Patents Assigned to Nidec Copal Corporation
  • Patent number: 11979653
    Abstract: An imaging device includes an image sensor, a blade operable to switch between a closed state to at least partially block light incident on the image sensor and an open state to allow light to be incident on the image sensor, a blade driver that drives the blade, a blade controller that controls the blade driver, an authentication processor that performs authentication based on a result of imaging performed by the image sensor, and an operation detector that detects an operation. The blade controller controls the blade driver to place the blade in the open state in response to a predetermined operation detected by the operation detector and to place the blade in the closed state in response to a predetermined time passing in the open state of the blade and no success in the authentication performed by the authentication processor.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 7, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Kenzo Imai, Nobuaki Watanabe, Daisuke Kakemizu
  • Patent number: 11960194
    Abstract: A camera includes a viewfinder portion causing a frontward field of view to be visible through a viewfinder, and a drive lever rotatable about a shaft. An operation cylinder operable to extend and contract an extendable unit includes a guide surface extending in a circumferential direction and a recess adjacent to the guide surface. The drive lever includes an actuation portion that comes in contact with the guide surface of the operation cylinder. The camera further includes an urging member urging the actuation portion in the drive lever, a prism that changes a direction of a field of view visible through the viewfinder portion, and a prism guide lever rotatable about a shaft. The prism guide lever includes a prism holder holding the prism, and a follower gear meshing with a drive gear in the drive lever. The prism holder is placeable into the viewfinder portion.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: April 16, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Mami Muramatsu
  • Patent number: 11950899
    Abstract: A monitoring system can protect the privacy of a treatment recipient while monitoring the treatment recipient being treated. A transmitter transmits a beacon signal. A beacon detector detects an RSSI(2) of the beacon signal. A monitoring device includes an imaging element, an open-close body, a beacon detector, an obtainer, and an open-close body controller. The imaging element captures an image of a treatment recipient being treated by a treatment provider through an opening. The open-close body opens and closes the opening. The beacon detector detects an RSSI(1) of the beacon signal. The obtainer obtains the RSSI(2) detected by the beacon detector. The open-close body controller controls opening and closing of the open-close body based on the RSSI(1) detected by the beacon detector and the RSSI(2) obtained by the obtainer.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: April 9, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Hideki Osawa
  • Patent number: 11937012
    Abstract: To reduce increased consumption of the recording capacity of a recording medium to record generated image data, an imaging device includes an imaging element and an image processor that receive subject light through an opening in a housing and generate image data, a recording controller that records the image data generated by the imaging processor onto a memory card, a lens cover movable to a position at which the lens cover covers the opening to restrict the subject light from entering the imaging element, and a determiner that detects a position of the lens cover based on the image data generated by the imaging processor and determines whether the lens cover covers the opening. The recording controller stops recording the image data onto the memory card when the determiner determines that the lens cover covers the opening.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: March 19, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Ryuzo Nakano, Taizo Takiguchi
  • Patent number: 11921405
    Abstract: A camera can perform two different photographing operations with a lens at different positions without vignetting while preventing entry of light and dust. A camera includes a frame including a film compartment to contain a photographic film and a barrel extending from the film compartment in an optical axis direction, and a lens barrel movable in the barrel in X-direction. The lens barrel includes cylinders movable frontward relative to the barrel, and a cylinder movable frontward relative to the cylinder. The camera includes a rear bellows connecting the frame and the cylinder, and a front bellows connecting the cylinder and the cylinder. In a first photographing state in which the cylinders extend frontward relative to the barrel and the cylinder is accommodated inside the cylinder, the rear bellows is expanded and the front bellows is partially contracted. In a second photographing state, the cylinder extends frontward relative to the cylinder.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 5, 2024
    Assignees: NIDEC COPAL CORPORATION, FUJIFILM CORPORATION
    Inventors: Tomihiro Wakayama, Yuichi Ozawa, Yoshiki Murayama, Takehisa Kirihara, Hisashi Tasaka
  • Patent number: 11921403
    Abstract: An electronic device allows the user to notice that no image capturing is being performed and increases the user comfort as well as includes a small open-close device incorporated in a limited space. A camera module is covered by a blade. This allows the user to notice that no image capturing is being performed and increases the user comfort. A base is attached to a first surface of a module board, and a cover has a first end in the longitudinal direction attached to the base and a second end in the longitudinal direction supported by the first surface of the module board. The base may not extend to the second end of the cover in the longitudinal direction and can have a shorter length (miniaturized), further miniaturizing a blade open-close device.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: March 5, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Ryosuke Ushio, Koji Sawanobori, Nobuaki Watanabe
  • Patent number: 11899340
    Abstract: A camera blocks light outside a lens barrel entering an optical path in a lens barrel. A camera includes a frame and a lens barrel accommodating a lens. The lens barrel includes a stationary cylinder including a cylindrical wall having a through-cam groove extending with its circumferential position changing in X-direction, a drive cylinder rotatable relative to the stationary cylinder without moving in X-direction, a rotary cylinder rotatable relative to the stationary cylinder and movable in X-direction, a key cylinder movable in X-direction together with the rotary cylinder, a linearly movable cylinder rotatable relative to the rotary cylinder together with the key cylinder. The camera further includes a connecting frame attached to a rear end of the key cylinder in the lens barrel and a rear light shield including a bellows connecting the connecting frame and the frame in an expandable manner.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: February 13, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Koichi Hirabayashi
  • Patent number: 11892752
    Abstract: A camera has a more integrated appearance and higher dustproof and light-shielding performance. A camera includes a frame accommodated in a housing having a front surface with an opening, and a lens barrel accommodating at least one lens. The lens barrel includes a stationary cylinder including a cylindrical wall extending in X-direction from a base, and a drive cylinder that causes an extendable unit located radially inward front the cylindrical wall of the stationary cylinder and extendable in X-direction through the opening to extend and retract. The drive cylinder includes a cylindrical portion rotatable between the cylindrical wall of the stationary cylinder and an inner circumferential edge of the opening in a front cover. The lens barrel further includes a cover cylinder covering the inner circumferential edge of the opening in the front cover and the cylindrical portion of the drive cylinder and rotatable relative to the stationary cylinder together with the drive cylinder.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: February 6, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Koichi Hirabayashi
  • Patent number: 11886108
    Abstract: A blade driving device is smaller and has fewer components. A blade driving device includes a base including a support shaft extending frontward, a cover having an opening, a blade located in a blade chamber defined between the base and the cover, and an actuator that moves the blade between a closing position to cover the opening and an opening position to uncover the opening. The cover covers a front of the base. The actuator includes a lever connected to the blade. The lever includes a lever body rotatable about the support shaft in the base, a connector connecting the lever body and the blade, and a protrusion protruding from the lever body frontward beyond the blade and facing the cover.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: January 30, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Kenzo Imai
  • Patent number: 11860514
    Abstract: A camera can perform two different photographing operations with a lens at different positions without vignetting while preventing entry of light and dust. A camera includes a frame including a film compartment to contain a photographic film and a barrel extending from the film compartment in an optical axis direction, and a lens barrel movable in the barrel in X-direction. The lens barrel includes cylinders movable frontward relative to the barrel, and a cylinder movable frontward relative to the cylinder. The camera includes a rear bellows connecting the frame and the cylinder, and a front bellows connecting the cylinder and the cylinder. In a first photographing state in which the cylinders extend frontward relative to the barrel and the cylinder is accommodated inside the cylinder, the rear bellows is expanded and the front bellows is partially contracted. In a second photographing state, the cylinder extends frontward relative to the cylinder.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 2, 2024
    Assignees: NIDEC COPAL CORPORATION, FUJIFILM CORPORATION
    Inventors: Tomihiro Wakayama, Yuichi Ozawa, Yoshiki Murayama, Takehisa Kirihara, Hisashi Tasaka
  • Patent number: 11859656
    Abstract: A thrust converting mechanism has a shaft provided with a pair of helical mated portions, formed in mutually opposing directions; a pair of linear motion members having mating portions for engaging, respectively, the pair of mated portions; a case for supporting the pair of linear motion members so as to enable movement along the shaft, and for bearing the shaft rotatably; a rocking member that is borne on one of the linear motion members of the pair, and for engaging with the other linear motion member of the pair, and for rocking through relative motion of the shaft in respect to the case; and a moving member, supported on the case, that engages with the rocking member to move, through rocking of the rocking member, in a direction that crosses the shaft.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: January 2, 2024
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Daisuke Yaginuma
  • Patent number: 11852954
    Abstract: A blade open-close device retains a blade at a predetermined position under an external load. A blade open-close device includes a base, a cover plate covering part of the base, and a blade located between the base and the cover plate. The blade is movable between a closing position to cover an opening in the cover plate and an opening position to uncover the opening. The blade open-close device further includes an actuator that moves the blade between the opening position and the closing position, a stopper movable between a lock position at which a protrusion on the stopper is on a path of the blade and an unlock position at which the stopper is entirely retracted from the path when the blade is at the opening position and when the blade is at the closing position, and a voice coil motor that moves the stopper from the lock position toward the unlock position.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 26, 2023
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Koji Sawanobori
  • Patent number: 11815786
    Abstract: A blade open-close device retains a blade at a predetermined position under an external load. A blade open-close device includes a base, a cover plate covering part of the base, a blade between the base and the cover plate, a driving actuator that moves the blade in X-direction, and a stopper actuator located adjacent to the driving actuator in X-direction to restrict an operation of the driving actuator. The driving actuator includes a rotor magnet rotatably located adjacent to a yoke and a driving lever including a connecting part connected to the blade. The stopper actuator includes a rotor magnet rotatably located adjacent to a yoke and a stopper lever including a restrictor movable onto a path of the driving lever in the driving actuator.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: November 14, 2023
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Koji Sawanobori, Nobuaki Watanabe
  • Patent number: 11775032
    Abstract: A small blade driving device is incorporated in a limited space. A cover includes a first cover fixed to a base and a second cover protruding from the first cover in a movement direction of a blade. A support leg protrudes from the second cover toward a first surface of a module substrate and is supported by the first surface. The base may not have the same length as the cover and have a shorter length (miniaturized), further miniaturizing a blade driving device.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: October 3, 2023
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Ryosuke Ushio, Koji Sawanobori, Nobuaki Watanabe
  • Patent number: 11758254
    Abstract: A blade open-close device includes a blade for which an open or closed state is easily viewable from outside. A blade open-close device includes a base having a base opening, and a cover covering the base and having a cover opening adjacent to the base opening in the base in Z-direction. The blade open-close device further includes a blade movable in X-direction in a blade chamber between the base and the cover and including a light emitter that emits light, and an actuator that moves the blade to a closing position to expose at least part of the light emitter in the blade through the cover opening and retracts the blade to an opening position to allow the cover opening and the base opening to communicate with each other.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: September 12, 2023
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Ryosuke Ushio, Nobuaki Watanabe
  • Patent number: 11706515
    Abstract: An imaging device with a compact design allows illumination with a light source and imaging with an image sensor. An imaging device includes a front case having a front surface including a window and a lens-holder receptacle aligned with each other in a width direction (X-direction), a lens holder including a lens and attachable inside the lens-holder receptacle in the front case, a first circuit board on which an image sensor to receive light through the lens in the lens holder is mounted, and a second circuit board on which an LED to emit light through the window in the front case is mounted. The first and second circuit boards extend entirely in the width direction. The second circuit board is located frontward from the first circuit board.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: July 18, 2023
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Yuta Nakamura
  • Patent number: 11611687
    Abstract: A thin blade open-close device is incorporated in a limited space. A blade open-close device includes a base located on a module board including a lens unit, a partition located opposite to the module board from the base, and a cover plate located opposite to the base from the partition. The partition and the cover plate each have an opening aligned with an optical axis of the lens unit. The blade open-close device includes a blade movable in X-direction in a blade chamber defined between the cover plate and the partition, an actuator that moves the blade between a closing position to cover the openings and an opening position to uncover the openings, and a terminal plate extending in Z-direction. The terminal plate electrically connected to the actuator includes connectors at its end adjacent to the module board to be electrically connected to contacts on the module board.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: March 21, 2023
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Ryosuke Ushio, Kenzo Imai, Koji Sawanobori, Nobuaki Watanabe
  • Patent number: 11561456
    Abstract: To enable continuous operational control of the blade member with high resolution and good accuracy, even when achieving miniaturization and thickness reduction in a blade driving device, through enabling smooth movement of a movable member in a blade driving device. A blade driving device 1 comprises: a base member 2 that has an opening 2A; one or a plurality of blade members 3 that operate so as to advance into the opening 2A or withdraw from the opening 2A; a driving member 4 that moves within a plane that is perpendicular to the optical axis that passes through the opening 2A, to drive the blade member 3; and supporting members 7 that are provided between the base member 2 and the driving member 4, so as to provide sliding support or elastic support of the driving member 4 in a state that is separated from the base member 2.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: January 24, 2023
    Assignee: Nidec Copal Corporation
    Inventors: Kazuo Shikama, Longji Bai, Nobuaki Watanabe
  • Patent number: 11480850
    Abstract: An optical unit has a lens frame that has a slit in a cylinder, and a blade driving device, comprising an insertion portion for insertion into the slit, wherein an opening, provided in the insertion portion, is disposed between lenses in a lens frame, wherein: the blade driving device comprises a frame that has a recessed lens frame storing portion with the insertion portion protruding; a cylinder of the lens frame comprises a pair of supporting faces that are perpendicular to the optical axis of the lens; and the lens frame storing portion of the frame has contact surfaces that contact each of a pair of supporting faces.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 25, 2022
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Shozo Iwato, Koji Sawanobori, Kazuo Shikama, Kenzo Imai, Nobuaki Watanabe
  • Patent number: 11444500
    Abstract: A motor with a permanent magnet is provided. A motor has a rotor and an annular drive magnet surrounding the rotor. The drive magnet includes a plurality of magnetized areas having an entire circumference divided into a multiple of at equiangular intervals and includes a plurality of divided areas having an entire circumference divided into the same number as the number of magnetized areas at equiangular intervals. The two adjacent magnetized areas have different polarities. In an inner circumferential surface of each divided area in the drive magnet, a distance D from a rotation center line of the rotor becomes longer from a center in a circumferential direction toward both ends of the area. A magnetization polarization line of the two adjacent magnetized areas deviates from a boundary between the two adjacent divided areas in the circumferential direction.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: September 13, 2022
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Hidenobu Itou