Patents by Inventor Toshiaki Hisada

Toshiaki Hisada 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: 20110288834
    Abstract: A fluid structure interaction simulation method includes a graph information forming process to form graph information of nodes obtained by discretising a computing region for each of a fluid and a structure that are represented by meshes, and a main time development loop process to simulate a physical phenomenon. The loop process includes arranging IMEs (Interaction Mediating Elements) that move with a displacement of the structure, on a boundary of the structure, defining, within the IME, correcting functions of a pressure and a velocity of the fluid that interact with the pressure and the velocity of the fluid and the displacement of the structure, and executing a simulation based on the correcting functions, in a state in which the meshes of the fluid are mismatched to the meshes of the structure.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 24, 2011
    Applicants: THE UNIVERSITY OF TOKYO, FUJITSU LIMITED
    Inventors: Takashi Yamazaki, Yoshimasa Kadooka, Toshiaki Hisada, Seiryo Sugiura, Takumi Washio, Junichi Okada
  • Publication number: 20110235883
    Abstract: A method includes: obtaining designated 3D template for a designated part in a heart; generating 3D annulus data representing an annulus of a heart valve identified as a reference of transformation, from a cross-section image in a plane passing through an axis within the annulus of the identified heart valve in 3D volume data generated from tomographic images; identifying a first point on the annulus of the identified heart valve in the designated 3D template and a second point on the annulus represented by the 3D annulus data; arranging n starting points from the first point on the annulus of the identified heart valve in the designated 3D template and n target points from the second point on the annulus represented by the 3D annulus data; and calculating movement destination coordinates of vertices of polygons relating to the designated 3D template to transform the designated 3D template.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 29, 2011
    Applicants: Fujitsu Limited, The University of Tokyo
    Inventors: Machiko NAKAGAWA, Toshiaki HISADA, Seiryo SUGIURA, Takumi WASHIO, Jun-ichi OKADA, Yoshimasa KADOOKA
  • Publication number: 20110007083
    Abstract: According to an aspect of the embodiment, a user apparatus transmits a parameter on generation of drawing data to each of drawing data generation apparatuses through a network, to assign generation processing of the drawing data to each of drawing data generation apparatuses. The user apparatus receives the drawing data generated based on the parameter by each of the plurality of drawing data generation apparatuses through the network, and displays the received drawing data. The user apparatus changes the parameter corresponding to the displayed drawing data, and displays a new drawing data corresponding to the changed parameter.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 13, 2011
    Applicants: FUJITSU LIMITED, UNIVERSITY OF TOKYO
    Inventors: Masahiro Watanabe, Toshiaki Hisada, Seiryo Sugiura, Takumi Washio, Jun-ichi Okada
  • Patent number: 7584084
    Abstract: A numerical model related to fluttering of an insect, when an equivalent model of actual structure of a wing of the insect is moved in the air in accordance with a model of fluttering motion of the wing of the insect is calculated by fluid-structure interactive analysis, in which behavior of the wing and behavior of the air are given as numerical values, including interaction therebetween. Thereafter, a method of controlling a fluttering robot, wing shape and the like are determined by modifying numerical models of fluttering of an insect prepared by fluid-structure interactive analysis, in accordance with sensitivity analysis. Accordingly, a method of preparing numerical models of wing and air considering the behavior of the wing of the insect in the air is provided and, in addition, a method of manufacturing a fluttering robot utilizing the numerical model prepared by this method of preparing numerical model can be provided.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: September 1, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaki Hamamoto, Yoshiji Ohta, Keita Hara, Toshiaki Hisada
  • Publication number: 20080120078
    Abstract: A modeling device is disclosed that easily projects characteristic information obtained from an object onto a differently-shaped object, even if the object, from which the characteristic information is obtained, has a complex shape. A modeling device in one embodiment of the present invention includes a virtually electrifying section to calculate an electric potential at a spot in a heart at the time when a predetermined voltage is applied to the heart, and a projecting section to project a fiber orientation onto a heart model created on the basis of shape information that is input to the input section. The projecting section specifies a spot to be a target of projection on the basis of the electric potential obtained by the virtually electrifying section. Use of the electric potential in specifying the spot makes it possible to easily project the fiber orientation onto any heart having complex and various shapes.
    Type: Application
    Filed: January 25, 2006
    Publication date: May 22, 2008
    Inventors: Toshiaki Hisada, Hiroshi Kurokawa, Nobuhiko Oshida, Masafumi Yamamoto, Takumi Washio, Jun-ichi Okada, Hiroshi Watanabe, Seiryo Sugiura
  • Publication number: 20030130829
    Abstract: A numerical model related to fluttering of an insect, when an equivalent model of actual structure of a wing of the insect is moved in the air in accordance with a model of fluttering motion of the wing of the insect is calculated by fluid-structure interactive analysis, in which behavior of the wing and behavior of the air are given as numerical values, including interaction therebetween. Thereafter, a method of controlling a fluttering robot, wing shape and the like are determined by modifying numerical models of fluttering of an insect prepared by fluid-structure interactive analysis, in accordance with sensitivity analysis. Accordingly, a method of preparing numerical models of wing and air considering the behavior of the wing of the insect in the air is provided and, in addition, a method of manufacturing a fluttering robot utilizing the numerical model prepared by this method of preparing numerical model can be provided.
    Type: Application
    Filed: November 19, 2002
    Publication date: July 10, 2003
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masaki Hamamoto, Yoshiji Ohta, Keita Hara, Toshiaki Hisada
  • Publication number: 20030125644
    Abstract: A numerical model related to fluttering of an insect, when an equivalent model of actual structure of a wing of the insect is moved in the air in accordance with a model of fluttering motion of the wing of the insect is calculated by fluid-structure interactive analysis, in which behavior of the wing and behavior of the air are given as numerical values, including interaction therebetween. Thereafter, a method of controlling a fluttering robot, wing shape and the like are determined by modifying numerical models of fluttering of an insect prepared by fluid-structure interactive analysis, in accordance with sensitivity analysis. Accordingly, a method of preparing numerical models of wing and air considering the behavior of the wing of the insect in the air is provided and, in addition, a method of manufacturing a fluttering robot utilizing the numerical model prepared by this method of preparing numerical model can be provided.
    Type: Application
    Filed: October 11, 2002
    Publication date: July 3, 2003
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masaki Hamamoto, Yoshiji Ohta, Keita Hara, Toshiaki Hisada