Patents by Inventor Hitoshi Shimizu

Hitoshi 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).

  • Publication number: 20220398497
    Abstract: A control device according to one embodiment includes control means that selects an action at for controlling a people flow in accordance with a measure ? at each control step “t” of an agent in A2C by using a state st obtained by observation of a traffic condition about the people flow in a simulator and learning means that learns a parameter of a neural network which realizes an advantage function expressed by an action value function representing a value of selection of the action at in the state st under the measure ? and by a state value function representing a value of the state st under the measure ?.
    Type: Application
    Filed: November 6, 2019
    Publication date: December 15, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hitoshi SHIMIZU, Tomoharu IWATA
  • Patent number: 11520224
    Abstract: There is provided a projection lens that is mounted on a housing of a projection device including an electro-optical element. The projection lens comprises an optical system through which light passes, a second holding unit through which light parallel to a second optical axis passes and which is moved rotationally with respect to the housing, a third holding unit through which light parallel to a third optical axis obtained from bending of the second optical axis passes and which is moved rotationally with respect to the second holding unit, an electric drive unit that electrically controls rotational movement of the second holding unit with respect to the housing, rotational movement of the third holding unit with respect to the second holding unit, or drive of the optical system, and a cover part that covers the electric drive unit.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: December 6, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuo Kamigaki, Hitoshi Shimizu, Yasuto Kuroda, Hironobu Kayano
  • Patent number: 11480856
    Abstract: There is provided a projection lens that is mounted on a housing of a projection device including an electro-optical element. The projection lens includes a first holding frame through which light emitted from the housing passes, a second reflective part that refracts an optical axis of light emitted from the first holding frame and includes a pair of side surfaces facing each other, and a second holding frame that holds the second reflective part and includes a pair of first holes provided at positions corresponding to the pair of side surfaces; and each of the pair of side surfaces has a gap between itself and the second holding frame.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: October 25, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuo Kamigaki, Hitoshi Shimizu, Yasuto Kuroda, Hironobu Kayano
  • Publication number: 20220336095
    Abstract: A medical system of an aspect example includes a portable data storage, first information processing equipment, and telecommunication equipment. Medical information is stored in the portable data storage. The medical information includes authentication information of a subject who has undergone a medical examination and examination data acquired from the subject by the medical examination. The first information processing equipment is connected to a telecommunication network. The telecommunication equipment is configured to transmit at least part of the medical information stored in the portable data storage that has been moved to an available area of the telecommunication network, to the first information processing equipment via the telecommunication network.
    Type: Application
    Filed: June 1, 2020
    Publication date: October 20, 2022
    Applicant: Topcon Corporation
    Inventors: Hitoshi SHIMIZU, Hisashi TSUKADA
  • Publication number: 20220322935
    Abstract: An ophthalmic apparatus includes a light source, an illumination optical system, an optical scanner, an imaging optical system, and a controller. The illumination optical system is configured to generate slit-shaped illumination light using light from the light source. The optical scanner is configured to deflect the illumination light to guide the illumination light to a fundus of a subject's eye. The imaging optical system is configured to guide returning light of the illumination light from the fundus to an image sensor. The controller is configured to control the image sensor using a rolling shutter method.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Applicant: Topcon Corporation
    Inventors: Masaya SUZUKI, Masashi NAKAJIMA, Hitoshi SHIMIZU
  • Publication number: 20220280036
    Abstract: A slit lamp microscope of some aspect examples includes a scanner and a rendering processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect a plurality of cross sectional images. The rendering processor is configured to apply rendering to a three dimensional image created from the plurality of cross sectional images.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 8, 2022
    Applicant: Topcon Corporation
    Inventors: Jonathan LIU, Hitoshi SHIMIZU, Hisashi TSUKADA
  • Patent number: 11429017
    Abstract: An object of the present invention is to provide a projection apparatus capable of appropriately performing control relating to rotation of the projection lens. A projection apparatus according to a first aspect of the present invention includes a housing; a power supply; and a projection lens attached to the housing, the projection lens having a holder and a locking mechanism unit that brings rotation of the holder into a locked state or an unlocked state. Rotation of the holder is in the locked state when the power supply has been turned on. With the first aspect, since the power is turned on in a state in which the projection lens is not rotatable, the locked state can be safely unlocked by user's intention and the holder can be rotated.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: August 30, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Hitoshi Shimizu, Takeharu Omata
  • Publication number: 20220248953
    Abstract: A slit lamp microscope of an aspect example includes a scanner, a controller, and an image set creation processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect an image group. The controller is configured to control the scanner to apply two or more scans to the anterior segment. The image set creation processor is configured to create an image set by selecting a series of images corresponding to a scan area from two or more image groups collected by the scanner in the two or more scans.
    Type: Application
    Filed: June 1, 2020
    Publication date: August 11, 2022
    Applicant: Topcon Corporation
    Inventors: Hitoshi SHIMIZU, Kazuhiro OMORI, Hisashi TSUKADA
  • Publication number: 20220236263
    Abstract: A test device includes a specimen having a circular cross section that accommodates a test target, a specimen holding part that holds a plurality of the specimens in a row, light emitting elements in which light is incident on two adjacent specimens among the plurality of specimens, a first light guide path 46 that guides light emitted by the light emitting elements, and a second light guide path that is formed to have a smaller diameter than a diameter of the first light guide path and that guides the light emitted by the light emitting elements from the first light guide path to the specimen.
    Type: Application
    Filed: April 14, 2022
    Publication date: July 28, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Kaku IRISAWA, Yoshihiro SETO, Hitoshi SHIMIZU, Takahiro MIYATO
  • Patent number: 11392015
    Abstract: A projection lens that is mounted on a housing of a projection device including an electro-optical element includes a first holding unit which is connected to the housing and through which light parallel to a first optical axis serving as an optical axis corresponding to luminous flux incident from the housing passes, a second holding unit through which light parallel to a second optical axis obtained from bending of the light parallel to the first optical axis passes and which is rotated with respect to the first holding unit in a rotatable range less than 360°, a first rotation control unit that controls rotation of the second holding unit, and a first electric drive unit. The first rotation control unit is provided on a first outer peripheral surface of one of the first holding unit and the second holding unit. The first electric drive unit is provided on a second outer peripheral surface of the other of the first holding unit and the second holding unit.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: July 19, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuo Kamigaki, Hitoshi Shimizu, Yasuto Kuroda, Hironobu Kayano
  • Publication number: 20220222555
    Abstract: Assuming that a total number of N selection subjects n (n=1, . . . , N) each select any one of a total number of M selection targets m (m=1, . . . , M), parameter estimation means: inputs acceptable limits ?n,m of each selection subject n and calculates patience ?n and a preference vector ?n, the acceptable limits ?n,m indicating limits of congestion degrees of respective selection subjects m that are acceptable to the selection subject n, the patience ?n indicating the largest value of the acceptable limits ?n,m of the selection subject n with respect to the selection targets m, the preference vector ?n indicating preference of the selection subject n when selecting the selection targets m; and estimates parameters of a model for obtaining acceptable limits ?i,m of each of a total number of I(>N) selection subjects i (i=1, . . . , I) by using the calculated patience ?n and the calculated preference vector ?n.
    Type: Application
    Filed: May 21, 2019
    Publication date: July 14, 2022
    Inventors: Hitoshi SHIMIZU, Tatsushi MATSUBAYASHI, Akinori FUJINO, Hiroshi SAWADA
  • Publication number: 20220146270
    Abstract: A learning apparatus includes an input unit configured to input route information indicating a route including one or more paths of a plurality of paths and moving body number information indicating the number of moving bodies for a date and a time on a path to be observed among the plurality of paths, and a learning unit configured to learn a parameter of a model indicating a relationship between the number of moving bodies for each of the plurality of paths and the number of moving bodies for the route and a relationship between the numbers of moving bodies for the route at different dates and times by using the route information and the moving body number information.
    Type: Application
    Filed: February 12, 2020
    Publication date: May 12, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoharu IWATA, Hitoshi SHIMIZU
  • Publication number: 20220133144
    Abstract: A slit lamp microscope according to some aspect examples includes an illumination system and photographing system. The illumination system projects slit light onto an anterior segment of a subject's eye. The photographing system includes an optical system and an image sensor. The optical system directs light from the anterior segment onto which the slit light is being projected. The image sensor includes a light detecting surface that receives the light directed by the optical system. Further, a subject plane, a principal plane of the optical system, and the light detecting surface are arranged so as to satisfy a Scheimpflug condition. Here, the subject plane includes a focal point of the illumination system in which a position of the focal point is shifted on account of a refractive index of a tissue of the anterior segment.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 5, 2022
    Applicant: Topcon Corporation
    Inventors: Hitoshi SHIMIZU, Kazuhiro OHMORI
  • Patent number: 11320729
    Abstract: A projection apparatus having a light modulation element includes a main body; an optical unit that is rotatably supported by the main body and includes a projection optical system for projecting the spatially modulated light onto the projection surface, a first rotation member rotatably supported to the main body and a second rotation member rotatably supported to the first rotation member; a first sensor; a second sensor; a controller; and a regulation mechanism, and the regulation mechanism includes a moving member that is movable between a regulation position for regulating the rotation and a regulation release position for releasing the regulating of the rotation, and fixes the moving member at the regulation position in a case where the controller determines that the first rotation member and the second rotation member are in the predetermined specific rotation state.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: May 3, 2022
    Assignee: FUJIFILM Corporation
    Inventor: Hitoshi Shimizu
  • Publication number: 20220051034
    Abstract: A learning device includes: input means for inputting route information on a set of routes each constituted by one or more ways, and passing mobile object information that indicates the number of passing mobile objects on an observed way, out of the one or more ways, at each time point; and learning means for learning parameters of a model in which a travel speed of the mobile objects is taken into consideration, using the route information and the passing mobile object information.
    Type: Application
    Filed: December 3, 2019
    Publication date: February 17, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoharu IWATA, Naoki MARUMO, Hitoshi SHIMIZU
  • Publication number: 20210255529
    Abstract: There is provided a projection lens that is mounted on a housing of a projection device including an electro-optical element. The projection lens includes a first holding frame through which light emitted from the housing passes, a second reflective part that refracts an optical axis of light emitted from the first holding frame and includes a pair of side surfaces facing each other, and a second holding frame that holds the second reflective part and includes a pair of first holes provided at positions corresponding to the pair of side surfaces; and each of the pair of side surfaces has a gap between itself and the second holding frame.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 19, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuo KAMIGAKI, Hitoshi SHIMIZU, Yasuto KURODA, Hironobu KAYANO
  • Publication number: 20210255528
    Abstract: A projection lens that is mounted on a housing of a projection device including an electro-optical element includes a first holding unit which is connected to the housing and through which light parallel to a first optical axis serving as an optical axis corresponding to luminous flux incident from the housing passes, a second holding unit through which light parallel to a second optical axis obtained from bending of the light parallel to the first optical axis passes and which is rotated with respect to the first holding unit in a rotatable range less than 360°, a first rotation control unit that controls rotation of the second holding unit, and a first electric drive unit. The first rotation control unit is provided on a first outer peripheral surface of one of the first holding unit and the second holding unit. The first electric drive unit is provided on a second outer peripheral surface of the other of the first holding unit and the second holding unit.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 19, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuo KAMIGAKI, Hitoshi SHIMIZU, Yasuto KURODA, Hironobu KAYANO
  • Publication number: 20210250557
    Abstract: A projection apparatus capable of appropriately performing shift control of a projection image when a posture or a projection direction of a projection lens is changed by rotating the projection lens is provided.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Hitoshi SHIMIZU, Takeharu OMATA
  • Publication number: 20210250559
    Abstract: An object of the present invention is to provide a projection apparatus capable of appropriately performing control relating to a rotation state and/or a movement state of a projection lens. A projection apparatus according to an aspect of the present invention includes a housing; a light source; a control unit; and a projection lens attached to the housing, the projection lens having a holder, a detection unit that detects a rotation state of the holder, an emission optical system, and a locking mechanism unit that brings rotation of the holder into a locked state or an unlocked state. The projection lens is displaceable between a first position at which a rotation state of the holder is a housed state in which the emission optical system faces the housing and a second position at which the emission optical system does not face the housing by rotating the holder. The second position includes an upper position at which the emission optical system faces an upper side in a vertical direction.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Hitoshi SHIMIZU, Takeharu OMATA
  • Publication number: 20210247684
    Abstract: A projection lens includes a lens barrel that accommodates an optical system from which light incident from the housing exits, and that has a first rotary tube that rotates around an optical axis and a first fixed tube at which the first rotary tube is rotatably mounted; and a first conduction portion for realizing electrical conduction, the first conduction portion having a fixed electrode that is provided at the first fixed tube and a rotary electrode that is provided at the first rotary tube and that rotates as a result of rotating the first rotary tube, the rotary electrode being disposed at a position that faces the fixed electrode and contacting the fixed electrode at least at a rotation position that has been preset.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tetsuo KAMIGAKI, Hitoshi SHIMIZU, Yasuto KURODA, Hironobu KAYANO