Patents by Inventor Masashi Kubota

Masashi Kubota 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: 11364974
    Abstract: A hydrofoil craft includes a hull including a bottom that spreads from a bow to a stern; and a hydrofoil mechanism provided on the bow side of the hull. The hull further includes an accommodating recess formed therein, and the accommodating recess is recessed toward the stern side between the bow and the bottom to accommodate the hydrofoil mechanism. A retreat surface is formed between the bottom and a recess main surface facing the bow side in the accommodating recess, and the retreat surface extends toward the stern side in a downward direction and is connected to the bottom.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: June 21, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsuhiko Shoda, Masaya Kubota, Takashi Okafuji, Masashi Sasaki
  • Publication number: 20220163410
    Abstract: A sensor includes a film portion deformable by external force, a support body supporting the film portion, and a magnetoresistive element portion on the film portion and including a unit element that includes a first magnetic layer whose magnetization direction changes in accordance with deformation of the film portion, a second magnetic layer whose magnetization direction is fixed, and an intermediate layer between the first and second magnetic layers. The film portion includes a first side portion in a portion of an outer edge of the film portion. A slit portion is provided in the film portion and includes at least a portion along the first side portion, so that the film portion includes a connection portion in which the first side portion is partially connected to the support body. A magnetoresistive element portion is provided in the connection portion.
    Type: Application
    Filed: February 11, 2022
    Publication date: May 26, 2022
    Inventors: Masashi KUBOTA, Ville KAAJAKARI, Masaki TAKEUCHI
  • Patent number: 11316466
    Abstract: A rotation angle estimation unit calculates a rotation angle of a rotor from a d-axis current and a q-axis current that flow into a motor of an onboard fluid machine and from a d-axis voltage command value and a q-axis voltage command value. A correction unit of an inverter device applies a pulse voltage to the motor when the motor is in a stopped state. Further, the correction unit corrects a parameter for control of the motor in accordance with a comparison result of the d-axis current and the q-axis current, which flow into the motor when the pulse voltage is applied.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: April 26, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masashi Kubota, Takashi Kawashima, Kazuki Najima
  • Publication number: 20220109775
    Abstract: A printing system includes a first printing unit that performs printing using a material that exhibits structural color, based on first data, a second printing unit that performs printing using a material that includes pigment, based on second data, and a control apparatus that outputs the first data and the second data; he first data causes the first printing unit to print the first personal information items of a first information group in respective regions, and an item of identification information linked to the first information group; and the second data causes the second printing unit to print the second personal information items of a second information group linked to the item of identification information on the corresponding respective regions on which the first personal information items corresponding to the respective second personal information items have been printed.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: TOPPAN INC.
    Inventors: Tomoyuki MARUGAME, Masashi KUBOTA
  • Publication number: 20220105732
    Abstract: A head unit is used for production of a media sheet that has a medium region row including a plurality of medium regions, the medium regions being to be separate personal information media. The head unit includes a plurality of thermal heads configured to thermally transfer dots exhibiting a structural color from a ribbon to a target. The plurality of thermal heads are arranged so that each thermal head corresponds to a respective one of the medium regions constituting the medium region row.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: TOPPAN INC.
    Inventors: Masashi KUBOTA, Tomoyuki MARUGAME
  • Patent number: 11249116
    Abstract: A magnetic sensor includes a substrate, and a magneto-resistive element portion which is provided on the substrate and has a predetermined magneto-sensitive direction, and in which a bias magnetic field is applied in a direction orthogonal or substantially orthogonal to the magneto-sensitive direction. The magneto-resistive element portion includes a magnetic layer having a negative magneto-striction constant, and stress-induced anisotropy of the magnetic layer develops in a direction parallel or substantially parallel to the direction of the bias magnetic field in response to a tensile stress act on the substrate in a direction parallel or substantially parallel to the magneto-sensitive direction.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: February 15, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Masashi Kubota, Yoshimitsu Ushimi, Tetsuzo Hara
  • Publication number: 20220011481
    Abstract: A display of the present invention includes a multilayer film and at least one reflective surface. The multilayer film includes a laminate of at least two dielectric layers having refractive indices different from each other, and the laminate has a first major surface and a second major surface. The laminate has at least one recess formed in the first major surface. At least one reflective surface which faces the second major surface of the laminate, and is configured to direct light in a visible range, which has entered the multilayer film and then emerged at an angle of emergence from the second major surface, to be incident on the second major surface at an angle of incidence which is different from the angle of emergence of the light.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventor: Masashi KUBOTA
  • Patent number: 11222574
    Abstract: A method when expressing gradation for a color image including binarizing tone values of first image data to produce second image data including pixels each having colors with respective binarized tone values, classifying pixels of the first image data into a plurality of first pixel groups and specifying a pixel where a color centroid is positioned for each color in each first pixel group, classifying pixels of the second image data into second pixel groups PXG2 corresponding to the first pixel groups and calculating the number of light pixels for each color in each second pixel group, producing third image data from the second image data, information related to the color centroid, and information related to the number of light pixels, and producing fourth image data by changing the position of a light pixel with the position of a dark pixel in the third image data.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: January 11, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Masashi Kubota
  • Publication number: 20210405132
    Abstract: A magnetic sensor includes an angle sensor including first magnetoresistive elements and producing an output based on an angle between a direction of an external magnetic field and a reference direction, and a magnetic field strength sensor including second magnetoresistive elements and producing an output based on a strength of the external magnetic field. The angle sensor and the magnetic field strength sensor have a same or substantially a same direction of normal to a reference surface for sensor formation. The magnetic field strength sensor has different output characteristics in accordance with the angle between the direction of the external magnetic field and the reference direction. Based on the angle between the direction of the external magnetic field and the reference direction detected by the angle sensor and the output from the magnetic field strength sensor, the strength of the external magnetic field is determined.
    Type: Application
    Filed: September 9, 2021
    Publication date: December 30, 2021
    Inventor: Masashi KUBOTA
  • Publication number: 20210382123
    Abstract: A magneto-resistive element includes a first element section including a first unit element and a second element section including a second unit element. The first element section is connected to the second element section in series. The first unit element includes a first reference layer with a magnetization that is fixed in an in-plane direction, and a first free layer including a vortex magnetization. The second unit element includes a second reference layer with a magnetization that is fixed in an in-plane direction, and a second free layer including a vortex magnetization. A direction of the fixed magnetization of the first reference layer is opposite to that of the second reference layer.
    Type: Application
    Filed: August 19, 2021
    Publication date: December 9, 2021
    Inventors: Masashi KUBOTA, Korekiyo ITO
  • Publication number: 20210281714
    Abstract: A method of generating image data by acquiring first image data having a tone value of each pixel for each color and generating second image data. Generating the second image data by selecting a first pixel of the first image data; binarizing the tone value of the first pixel in response to a comparison result showing that the tone value of the first pixel is greater than the first threshold, binarizing the tone value of the first pixel in response to a comparison result showing that the tone value of the first pixel is smaller than the second threshold, and binarizing the tone value of the first pixel in response to a comparison result showing that the tone value of the first pixel is equal to or less than the first threshold and is equal to or greater than the second threshold.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventor: Masashi KUBOTA
  • Publication number: 20210043128
    Abstract: A method when expressing gradation for a color image including binarizing tone values of first image data to produce second image data including pixels each having colors with respective binarized tone values, classifying pixels of the first image data into a plurality of first pixel groups and specifying a pixel where a color centroid is positioned for each color in each first pixel group, classifying pixels of the second image data into second pixel groups PXG2 corresponding to the first pixel groups and calculating the number of light pixels for each color in each second pixel group, producing third image data from the second image data, information related to the color centroid, and information related to the number of light pixels, and producing fourth image data by changing the position of a light pixel with the position of a dark pixel in the third image data.
    Type: Application
    Filed: October 28, 2020
    Publication date: February 11, 2021
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventor: Masashi KUBOTA
  • Publication number: 20200241052
    Abstract: A magnetic sensor includes a substrate, and a magneto-resistive element portion which is provided on the substrate and has a predetermined magneto-sensitive direction, and in which a bias magnetic field is applied in a direction orthogonal or substantially orthogonal to the magneto-sensitive direction. The magneto-resistive element portion includes a magnetic layer having a negative magneto-striction constant, and stress-induced anisotropy of the magnetic layer develops in a direction parallel or substantially parallel to the direction of the bias magnetic field in response to a tensile stress act on the substrate in a direction parallel or substantially parallel to the magneto-sensitive direction.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: Masashi KUBOTA, Yoshimitsu USHIMI, Tetsuzo HARA
  • Publication number: 20190305711
    Abstract: A rotation angle estimation unit calculates a rotation angle of a rotor from a d-axis current and a q-axis current that flow into a motor of an onboard fluid machine and from a d-axis voltage command value and a q-axis voltage command value. A correction unit of an inverter device applies a pulse voltage to the motor when the motor is in a stopped state. Further, the correction unit corrects a parameter for control of the motor in accordance with a comparison result of the d-axis current and the q-axis current, which flow into the motor when the pulse voltage is applied.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masashi Kubota, Takashi Kawashima, Kazuki Najima
  • Patent number: 10275042
    Abstract: The character input keyboard. One shift key and one space key are placed on the home position of the left and right thumb, and one control key is placed between them. These keys have the width from 1 to 1.5 times of the character key.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: April 30, 2019
    Inventor: Masashi Kubota
  • Publication number: 20170351340
    Abstract: The character input keyboard. One shift key and one space key are placed on the home position of the left and right thumb, and one control key is placed between them. These keys have the width from 1 to 1.5 times of the character key.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 7, 2017
    Inventor: Masashi KUBOTA
  • Publication number: 20170140072
    Abstract: A method determines a configuration of a model. The model, includes entities feat satisfy constraints. Variables represent the entities and each constraint, corresponds to constraint equations. The constraints equations interrelate a subset of variables. At least one tree is generated. The tree includes a root node and she root node has at least one child. Nodes having a child node define parent nodes. Nodes lacking child nodes define leaf nodes. Each node corresponds to a subset of the constraint equations. Constraint equations of a subset of leaf nodes are satisfied in parallel. Constraint equations of parent nodes with satisfied child nodes are satisfied based on the satisfied constraint equations of the corresponding child nodes. Constraint equations are satisfied until the constraint equations of the root node are satisfied. Satisfied constraint equations of each parent node are propagated to corresponding child nodes. Entities of the determined configuration are output for display.
    Type: Application
    Filed: June 17, 2015
    Publication date: May 18, 2017
    Inventor: Masashi KUBOTA
  • Publication number: 20160223413
    Abstract: The stress sensor includes: a magnetic material; a stress applied portion on the magnetic material; a magnet disposed so as to be adjacent to by a magnetic material; a magnetic sensor disposed via the magnetic material so as to be opposed to the stress applied portion, wherein the magnetic sensor detects a magnetic flux emitted from a magnetic domain generated in the magnetic material by a local stress applied to the stress applied portion. The local stress or stress distribution can be detected with a convenience structure, and can obtain a high spatial resolution by using a stress response phenomenon of a single magnetic domain.
    Type: Application
    Filed: December 30, 2015
    Publication date: August 4, 2016
    Inventors: Masashi KUBOTA, Masashi KAWASAKI, Yoshinori TOKURA
  • Publication number: 20150155684
    Abstract: A method for manufacturing a semiconductor laser device includes preparing an original substrate having a plurality of semiconductor laser device regions arrayed in a matrix, and a plurality of ridges formed in stripes so as to pass through each of the plurality of semiconductor laser device regions that are aligned in one direction. A scribing process is applied to the original substrate along cutting lines set along boundaries of the plurality of semiconductor laser device regions from a rear surface at an opposite side of a top surface at which the ridges are formed. A blade is applied to the original substrate along each cutting line from the top surface of the original substrate for dividing the original substrate along the cutting line.
    Type: Application
    Filed: February 10, 2015
    Publication date: June 4, 2015
    Inventors: Junichi KASHIWAGI, Kuniyoshi OKAMOTO, Taketoshi TANAKA, Masashi KUBOTA
  • Patent number: 8789076
    Abstract: A transportation body 1 for a flexible optical disk 10 has flexibility, and includes a rotation stabilizing board 2 having a disk-shaped form, an optical disk alignment unit 4 installed in the central part of the rotation stabilizing board 2, and a spacer 3 installed on a surface of the rotation stabilizing board 2. A combination of the transportation body 1 and the optical disk 10 can be treated as an equivalent of a conventional optical disk having rigidity, by transporting the flexible optical disk 10 placed on the transportation body 1 and by recording/reproducing information onto/from the flexible optical disk.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: July 22, 2014
    Assignee: NEC Corporation
    Inventors: Masashi Kubota, Kenji Tagami, Hisaya Niizawa