Patents by Inventor Yuichi Kurosawa

Yuichi Kurosawa 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: 10090704
    Abstract: A display device of electric power system information comprises a display unit including a display screen; and a screen display control unit for controlling the display unit. The display screen includes a display area that is divided into a plurality of display cells each of which has a mapping function for showing relative positional relations. The display unit includes an electric power system diagram display function unit for displaying an electric system diagram that embodies the state of an electric power system being a monitoring target, a mapping item display function unit for displaying mapping display items in the background of the electric power system diagram using the display cells, and a menu display function for displaying menus and icons, which are used for selecting the mapping display items, on the display screen, and for accepting selection operations to the menus and icons on the display cells on the display screen.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: October 2, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuki Inuzuka, Takashi Matsubara, Yuichi Kurosawa, Kenta Tsukijishin, Hideyuki Kobayashi
  • Publication number: 20150054830
    Abstract: A display device of electric power system information comprises a display unit including a display screen; and a screen display control unit for controlling the display unit. The display screen includes a display area that is divided into a plurality of display cells each of which has a mapping function for showing relative positional relations. The display unit includes an electric power system diagram display function unit for displaying an electric system diagram that embodies the state of an electric power system being a monitoring target, a mapping item display function unit for displaying mapping display items in the background of the electric power system diagram using the display cells, and a menu display function for displaying menus and icons, which are used for selecting the mapping display items, on the display screen, and for accepting selection operations to the menus and icons on the display cells on the display screen.
    Type: Application
    Filed: February 21, 2012
    Publication date: February 26, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Tatsuki Inuzuka, Takashi Matsubara, Yuichi Kurosawa, Kenta Tsukijishin, Hideyuki Kobayashi
  • Patent number: 8310773
    Abstract: A toric motor includes a toric stator, a toric rotor configured to rotate along the stator, and a bearing configured to support the rotor so as to be rotatable relative to the stator, the bearing comprising a single-row four-point-contact angular ball bearing.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: November 13, 2012
    Assignee: Pentax Ricoh Imaging Company, Ltd
    Inventors: Yuichi Kurosawa, Hiroaki Suzuki
  • Patent number: 8208032
    Abstract: An image shake correction apparatus of a camera in which an object image is formed on an image sensor that is driven to move in first and second directions, which are orthogonal to each other, in a plane orthogonal to an optical axis to compensate for camera shake. The image shake correction apparatus includes a first table provided in a camera body to be movable in the first direction, and a second table which supports the image sensor and is movable in the second direction on the first table. At least one of the first table and the second table is supported by one guide bar and supported by a linear actuator which moves the one of the first table and the second table along the one guide bar, the one guide bar extending in a corresponding one of the first direction and the second direction.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: June 26, 2012
    Assignee: Pentax Ricoh Imaging Company, Ltd.
    Inventor: Yuichi Kurosawa
  • Patent number: 8149520
    Abstract: A rotary actuator includes a multi-polar magnet, in which north and south poles are alternately arranged in a circumferential direction, the multi-polar magnet being shaped into one of a circular ring and a circular arc member; and a coil body having coils which are provided around the multi-polar magnet to be capable of moving in the circumferential direction of the multi-polar magnet, each of the coils substantially lying on a plane that extends in a radial direction of the multi-polar magnet and orthogonal to the circumferential direction of the multi-polar magnet. The north and south poles of the multi-polar magnet are positioned apart from each other by a predetermined interval in the circumferential direction. Dimensions of each coil are predetermined so that length of each coil in the circumferential direction is associated with the predetermined interval. Predetermined currents are passed through the coils in a properly phased manner.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: April 3, 2012
    Assignee: Pentax Ricoh Imaging Company, Ltd.
    Inventor: Yuichi Kurosawa
  • Patent number: 8131140
    Abstract: A linear actuator includes a multipolar magnet configured such that an S pole and an N pole are linearly aligned in an alternating manner. The linear actuator also includes a coil body having a plurality of separate coil units integrally arranged in a lengthwise direction of the coil body, and being movable relative to the multipolar magnet. The linear actuator further includes a magnetic sensor that detects a position of the coil body along the lengthwise direction of the coil body with respect to the multipolar magnet, and an electrifying control circuit that individually controls currents to be supplied to the plurality of coil units based on the position of the coil body detected by the magnet sensor.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: March 6, 2012
    Assignee: Pentax Ricoh Imaging Company, Ltd.
    Inventor: Yuichi Kurosawa
  • Patent number: 8027577
    Abstract: A camera comprising a location sensor, a first recorder, a first calculator, and a first motor, is provided. The location sensor detects the present location of the camera. The first recorder records a past location. The past location is a location where an image was photographed at a previous point in time. The first calculator compares the present location of the camera with the past location. The first calculator calculates a first difference between the present location of the camera and the past location. The first monitor displays the calculated first difference.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: September 27, 2011
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Patent number: 7934878
    Abstract: A diaphragm driving device for a camera including a camera body and an interchangeable lens which is detachably attached to the camera body, wherein the interchangeable lens includes a diaphragm mechanism having an in-lens spring device for performing a stop-down operation, the in-lens-spring device having a spring constant. The camera body includes a diaphragm drive mechanism having a diaphragm drive motor and an in-body spring device, both of which are for making the diaphragm mechanism of the interchangeable lens perform the stop-down operation, and a controller for controlling a driving current which is supplied to the diaphragm drive motor in accordance with the spring constant of the in-lens spring device.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: May 3, 2011
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Publication number: 20110083112
    Abstract: An input apparatus including an input unit to which a predetermined motion image signal is input, a motion detection unit for detecting a motion from the motion image signal which is input to the input unit, a video signal processing unit for outputting a predetermined video signal, and a control unit, wherein if a hand revolving motion of an operator is detected, the control unit controls the video signal processing unit to output a predetermined first video signal in synchronism with the hand revolving motion in order to inform the operator of a detection situation of the revolving motion and to output a predetermined second video signal in synchronism with the first video signal in order to inform the operator of a progress situation of a manipulation until a predetermined manipulation is definitely fixed.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 7, 2011
    Inventors: Takashi MATSUBARA, Yuichi Kurosawa
  • Publication number: 20110007408
    Abstract: A toric motor includes a toric stator, a toric rotor configured to rotate along the stator, and a bearing configured to support the rotor so as to be rotatable relative to the stator, the bearing comprising a single-row four-point-contact angular ball bearing.
    Type: Application
    Filed: January 19, 2010
    Publication date: January 13, 2011
    Applicant: HOYA CORPORATION
    Inventors: Yuichi KUROSAWA, Hiroaki SUZUKI
  • Publication number: 20100329653
    Abstract: A camera comprising a location sensor, a first recorder, a first calculator, and a first motor, is provided. The location sensor detects the present location of the camera. The first recorder records a past location. The past location is a location where an image was photographed at a previous point in time. The first calculator compares the present location of the camera with the past location. The first calculator calculates a first difference between the present location of the camera and the past location. The first monitor displays the calculated first difference.
    Type: Application
    Filed: February 1, 2010
    Publication date: December 30, 2010
    Applicant: HOYA CORPORATION
    Inventor: Yuichi KUROSAWA
  • Publication number: 20100322606
    Abstract: A linear actuator including a multipolar magnet configured such that an S pole and an N pole are linearly aligned in an alternating manner, coil body having a plurality of separate coil units integrally arranged in a lengthwise direction of the coil body being provided to be movable relatively with respect to the multipolar magnet, a magnetic sensor that detects a position of the coil body along the lengthwise direction of the coil body with respect to the multipolar magnet, and an electrifying control circuit that individually controls currents to be supplied to the plurality of coil units based on the position of the coil body detected by the magnet sensor.
    Type: Application
    Filed: February 4, 2010
    Publication date: December 23, 2010
    Applicant: HOYA CORPORATION
    Inventor: Yuichi KUROSAWA
  • Patent number: 7798731
    Abstract: A diaphragm driving device is provided in a camera body of a digital camera to which an interchangeable lens is detachably attached, the interchangeable lens including a diaphragm mechanism having a diaphragm control bar for changing an aperture size by a rotation of the diaphragm control bar about an optical axis. The camera body includes a diaphragm-driving slide plate which engages with the diaphragm control bar when the interchangeable lens is attached to the camera body; a diaphragm drive motor which rotates in both forward and reverse directions for moving the diaphragm-driving slide plate step wise in accordance with object brightness information of an object image formed through the interchangeable lens; and a converting mechanism for converting the rotation of the diaphragm drive motor in the both directions into a force for moving the diaphragm-driving slide plate.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: September 21, 2010
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Patent number: 7705518
    Abstract: An ultrasonic motor includes a stator that includes a comb body with a plurality of circumferentially-arranged comb-like projections and a piezoelectric body integrally mounted on the comb body, a rotor rotatable with respect to the stator, the rotor having a contact surface that establishes pressure contact with the stator, and a resin film formed with predetermined hardness on the contact surface of the rotor, the resin film containing a solid lubricant.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: April 27, 2010
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Patent number: 7697840
    Abstract: A display screen device includes a display panel on which a first image is displayed, and an electroluminescent display which displays a second image and is positioned to extend substantially entirely over one surface of the display panel so that the first image and the second image can be selectively displayed and so that the first image and the second image can be displayed in a superimposed manner.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: April 13, 2010
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Patent number: 7680409
    Abstract: A camera system includes a camera body having an in-body motor; an interchangeable lens having an in-lens motor, the interchangeable lens being detachable from the camera body; a focusing mechanism for moving a focusing lens group provided in the interchangeable lens in an optical axis direction thereof; a rotational force transmission device which transmits a rotational force of the in-body motor to the focusing mechanism to perform an AF operation in a state where the interchangeable lens is attached to the camera body; an auto-focusing mechanism for driving the focusing mechanism to perform an AF operation by the in-lens motor, independently from the in-body motor; and a one-way clutch which allows transmission of a rotational force of the in-body motor to the in-lens motor while preventing a rotational force of the in-lens motor from being transmitted to the in-body motor.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: March 16, 2010
    Assignee: HOYA Corporation
    Inventor: Yuichi Kurosawa
  • Patent number: 7663690
    Abstract: A digital camera configured to carry out a strobe photographing is provided. The digital camera includes an imaging optical system, which forms an optical image of an object with its background, an image capturing system configured to capture the optical image of the object and the background, a color temperature sensor configured to detect a color temperature of the object and the background illuminated with external light, a white balance adjusting system configured to adjust a white balance of the image captured by the image capturing system, and a color temperature converting filter inserted in an optical path of light which passes through the imaging optical system to form the optical image when the strobe photographing is carried out. The color temperature converting filter converts the color temperature of the external light to a predetermined value.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: February 16, 2010
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Patent number: 7663694
    Abstract: A digital camera includes an image sensor unit which is fixed to a camera body, the image sensor incorporating an image sensor package including an image sensor, and a reference plate which serves as a positional reference when fixed to the camera body, the image sensor package being mounted to the reference plate; and an adjusting device, incorporated in the image sensor unit, for adjusting at least an inclination of the image sensor with respect to a reference surface of the reference plate.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: February 16, 2010
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa
  • Publication number: 20100020184
    Abstract: An image shake correction apparatus of a camera in which an object image is formed on an image sensor that is driven to move in first and second directions, which are orthogonal to each other, in a plane orthogonal to an optical axis to compensate for camera shake. The image shake correction apparatus includes a first table provided in a camera body to be movable in the first direction, and a second table which supports the image sensor and is movable in the second direction on the first table. At least one of the first table and the second table is supported by one guide bar and supported by a linear actuator which moves the one of the first table and the second table along the one guide bar, the one guide bar extending in a corresponding one of the first direction and the second direction.
    Type: Application
    Filed: July 16, 2009
    Publication date: January 28, 2010
    Applicant: HOYA CORPORATION
    Inventor: Yuichi KUROSAWA
  • Patent number: 7646976
    Abstract: A digital camera includes an imaging device for capturing images of an object, a signal processor which performs signal processing on a signal captured by the imaging device to obtain an image signal, and a single measuring device for measuring color of at least a part of the object, and for measuring a color temperature of the object to adjust white balance of the image signal.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: January 12, 2010
    Assignee: Hoya Corporation
    Inventor: Yuichi Kurosawa