Patents by Inventor Koji Shigemura

Koji Shigemura 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: 20220126290
    Abstract: A microdevice includes a plurality of calibration curve liquids, a plurality of first microchannels respectively filled with the plurality of calibration curve liquids, at least one second microchannel filled with a measurement target liquid, and a sealing member that closes openings of the first microchannels to seal the calibration curve liquids. Each of the calibration curve liquids includes a measurement target substance of a predetermined concentration, the predetermined concentration in each of the plurality of calibration curve liquid being mutually different, an antibody that specifically binds to the measurement target substance, and a fluorescent-labeling derivative that fluorescently labels the measurement target substance and competes with the measurement target substance to specifically bind to the antibody. The measurement target liquid includes an unknown concentration of the measurement target substance, the antibody, and the fluorescent-labeling derivative.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 28, 2022
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Chikaaki MIZOKUCHI, Koji Shigemura, Ken Sumiyoshi
  • Publication number: 20220042959
    Abstract: An optical detection type chemical sensor includes a light source, a detection element and a photodetector. The detection element is constituted of a laminate in which a multilayer film including a chemical detection layer, an optical interference layer, and a half mirror layer is formed on a transparent substrate. At least one of the layers includes a magnetic material. Light from the light source is applied to the detection element under the condition that the light enters inside of the detection element from the rear surface of the transparent substrate on which the laminate is not formed and multiple reflection occurring in the laminate intensifies the magneto-optical effect. A subject is detected by using the photodetector to detect a magneto-optical signal indicating a change in reflected light from the laminate resulting from a change in an optical property resulting from a reaction in the chemical detection layer.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 10, 2022
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Haruki YAMANE, Kiyoshi YAMAKAWA, Shingo TAKAHASHI, Koki TAKAHASHI, Satoshi MIURA, Koji SHIGEMURA, Nobuya SEKO, Ken SUMIYOSHI
  • Patent number: 11243410
    Abstract: A display device comprises a projection device projecting a display image, an aerial imaging element, and a distribution mechanism in which distribution units are arranged at a given interval. An interval between the distribution units is determined according to a relationship between a number of view point pixels constituting a pixel unit, a number of pixel units, a distance from the pixel unit at a center to the pixel unit at an edge, a distance from a distribution unit at a center to the distribution unit at an edge, a pitch of the view point pixel, an angle of light from the pixel unit at the center emitted to the distribution unit, and an angle of the emitted light, an angle of light from the pixel unit at the edge emitted to the distribution unit, and an angle of the emitted light, a distance between the projection device and the distribution units, a refractive index of the distribution mechanism, a distance between the real image and an optimal viewing position for a viewer, and a projection width.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: February 8, 2022
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA JAPAN, LTD.
    Inventors: Tetsushi Sato, Kazunori Masumura, Koji Shigemura
  • Publication number: 20220034876
    Abstract: A microdevice includes: a microchannel to which a measurement target solution containing a measurement target substance is introduced; an antibody being fixed to at least one sidewall surface of the microchannel and specifically binding to the measurement target substance; a fluorescence-labeled derivative being specifically bound to the antibody and being acquired by fluorescence-labeling the measurement target substance; and a light blocker blocking excitation light exciting fluorescent light radiated by the fluorescence-labeled derivative. The measurement target substance and the fluorescence-labeled derivative specifically bind to the antibody in a competitive manner, and the antibody is fixed to the sidewall surface of the microchannel in a state of specifically binding to the fluorescence-labeled derivative. The light blocker blocks the excitation light entering the fluorescence-labeled derivative specifically binding to the antibody.
    Type: Application
    Filed: July 23, 2021
    Publication date: February 3, 2022
    Applicant: Tianma Japan, Ltd.
    Inventors: Chikaaki MIZOKUCHI, Koji Shigemura, Ken Sumiyoshi
  • Patent number: 11169394
    Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. Aperture parts of sub-pixels neighboring to a first direction include overlapping regions which overlap in a second direction and a non-overlapping region which does not overlap. Provided that a width of the aperture part in the second direction is defined as a longitudinal aperture width, the non-overlapping region includes an aperture width fluctuating region where the longitudinal aperture width changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal aperture widths of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal aperture width in roughly the center of the aperture part.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 9, 2021
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Takuya Asai, Koji Shigemura
  • Publication number: 20210341488
    Abstract: A fluorescence polarization immunoassay that uses a fluorescent labeling substance in which a single domain antibody is labeled with a fluorescent dye. A fluorescent labeling substance obtained by labeling a single domain antibody, such as a VHH antibody or a vNAR antibody, having a binding ability to a target substance with a fluorescent dye is used. The fluorescence polarization immunoassay includes a binding step for binding the fluorescent labeling substance to a target substance; and a measuring step for measuring a change in the fluorescence polarization of the fluorescent labeling substance to which the target substance is bound.
    Type: Application
    Filed: April 27, 2021
    Publication date: November 4, 2021
    Applicants: TOHOKU UNIVERSITY, Tianma Japan, Ltd., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Mao Fukuyama, Akihide Hibara, Ayuko Imai, Koji Shigemura, Manabu Tokeshi
  • Publication number: 20210319762
    Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. An aperture part includes overlapping regions which overlap with an aperture part or another aperture part neighboring to each other in a second direction and a non-overlapping region which does not overlap. Provided that a light amount emitted from a linear aperture of the aperture part in parallel to a second direction is “longitudinal light amount”, the non-overlapping region includes longitudinal light amount fluctuating regions where the longitudinal light amount changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal light amounts of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal light amount in roughly the center of the aperture part.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Takuya ASAI, Koji SHIGEMURA
  • Patent number: 11074876
    Abstract: To provide a naked-eye type stereoscopic display device which can achieve a fine stereoscopic display property while achieving high-definition display and high yield. An aperture part includes overlapping regions which overlap with an aperture part or another aperture part neighboring to each other in a second direction and a non-overlapping region which does not overlap. Provided that a light amount emitted from a linear aperture of the aperture part in parallel to a second direction is “longitudinal light amount”, the non-overlapping region includes longitudinal light amount fluctuating regions where the longitudinal light amount changes continuously from roughly a center of the aperture part towards both ends of the first direction, respectively. The sum of the longitudinal light amounts of the two overlapping regions overlapping with each other at a same position in the first direction is larger than the longitudinal light amount in roughly the center of the aperture part.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 27, 2021
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Takuya Asai, Koji Shigemura
  • Publication number: 20210200319
    Abstract: An electronic device having a display screen that displays a user interface including at least one object, comprising: a display mechanism that displays the user interface; a coordinate detection mechanism that detects coordinates of a user touch point on the display screen; a first feedback presentation mechanism that presents tactile feedback at a prescribed point to make the user perceive the presence of an object; a measurement mechanism that measures a force generated by the user pressing the display screen; and a second feedback presentation mechanism that detects an operation trigger based on the force and generates mechanical vibration.
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicants: TIANMA JAPAN, LTD., Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yiping YANG, Hiroshi HAGA, Harue SASAKI, Daisuke SUGIMOTO, Takuya ASAI, Koji SHIGEMURA
  • Publication number: 20210200320
    Abstract: An electronic device having a display screen that displays a user interface including at least one object, comprising a display mechanism that displays the user interface; a coordinate detection mechanism that detects coordinates of a user touch point on the display screen; a first feedback presentation mechanism that presents tactile feedback at a prescribed point to make the user perceive the presence of an object; a measurement mechanism that measures a force generated by the user pressing the display screen; and a second feedback presentation mechanism that detects an operation trigger based on the force and generates mechanical vibration.
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicants: TIANMA JAPAN, LTD., Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yiping YANG, Hiroshi HAGA, Harue SASAKI, Daisuke SUGIMOTO, Takuya ASAI, Koji SHIGEMURA
  • Patent number: 11002985
    Abstract: A display device includes a display panel including a plurality of pixels arrayed along first and second directions, a distribution unit that distributes light emitted from each pixel configured to display a parallax image corresponding to each of a plurality of viewpoints, and a light blocking unit between the display panel and the distribution unit. The distribution unit distributes light emitted from each of the pixels to the plurality of viewpoints along the first direction in a first display state where the display panel displays a parallax image, or stops distributing emitted light in a second display state, displaying a planar image. The light blocking unit forms, along the first direction, a plurality of first light blocking areas each extending along the second direction blocking some emitted light in the first display state, and stops forming the first light blocking areas in the second display state.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 11, 2021
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Jin Matsushima, Koji Shigemura, Yukie Keicho, Tetsushi Sato
  • Publication number: 20210117004
    Abstract: A tactile presentation device includes a touch surface fixed in orientation, an actuator configured to vibrate the touch surface along one axis within the plane of the touch surface, and a controller configured to control vibration of the actuator along the one axis to present tactile stimulus to a finger in contact with the touch surface. The controller is configured to control the actuator in such a manner that direction to start vibration for presenting tactile stimulus to the finger is within a range from minus 43° to plus 43° with respect to a direction of gravity projected on the touch surface or the opposite direction thereof.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 22, 2021
    Applicants: Wuhan Tianma Micro-Electronics Co., Ltd., TIANMA JAPAN, LTD.
    Inventors: Harue Sasaki, Hiroshi Haga, Koji Shigemura, Hirotsugu Yamamoto
  • Patent number: 10976823
    Abstract: An electronic device having a display screen that displays a user interface including at least one object, comprising: a display mechanism that displays the user interface; a coordinate detection mechanism that detects coordinates of a user touch point on the display screen; a first feedback presentation mechanism that presents tactile feedback at a prescribed point to make the user perceive the presence of an object; a measurement mechanism that measures a force generated by the user pressing the display screen; and a second feedback presentation mechanism that detects an operation trigger based on the force and generates mechanical vibration.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: April 13, 2021
    Assignees: TIANMA JAPAN, LTD., Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Yiping Yang, Hiroshi Haga, Harue Sasaki, Daisuke Sugimoto, Takuya Asai, Koji Shigemura
  • Patent number: 10942382
    Abstract: Provided is a microlouver (optical element) having a transparent layer inclined to attain a desired viewing angle. The optical element includes patterned transparent layer and light absorbing layer on a transparent substrate. At least a part of the members of the transparent layer and the light absorbing layer are inclined with respect to the normal to the plane of the transparent substrate where patterns of the transparent layer and the light absorbing layer are provided. The inclination satisfies |??(x)??(x)|<?, where ??(x) represents a first angle which is an outgoing angle of light transmitted through the transparent layer from the transparent substrate at a point x on the plane, ?(x) represents a second angle which is an angle of sight of an observer, and ? represents a third angle which is a threshold angle to attain the lowest desired brightness.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 9, 2021
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Koji Shigemura, Kunihiro Shiota
  • Patent number: 10908693
    Abstract: A tactile presentation device includes a touch surface fixed in orientation, an actuator configured to vibrate the touch surface along one axis within the plane of the touch surface, and a controller configured to control vibration of the actuator along the one axis to present tactile stimulus to a finger in contact with the touch surface. The controller is configured to control the actuator in such a manner that direction to start vibration for presenting tactile stimulus to the finger is within a range from minus 43° to plus 43° with respect to a direction of gravity projected on the touch surface or the opposite direction thereof.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: February 2, 2021
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., TIANMA JAPAN, LTD.
    Inventors: Harue Sasaki, Hiroshi Haga, Koji Shigemura, Hirotsugu Yamamoto
  • Publication number: 20200388231
    Abstract: An image update determining unit compares a previously set temperature with a temperature estimated by a temperature increase estimating unit, and determines whether or not an image update operation is executable, and an image update interval is appropriately set according to the estimated temperature by performing image update on an image to be displayed next when the image update determining unit determines the image update operation to be executable but not performing image update when the image update determining unit determines the image update operation to be non-executable.
    Type: Application
    Filed: August 14, 2020
    Publication date: December 10, 2020
    Applicant: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Tetsushi SATO, Kazunori MASUMURA, Koji SHIGEMURA
  • Publication number: 20200341292
    Abstract: A display device comprises a projection device projecting a display image, an aerial imaging element, and a distribution mechanism in which distribution units are arranged at a given interval. An interval between the distribution units is determined according to a relationship between a number of view point pixels constituting a pixel unit, a number of pixel units, a distance from the pixel unit at a center to the pixel unit at an edge, a distance from a distribution unit at a center to the distribution unit at an edge, a pitch of the view point pixel, an angle of light from the pixel unit at the center emitted to the distribution unit, and an angle of the emitted light, an angle of light from the pixel unit at the edge emitted to the distribution unit, and an angle of the emitted light, a distance between the projection device and the distribution units, a refractive index of the distribution mechanism, a distance between the real image and an optimal viewing position for a viewer, and a projection width.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Inventors: Tetsushi SATO, Kazunori MASUMURA, Koji SHIGEMURA
  • Patent number: 10783839
    Abstract: An image update determining unit compares a previously set temperature with a temperature estimated by a temperature increase estimating unit, and determines whether or not an image update operation is executable, and an image update interval is appropriately set according to the estimated temperature by performing image update on an image to be displayed next when the image update determining unit determines the image update operation to be executable but not performing image update when the image update determining unit determines the image update operation to be non-executable.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: September 22, 2020
    Assignee: TIANMAN MICROELECTRONICS CO., LTD.
    Inventors: Tetsushi Sato, Kazunori Masumura, Koji Shigemura
  • Publication number: 20200264704
    Abstract: A tactile presentation device includes a touch surface fixed in orientation, an actuator configured to vibrate the touch surface along one axis within the plane of the touch surface, and a controller configured to control vibration of the actuator along the one axis to present tactile stimulus to a finger in contact with the touch surface. The controller is configured to control the actuator in such a manner that direction to start vibration for presenting tactile stimulus to the finger is within a range from minus 43° to plus 43° with respect to a direction of gravity projected on the touch surface or the opposite direction thereof.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 20, 2020
    Applicant: Tianma Japan, Ltd.
    Inventors: Harue SASAKI, Hiroshi Haga, Koji Shigemura, Hirotsugu Yamamoto
  • Patent number: 10718953
    Abstract: A substrate laminating apparatus, including a first vacuum chamber including a first opening; a first table provided inside the first opening for holding a first substrate; a second vacuum chamber including a second opening; a second table provided inside the second opening for holding a second substrate, wherein the substrates are laminated by reducing a pressure in a closed space formed by having the first opening faced with the second opening. The apparatus also includes a vacuum evacuation unit connected to the first vacuum chamber or the second vacuum chamber and performs reduced-pressure evacuation of the closed space. When there is a direction along which priority is given on lamination precision when laminating the first and second substrates, and the direction is defined as a lamination precision priority direction, a reduced-pressure evacuation direction done by the vacuum evacuation unit is a direction different from the lamination precision priority direction.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: July 21, 2020
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Tetsuroh Asakura, Koji Shigemura