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: 8137986
    Abstract: A chemiluminescent enzyme immunoassay method whereby a target substance such as a protein is assayed. This chemiluminescent enzyme immunoassay method comprises: the step of capturing an immune complex containing an enzyme-labeled antibody, which is labeled with an enzyme acting a chemiluminescent substrate, and the target substance on a support having no solution layer; the step of overlaying a support membrane containing the chemiluminescent substrate on the immune complex having been captured above; and the step of measuring the luminescence dose caused by the reaction between the enzyme-labeled antibody and the chemiluminescent substrate to thereby quantify the target substance.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: March 20, 2012
    Assignees: National University Corporation Hokkaido University, Seiken Co., Ltd., Aska Special Laboratory Co., Ltd.
    Inventors: Koichi Shimizu, Takeshi Kawaguchi, Yasuyo Maeda, Takehide Matsuda
  • Publication number: 20120046888
    Abstract: An analysis apparatus analyzes the properties of an object to be analyzed. Specifically, the analysis apparatus receives an input of property information on an object to be analyzed and calculates, in accordance with the property information on the input object to be analyzed, an average value of magnetization vectors allocated to each micro-region that is obtained by dividing the object to be analyzed into regions. Then, by using the calculated average value of the magnetization vectors and an equation of a magnetic field that is a governing equation of a vector potential, the analysis apparatus calculates the vector potential obtained after a predetermined time has elapsed.
    Type: Application
    Filed: May 23, 2011
    Publication date: February 23, 2012
    Applicant: FUJITSU LIMITED
    Inventor: Koichi SHIMIZU
  • Publication number: 20120029849
    Abstract: A non-transitory computer-readable recording medium stores a magnetic program causing a computer to perform an exchange coupling energy calculating process including interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method with reference to a rotation axis perpendicular to the two magnetization vectors, and calculating a magnetic exchange coupling field by integrating a magnetic field acting as a force exerted on the two magnetization vectors with the interpolated rotation angle.
    Type: Application
    Filed: May 18, 2011
    Publication date: February 2, 2012
    Applicant: FUJITSU LIMITED
    Inventor: Koichi Shimizu
  • Publication number: 20120010477
    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: Application
    Filed: July 5, 2011
    Publication date: January 12, 2012
    Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, SEIKO EPSON CORPORATION
    Inventors: Kazuhiko AMANO, Koichi SHIMIZU
  • Publication number: 20100321013
    Abstract: A first equation is created, using the physical property data of a user-specified target to be analyzed, to calculate a first magnetic field due to a current vector in the target to be analyzed in such a manner that a finite element method and a boundary integral method are applicable to the first equation. A second equation is created, using the physical property data of the user-specified target to be analyzed, to calculate a second magnetic field due to a magnetization vector in the target to be analyzed in such a manner that the finite element method and the boundary integral method are applicable to the second equation. A first magnetic field and a second magnetic field are calculated using the first equation and the second equation, respectively. The sum of the first magnetic field and the second magnetic field is set to the magnetic field of the target.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 23, 2010
    Applicant: Fujitsu Limited
    Inventor: Koichi Shimizu
  • Patent number: 7813905
    Abstract: The simulation apparatus includes mesh dividing section, process condition setting section, boundary surface simulating section for simulating a change in a shape of a boundary surface of the structure which change is caused from the process using the calculation condition set by the process condition setting section, level value determining section for determining level values each of which concerns a distance between one of the nodes and the boundary surface, and level value data retaining section for retaining, for each of the nodes, the level value in association with the boundary surface. The simulation apparatus makes it possible to express a number of materials being smaller in size than the mesh element. Consequently, the mesh element size can be set larger to improve the memory consumption amount and the calculation speed.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: October 12, 2010
    Assignee: Fujitsu Limited
    Inventors: Atsushi Furuya, Koichi Shimizu
  • Publication number: 20100256920
    Abstract: An apparatus for quantifying concentration includes a temporal path-length distribution (TPD) storage unit configured to store a TPD model of a short-time-pulse of light, a time-resolved waveform storage unit configured to store a time-resolved waveform model of the short-time-pulse of light, a light irradiating unit configured to irradiate the short-time-pulse of light, a light receiving unit configured to receive a backscattered light, a measured light intensity acquisition unit configured to acquire a light intensity of the backscattered light, a TPD acquisition unit configured to acquire a TPD, a model light intensity acquisition unit configured to acquire the light intensity of the short-time-pulse of light, a light absorption coefficient calculating unit configured to calculate a light absorption coefficient, and a concentration calculating unit configured to calculate the concentration of a target component.
    Type: Application
    Filed: March 25, 2010
    Publication date: October 7, 2010
    Applicants: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Kazuhiko Amano, Koichi Shimizu
  • Publication number: 20100237990
    Abstract: A biological information acquiring apparatus includes light source units configured to irradiate light onto a living body, a light receiving unit including a light receiving element, the light receiving element including pixels, each of the pixels receiving at least one of a transmission light and a reflection light, and a nonuniform filter disposed on the light receiving unit and on a light path of at least one of the transmission light and the reflection light, the nonuniform filter having a light transmittance that varies with area of the nonuniform filter. The light source units are disposed around the light receiving unit discretely, and the light transmittance of the nonuniform filter is set so that a light intensity of at least one of the transmission light and the reflection light is uniform over an entire surface of the light receiving element.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 23, 2010
    Applicants: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Kazuhiko AMANO, Koichi SHIMIZU
  • Patent number: 7717073
    Abstract: An engine variable valve actuation mechanism that substantially equally adjusts the valve lift amount in each cylinder. The mechanism includes variable valve lift mechanisms respectively arranged in association with the engine cylinders. A control shaft extends through the variable valve lift mechanisms. An actuator moves the control shaft in the axial direction and drives the variable valve lift mechanisms. Collars are arranged alternately with the variable valve lift mechanisms. Each collar includes a cylindrical sleeve and flanges formed integrally with the sleeve. The flanges directly or indirectly contact the end faces of adjacent variable valve lift mechanisms. This determines the positions of the variable valve lift mechanisms with respect to one another in the axial direction.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: May 18, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takahide Koshimizu, Fuminori Hosoda, Koichi Shimizu
  • Publication number: 20090313230
    Abstract: A computing job information managing device assigns computing job identification information independent of an existing computing job controller to a computing job. By a matching process, the device associates a job in which a computer executes computation with a job uniquely assigned identification information by the computing job information managing device. A terminal transmits a request to acquire data of the in-progress data of the computation or the result of the computation to the computing job information managing device, thereby acquiring a combination of the address information about a computer needed to use an interface provided by a program being executed in a computer and the number of an available port.
    Type: Application
    Filed: August 19, 2009
    Publication date: December 17, 2009
    Applicant: FUJITSU LIMITED
    Inventor: Koichi SHIMIZU
  • Publication number: 20090171636
    Abstract: According to an aspect of an embodiment, a high-speed operation method for directing a computer to process a coefficient matrix constituting simultaneous equations generated by modeling an analysis target into a mesh by using the finite element method and the boundary element method, said method includes obtaining two edges that are not on a same plane and that are the closest to each other from among edges defined in a mesh of a boundary modeled by the boundary element method, and ordering, in a vicinity of on-diagonal elements of the coefficient matrix, matrix elements in the coefficient matrix of simultaneous equations obtained for the two edges that are the closest to each other.
    Type: Application
    Filed: February 27, 2009
    Publication date: July 2, 2009
    Applicant: FUJITSU LIMITED
    Inventor: Koichi SHIMIZU
  • Patent number: 7544280
    Abstract: A plating analyzing method is disclosed for analyzing an electroplating system having an anode, a cathode and plating liquid, based on a Laplace's equation. The method comprises the steps of making the Laplace's equation discrete by Finite Volume Method; forming simultaneous equations based on the discrete Laplace's equation; and calculating potential distribution using the simultaneous equations. A plating analyzing apparatus is also disclosed, which comprises a unit for making the Laplace's equation discrete by Finite Volume Method and dividing the system into a plurality of elements; potential calculating unit for forming simultaneous equations based on the discrete Laplace's equation, and calculating potential distribution using the simultaneous equations; and current density calculating unit for calculating current density distribution based on the potential distribution.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: June 9, 2009
    Assignee: Fujitsu Limited
    Inventor: Koichi Shimizu
  • Publication number: 20090142781
    Abstract: A chemiluminescent enzyme immunoassay method whereby a target substance such as a protein is assayed. This chemiluminescent enzyme immunoassay method comprises: the step of capturing an immune complex containing an enzyme-labeled antibody, which is labeled with an enzyme acting a chemiluminescent substrate, and the target substance on a support having no solution layer; the step of overlaying a support membrane containing the chemiluminescent substrate on the immune complex having been captured above; and the step of measuring the luminescence dose caused by the reaction between the enzyme-labeled antibody and the chemiluminescent substrate to thereby quantify the target substance.
    Type: Application
    Filed: October 30, 2006
    Publication date: June 4, 2009
    Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSIT
    Inventors: Koichi Shimizu, Takeshi Kawaguchi, Yasuyo Maeda, Takehide Matsuda
  • Patent number: 7475662
    Abstract: A feed screw mechanism including a screwed shaft which moves linearly along with the control shaft, and a rotation spindle which rotates in a circumferential direction. The feed screw mechanism converts a rotational movement of the rotation spindle into a linear movement of the screwed shaft. A protrusion protrudes outwardly from the rotation spindle. An internal thread member engages with an outer wall surface of the rotation spindle. A motor stator generating a magnetic is positioned over the rotation spindle, and is sandwiched between the protrusion and the internal thread member in an axial direction of the rotation spindle.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: January 13, 2009
    Assignees: Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuyoshi Suzuki, Hideo Inaba, Jouji Yamaguchi, Toshiki Fujiyoshi, Akira Tsunoda, Koichi Shimizu
  • Patent number: 7458351
    Abstract: A valve timing controller includes a guide rotation member provided with a guide groove, a bearing rotation member radially supporting the guide rotation member, and a plurality of movable bodies sliding in the guide groove in accordance with a rotation of the guide rotation member. A plurality of link mechanisms connects the bearing rotation member with each one of movable bodies respectively, and rotates the bearing rotation member in accordance with a movement of the movable bodies. The valve timing of at least one of the intake valve and the exhaust valve is adjusted in accordance with a rotation of the bearing rotation body. A clearance gap is provided between the guide rotation member and the bearing rotation member in order to permit a relative radial movement of the guide rotation member with respect to the bearing rotation member.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: December 2, 2008
    Assignees: Denso Corporation, Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Akihiko Takenaka, Eiji Isobe, Takayuki Inohara, Yoshihito Moriya, Takashi Inoue, Koichi Shimizu
  • Publication number: 20080287809
    Abstract: A biological information measuring apparatus measures information of a living body by irradiating the living body with light. The apparatus includes: a first light source irradiating the living body with light; a second light source irradiating the living body with light; and a light receiving section constituted by a plurality of light receiving elements that receives reflected light reflected by the living body or transmitting light transmitting through the living body, during light irradiation of the living body. In the biological information measuring apparatus, the first light source and the second light source are disposed so that a first distance between the light receiving section and the first light source is different from a second distance between the light receiving section and the second light source.
    Type: Application
    Filed: April 23, 2008
    Publication date: November 20, 2008
    Applicants: SEIKO EPSON CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Kazuhiko Amano, Yuji Kato, Koichi Shimizu
  • Patent number: 7341030
    Abstract: A valve timing controller is provided with a first rotary element that rotates in response to the movement of a crankshaft, a second rotary element that rotates in response to the movement of a camshaft. A link mechanism changes a relative rotation phase between the first and second rotary elements. The first and second rotary elements include introduction passages that introduce a lubricating fluid in the first rotary element. In the link mechanism, shafts are fitted in the links. The links relatively rotate with respect to the shaft, and include conveying passages to communicate with the introduction passages and convey the lubricating fluid from the introduction passages to the circumference of the shaft.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: March 11, 2008
    Assignees: Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Hori, Eiji Isobe, Yoshihito Moriya, Takashi Inoue, Koichi Shimizu
  • Publication number: 20080010046
    Abstract: The simulation apparatus includes mesh dividing section, process condition setting section, boundary surface simulating section for simulating a change in a shape of a boundary surface of the structure which change is caused from the process using the calculation condition set by the process condition setting section, level value determining section for determining level values each of which concerns a distance between one of the nodes and the boundary surface, and level value data retaining section for retaining, for each of the nodes, the level value in association with the boundary surface. The simulation apparatus makes it possible to express a number of materials being smaller in size than the mesh element. Consequently, the mesh element size can be set larger to improve the memory consumption amount and the calculation speed.
    Type: Application
    Filed: September 17, 2007
    Publication date: January 10, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Atsushi FURUYA, Koichi SHIMIZU
  • Publication number: 20070266977
    Abstract: A valve timing controller includes a guide rotation member provided with a guide groove, a bearing rotation member radially supporting the guide rotation member, and a plurality of movable bodies sliding in the guide groove in accordance with a rotation of the guide rotation member. A plurality of link mechanisms connects the bearing rotation member with each one of movable bodies respectively, and rotates the bearing rotation member in accordance with a movement of the movable bodies. The valve timing of at least one of the intake valve and the exhaust valve is adjusted in accordance with a rotation of the bearing rotation body. A clearance gap is provided between the guide rotation member and the bearing rotation member in order to permit a relative radial movement of the guide rotation member with respect to the bearing rotation member.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 22, 2007
    Applicants: DENSO CORPORATION, Nippon Soken, Inc., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiko Takenaka, Eiji Isobe, Takayuki Inohara, Yoshihito Moriya, Takashi Inoue, Koichi Shimizu
  • Publication number: 20070270666
    Abstract: A biological information acquisition device that acquires information from a biological body by irradiating the biological body with light, the device comprises: a light source irradiating the biological body with light; a plurality of light receiving elements receiving one of passed light and reflected light from the biological body irradiated with light by the light source; and an inhomogeneous neutral density filter disposed on the plurality of light receiving elements and in a light path of one of passed light and reflected light. An optical transmittance of the inhomogeneous neutral density filter is set so that intensity of each light component received by light receiving elements is evened out as a whole.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 22, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuhiko AMANO, Koichi SHIMIZU