holding section which elastically holds an outer ring of the ball bearing; and a grease which is filled between the outer ring and the holding section, the grease having a consistency of NLGI No. 1.5 or less.
    Type: Application
    Filed: July 16, 2015
    Publication date: March 10, 2016
    Inventors: Koichi SHIMIZU, Osamu ASHIDA
  • Publication number: 20160048618
    Abstract: A magnetization analyzing apparatus calculates a solution of a system of equations for magnetic field by iterative calculation. The magnetization analyzing apparatus includes a processor configured to execute a process including: acquiring a preconditioner by decomposing a coefficient matrix included in the system of equations; and calculating a value of a parameter for adjusting values of diagonal components of the acquired preconditioner based on binary search so that values of diagonal components of the preconditioner become positive by using the parameter.
    Type: Application
    Filed: June 29, 2015
    Publication date: February 18, 2016
    Inventor: Koichi Shimizu
  • Publication number: 20160048617
    Abstract: A magnetization analysis apparatus includes a processor configured to execute a process. The process includes: first calculating, using a magnetization vector of each of elements obtained by mesh division in which a magnetic substance is divided into a plurality of meshes and a magnetization vector of an element adjacent to each element, intermediate magnetization that is a magnetization vector at the halfway point between each element and an element adjacent to each element; second calculating an effective magnetic field using the intermediate magnetization calculated at the first calculating; and third calculating a magnetization vector of each element after a unit time based on the effective magnetic field calculated at the second calculating.
    Type: Application
    Filed: June 12, 2015
    Publication date: February 18, 2016
    Inventors: Atsushi Furuya, Tadashi Ataka, Koichi Shimizu
  • Patent number: 9207289
    Abstract: A magnetic property analyzing apparatus calculates vector potentials of each of elements to which an analyzing target is segmented by meshing, using an average magnetization obtained for each of the elements, and performs a magnetic field analysis of sub-grids arranged along one direction within each of the elements. An average magnetization with respect to each of the elements is calculated by performing a time integral on a LLG (Landau Lifshitz Gilbert) equation using a magnetic field obtained from the magnetic field analysis in order to perform a magnetic property analysis.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: December 8, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Koichi Shimizu
  • Publication number: 20150313516
    Abstract: The non-invasive biolipid concentration meter comprises: an irradiator (2) that emits light at a given intensity toward the inside of a living body from outside; a light intensity detector (3) that is disposed at a given distance from a position (21) irradiated with the light from the irradiator (2) and that determines the intensity of light emitted from the living body; a scattering coefficient calculator (4) that calculates the coefficient of light scattering within the living body on the basis of the light intensity determined with the light intensity detector (3); and a lipid concentration calculator (5) that calculates the lipid concentration in the living body on the basis of the coefficient of light scattering.
    Type: Application
    Filed: November 14, 2013
    Publication date: November 5, 2015
    Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Koichi SHIMIZU, Kazuya IINAGA