Patents by Inventor Yasushi Sakurai

Yasushi Sakurai 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: 20230229980
    Abstract: A forecasting apparatus forecasts an event after a predetermined time, based on a current window being a part of time-series data in multidimension. The forecasting apparatus includes a non-linear transformation unit including a matrix for non-linear transformation, an observation matrix, and a seasonality setting unit. The non-linear transformation unit transforms the time-series data of the current window in a part of dimensions that are related to trends and the time-series data of the current window in a part of dimensions that are related to seasonal intensity into latent first data showing the trends and latent second data showing the seasonal intensity.
    Type: Application
    Filed: June 30, 2021
    Publication date: July 20, 2023
    Inventors: Koki KAWABATA, Yasuko SAKURAI, Takato HONDA, Yasushi SAKURAI
  • Publication number: 20230058585
    Abstract: An event forecasting system includes a feature amount extracting unit and a forecasting unit. The feature amount extracting unit continuously extracts model parameters {m, r, S, ?, F} of dynamic patterns in a time direction and a facility direction from a multidimensional time-series tensor X of time-series sensor data collected for every period n from a plurality of types d of sensors respectively disposed at a plurality w of facilities of a factory, and further sequentially featurizes the multidimensional time-series tensor X into summary information {Z, ?} including modeling information Z and error information ? of the modeling information by use of the model parameter {m, r, S, ?, F}. The forecasting unit outputs a probability p of occurrence of an alert label y at a predetermined time Is ahead by use of the summary information {Z, ?} as an input.
    Type: Application
    Filed: January 12, 2021
    Publication date: February 23, 2023
    Inventors: Takato HONDA, Yasuko SAKURAI, Koki KAWABATA, Yasushi SAKURAI
  • Patent number: 11438277
    Abstract: An allocation method executed by a computer includes dividing each of a plurality of pieces of time-series data into a plurality of segments, allocating a label to each of the pieces of time-series data based on features of each segment in the pieces of time-series data, and allocating a predetermined segment in time-series data, included in the pieces of time-series data, with a label allocated to the time-series data to which the predetermined segment belongs.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: September 6, 2022
    Assignees: FUJITSU LIMITED, NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Yasushi Sakurai, Yasuko Matsubara, Yasuaki Irifune, Saeru Yamamuro, Kouki Kawabata, Akira Ura, Takashi Katoh, Yuhei Umeda
  • Publication number: 20220269959
    Abstract: A forecasting apparatus includes: a regime update unit configured to perform optimization processing that applies a candidate regime ? to an event stream in a most recent current window Xc, and adjusts a parameter of a model M of the applied regime to reduce a difference from an event; a forecasting unit configured to use the model subjected to the optimization processing by the regime update unit to forecast future event information; and a storage that stores transition information that indicates transition history between regimes. The regime update unit determines whether or not the regime ? being applied satisfies a transition condition, and if the determination is affirmative, uses the transition information for the regime being applied that is stored in the storage to let the regime transition from ?1 to ?2.
    Type: Application
    Filed: July 30, 2020
    Publication date: August 25, 2022
    Inventors: Yasuko SAKURAI, Yasushi SAKURAI
  • Publication number: 20200280525
    Abstract: An allocation method executed by a computer includes dividing each of a plurality of pieces of time-series data into a plurality of segments, allocating a label to each of the pieces of time-series data based on features of each segment in the pieces of time-series data, and allocating a predetermined segment in time-series data, included in the pieces of time-series data, with a label allocated to the time-series data to which the predetermined segment belongs.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 3, 2020
    Inventors: Yasushi SAKURAI, Yasuko MATSUBARA, Yasuaki IRIFUNE, Saeru YAMAMURO, Kouki KAWABATA, Akira URA, TAKASHI KATOH, YUHEI UMEDA
  • Publication number: 20190294740
    Abstract: A forecasting apparatus or the like is proposed, which provides high-precision long-term forecasting using a large-scale time-series data stream. The forecasting apparatus includes a current window calculation unit, a regime updating unit, and a regime inserting unit, in order to handle a nested multi-level data stream structure. A mathematical model identified by a parameter set stored in a parameter set storage unit includes a non-linear component, which allows a non-linear pattern of the data stream to be represented. The regime updating unit updates the parameter set so as to provide forecasting based on a non-linear dynamical system. Furthermore, the regime inserting unit inserts a new pattern (regime) for the data stream. The regime updating unit uses a regime shift, which is a transition from a regime to another regime that occurs in the event stream. This provides high-precision long-term forecasting.
    Type: Application
    Filed: July 11, 2017
    Publication date: September 26, 2019
    Inventors: Yasuko MATSUBARA, Yasushi SAKURAI
  • Publication number: 20100053058
    Abstract: A display device in which a non-display region where drain lines, gate lines and pixels are not formed is formed at a portion within a display region which is constituted of a mass of the pixels, drain route-around lines and gate route-around lines are formed by routing the drain lines and the gate lines separated by the non-display region around the non-display region, a line width of at least one of the drain route-around line and the gate route-around line is set such that the line width at an intersecting portion where the drain route-around line and the gate route-around line intersect with each other differs from the line width at a non-intersecting portion.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Inventors: Osamu Nagashima, Nobuyuki Ishige, Yasushi Sakurai
  • Patent number: 7186910
    Abstract: A plurality of play style dependence tone colors belonging to one kind of musical instrument tone color but being different from one another in terms of play styles are respectively assigned to different values of velocity and note number. For example, play style dependence tone colors such as open soft and open middle of a steel guitar are assigned to tone pitch ranges C2 to B5, and the play style dependence tone colors are respectively assigned to different velocity values. Play style dependence tone colors such as strumming and fret noise of a steel guitar are assigned to tone pitch ranges C6 to G8, and the play style dependence tone colors are respectively assigned to different note number values. By setting the note number and velocity values in note-on event data in various ways, musical tone signals of various play style dependence tone colors are generated even if the program change and bank select data are not changed.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: March 6, 2007
    Assignee: Yamaha Corporation
    Inventors: Yasushi Sakurai, Thomas Koritke
  • Publication number: 20030172799
    Abstract: A plurality of play style dependence tone colors belonging to one kind of musical instrument tone color but being different from one another in terms of play styles are respectively assigned to different values of velocity and note number. For example, play style dependence tone colors such as open soft and open middle of a steel guitar are assigned to tone pitch ranges C2 to B5, and the play style dependence tone colors are respectively assigned to different velocity values. Play style dependence tone colors such as strumming and fret noise of a steel guitar are assigned to tone pitch ranges C6 to G8, and the play style dependence tone colors are respectively assigned to different note number values. By setting the note number and velocity values in note-on event data in various ways, musical tone signals of various play style dependence tone colors are generated even if the program change and bank select data are not changed.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 18, 2003
    Applicant: Yamaha Corporation
    Inventors: Yasushi Sakurai, Thomas Koritke
  • Patent number: 5373097
    Abstract: An electronic musical instrument is disclosed wherein the musical tone parameter such as the tone volume, tone color, acoustic reverberation, pan-pot and the like can be varied over time. The invention provides an electronic musical instrument including an operational device, a memory, a readout section, a control section and a tone generator. The operational device can be implemented in a stick type operator for example. The operational device generates operational data which vary over time in response to operations applied thereto. The operational data generated by operational device are consecutively stored in the memory. The readout section can be implemented in a CPU for example and consecutively reads out the operational data from the memory. The control section can be implemented in a CPU for example and generates a musical tone parameter which varies over time on the basis of data consecutively read out from the memory.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: December 13, 1994
    Assignee: Yamaha Corporation
    Inventors: Kotaro Mizuno, Yasushi Kurakake, Yasushi Sakurai
  • Patent number: 5229533
    Abstract: An instrument for storing musical playing data includes tone color assignment switch for assigning each of the designated tone colors to each of the recording tracks and record control device for recording the musical playing data into the recording tracks simultaneously with the assigned tone color thereto (DUAL mode). Also the record control device can be a device for recording the musical playing data into the recording track, with the assigned tone color thereto, to which the tone range, for example the left side tone range or the right side tone range of a keyboard, including the tone pitch of the musical playing data is preliminarily assigned (SPLIT mode). As a plurality of recording tracks are used in recording with the both modes, it allows a player to edit the data easily.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: July 20, 1993
    Assignee: Yamaha Corporation
    Inventor: Yasushi Sakurai
  • Patent number: 4590783
    Abstract: A press forming process is composed of a step of removing wrinkles of the surface of a curved elongate flat sheet metal workpiece which has been prepared by a so-called edge bending process. The wrinkle removing step is carried out prior to a U-shape bending step in which the workpiece is bent to have a U-shaped cross-section in order to obtain an curved elongate channel-shaped article, thereby improving the quality of the resulting article while preventing press dies from being damaged.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: May 27, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Tanaka, Sotozi Mitani, Yasushi Sakurai
  • Patent number: 4570474
    Abstract: A flat metal strip is placed horizontally on a base plate which is vertically movable between a ram and a bolster of a press. A bending die for bending the metal strip by applying pressure in the widthwise direction is fixed to a slide cam slidable horizontally on the base plate. The slide cam has a slide cam face abutting on a front cam face formed in a drive cam mounted on the bolster. When the ram is moved downwards, a cover plate fixed to the ram covers the metal strip, pushes the base plate and the slide cam downwards, and compels the slide cam to slide horizontally toward the metal strip with the aid of the front and slide cam faces to bend the metal strip with the bending die. On the other hand, the drive cam has a rear cam face abutting on a press cam face formed in a press cam fixed to the ram.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: February 18, 1986
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Tanaka, Sotozi Mitani, Yasushi Sakurai