Patents Assigned to Seiko Precision Inc.
  • Speed reducing mechanism, drive device, and optical instrument
    Patent number: 8100593
    Abstract: A speed reducing mechanism includes: a driven member; and a decelerating member transmitting a drive force from an actuator to the driven member. The driven member includes an engagement pin. The decelerating member includes: a teeth portion engaging a rotor pinion portion serving as the drive force from the actuator; and a cam slot engaging the engagement pin. The decelerating member is rotatably supported and is formed into a sheet shape thinner than a face width of the rotor pinion portion.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: January 24, 2012
    Assignee: Seiko Precision Inc.
    Inventor: Hisashi Kawamoto
  • FOCAL PLANE SHUTTER AND OPTICAL DEVICE
    Publication number: 20120008932
    Abstract: A focal plane shutter includes: an electromagnet; a board including an opening; a blade movable between a position where the blade recedes from the opening and a position where the blade covers at least part of the opening; and a drive lever driving the blade, and including: a spindle portion provided at its one end with a flange portion; an iron piece provided at the other end of the spindle portion and capable of being adsorbed to the electromagnet; a support portion including a through hole through which the spindle portion penetrates with a play; and a guide portion provided along the iron piece.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 12, 2012
    Applicant: SEIKO PRECISION INC.,
    Inventors: Hiroshi TAKAHASHI, Seiichi OISHI
  • FOCAL PLANE SHUTTER AND OPTICAL DEVICE
    Publication number: 20120008933
    Abstract: A focal plane shutter includes: a board including an opening; a blade movable between a position where the blade recedes from the opening and a position where the blade covers at least part of the opening; a drive arm connected to the blade, the drive arm including an engagement hole; a drive lever including a drive pin engaging the engagement hole; and a restriction portion provided in the drive arm, the restriction portion abutting the drive pin and being thicker than the drive arm.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 12, 2012
    Applicant: SEIKO PRECISION INC.
    Inventors: Hiroshi TAKAHASHI, Seiichi Oishi
  • Gear mechanism and blade drive device
    Patent number: 8070370
    Abstract: A gear mechanism includes a pair of gears including first and second gears overlapped with each other in an axial direction. The first and second gears include first and second tooth portions, respectively. The first tooth portion slightly projects outwardly from the second tooth portion. The first gear is formed with a deformation facilitating portion for facilitating deformation of the first gear in a radial direction.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 6, 2011
    Assignee: Seiko Precision Inc.
    Inventor: Hisashi Kawamoto
  • Blade drive device and optical apparatus
    Patent number: 8057113
    Abstract: A blade drive device includes a shutter unit. The shutter unit includes: a blade swingably supported; and a plurality of boards defining a blade chamber, each having an opening opened and closed by the blade, and an actuator serving as a drive force of the blade and including a rotor having a rotary shaft. The rotary shaft penetrates to the blade chamber. An elastic member is housed in the blade chamber, and urges the rotary shaft in a thrust direction.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: November 15, 2011
    Assignee: Seiko Precision Inc.
    Inventor: Hisashi Kawamoto
  • Image information management system and method
    Patent number: 8054340
    Abstract: An imaging device detects an occurrence of a trigger event, stores images before and after the trigger event occurrence for a specified time and transmits them to an image management server. The image management server stores the image file and key information associated with the image file, the key information including information related to timing of the trigger event occurrence related to the image in an image DB. When the image management server receives a search condition, the image management server obtains an image file stored in association with the key information satisfying the designated search condition from the image DB.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: November 8, 2011
    Assignee: Seiko Precision Inc.
    Inventors: Yasutoshi Miki, Hisanaga Tamura
  • Blade drive device
    Patent number: 8047733
    Abstract: A blade drive device includes: a board having a shutter opening; a blade for adjusting an amount of light entering the shutter opening; and a transmitting member for transmitting a drive force to the blade. The transmitting member includes a drive pin swinging about a given support point. The blade has a first cam slot engaged with the drive pin and swinging about a given support point in conjunction with a swinging of the drive pin. The first cam slot includes a first permitting area and a first restricting area. The blade is permitted to swing when the drive pin is located in the first permitting area. The blade is restricted from swinging when the drive pin is located in the first restricting area.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: November 1, 2011
    Assignee: Seiko Precision Inc.
    Inventors: Phichet Numnual, Takashi Nakano, Prapas Charoensilputthakun, Noppadol Ngernping
  • Case and time recorder
    Patent number: 8022973
    Abstract: An inward deformation of one side wall of a main body is corrected, since a shaft serving as a rotatable shaft of a door is in contact with ribs of a side wall. Additionally, an inward deformation of another side wall of the main body is corrected, since ribs of a side wall of door are in contact with side wall.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: September 20, 2011
    Assignee: Seiko Precision Inc.
    Inventor: Akio Takeda
  • BLADE DRIVE DEVICE AND OPTICAL DEVICE
    Publication number: 20110170852
    Abstract: A blade drive device includes: a board including an optical path opening; a blade including a plurality of openings; a first drive source that swings the blade to move toward and away from the optical path opening; and a second drive source that changes a position of a swinging fulcrum of the blade relative to the board. The first drive source includes a first rotor and a first transmitting portion transmitting a rotation of the first rotor to the blade. The second drive source includes a second rotor and a second transmitting portion transmitting a rotation of the second rotor to the blade. The blade includes a cam slot engaging the first transmitting portion and a fitting hole into which the second transmitting portion slidably fits.
    Type: Application
    Filed: March 22, 2011
    Publication date: July 14, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Phichet Numnual, Prapas Charoensilputthakun
  • BLADE DRIVE DEVICE AND OPTICAL DEVICE
    Publication number: 20110164298
    Abstract: A blade drive device includes: a board including an optical path opening; first and second blades cooperatively defining an amount of light passing through the optical path opening to a given amount of light. The first blade includes a first opening. The second blade includes: a first cutout portion defining the amount of light in corporation with the first opening; and a second cutout portion defining the amount of light in corporation with the first opening. The second cutout portion overlaps the first blade when the first cutout portion and the first opening cooperatively define the amount of light.
    Type: Application
    Filed: March 11, 2011
    Publication date: July 7, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Worachai Jaitham, Prapas Charoensilputthakun
  • DRIVE MECHANISM, BLADE DRIVE MECHANISM AND OPTICAL DEVICE
    Publication number: 20110150458
    Abstract: A drive mechanism includes: an actuator including a rotor magnetized; a magnetic body, a magnetically attractive force being generated between the magnetic body and the rotor; and a sandwiched member sandwiched between the rotor and the magnetic body. At least one of the magnetic body and the sandwiched member is coupled to the rotor, and the magnetic body and the sandwiched member slidably contact each other.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 23, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Hisashi KAWAMOTO, Yutaka ASAI
  • Light quantity control device
    Patent number: 7965432
    Abstract: A light quantity control device includes: a bottom board having an opening; a first blade and second blade linearly moving in opposing directions and changing in an opening area of the opening; a supporting blade overlapping the first blade and closing the opening in cooperation with the first blade and second blade; and a driving lever connected to the first blade, the second blade, and supporting blade, and driving the first blade, second blade, and the supporting blade by rotation of the driving lever. The first blade and supporting blade are engaged with an identical pin provided in the driving lever. The first blade and supporting blade are misaligned in such a way to reduce an overlapping degree of the first blade and supporting blade. The first blade and supporting blade bring the opening to the fully closed state in cooperation with the second blade.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: June 21, 2011
    Assignee: Seiko Precision Inc.
    Inventors: Phichet Numnual, Takashi Nakano, Makoto Mikami
  • Blade drive device and optical equipment
    Patent number: 7959365
    Abstract: A blade drive device according to a first embodiment includes: a board including an opening and a slide slot; a blade for adjusting an opening amount of the opening; and a transmitting member for transmitting a drive force from an electromagnetic actuator to the blade through the slide slot. The transmitting member includes: an arm member revolving; and an engagement member sliding in contact with an inner surface of the slide slot in conjunction with a revolving of the arm member, and being brought into pressure contact with the inner surface of the slide slot by an external impact.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: June 14, 2011
    Assignee: Seiko Precision Inc.
    Inventor: Mitsuru Suzuki
  • Sector blade driving apparatus
    Patent number: 7955009
    Abstract: A sector blade driving apparatus includes: a board having an opening; a blade supported for linear movement, adjusting an opening amount of the opening, and having first and second engagement holes; a drive member rotating to drive the blade; and an arm transmitting an drive force of the drive member to the blade, and provided in the drive member. The arm is provided with first and second drive pins respectively engaging the first and second engagement holes.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: June 7, 2011
    Assignee: Seiko Precision Inc.
    Inventors: Phichet Numnual, Takashi Nakano
  • FOCAL PLANE SHUTTER AND OPTICAL DEVICE
    Publication number: 20110128603
    Abstract: A focal plane shutter includes: a board including an opening; a blade closing and opening the opening; a driving lever holding a movable iron piece, swingably supported, and driving the blade; a self-holding solenoid being able to adsorb the movable iron piece in a non-energized state, and an adsorptive force in an energized state being smaller than an adsorptive force in the non-energized state; and a biasing member biasing the driving lever to move away from the self-holding solenoid. The driving lever includes an engagement portion engaging the movable iron piece and made of a non-magnetic material.
    Type: Application
    Filed: November 9, 2010
    Publication date: June 2, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Yoichi NAKANO, Makoto Mikami
  • TIME CLOCK
    Publication number: 20110131637
    Abstract: A time clock 10, capable of outputting a datum to an USB memory 100 connected thereto, includes a controller authenticating whether or not the USB memory 100 is valid an external apparatus as an output destination to which the datum is output, and determining whether or not the datum is output on the basis of the authentication result. Further, the controller 25 authenticates an external apparatus on the basis of an authentication datum stored in the USB memory 100. The controller 25 performs the authentication on the basis of an identification datum of the time clock and an identification datum included in the authentication datum stored in the external apparatus.
    Type: Application
    Filed: February 1, 2011
    Publication date: June 2, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Kenji OZAWA, Koji EHARA
  • BLADE SPEED ADJUSTABLE MECHANISM AND FOCAL PLANE SHUTTER HAVING THE SAME
    Publication number: 20110116149
    Abstract: A blade speed adjustable mechanism includes: a board having an opening; a shutter blade opening or closing the opening; a drive lever supported by the board and bringing the shutter blade into an overlapped operation or an expanded operation; a biasing member engaging the drive lever and biasing the shutter blade in an overlapped direction or in an expanded direction; a ratchet member engaging the biasing member and having ratchet teeth; an engagement member holding the ratchet member at a desired stop position and adjusting an biasing force of the biasing member by changing the stop position. The engagement member has a plurality of pawl portions different from each other in length. The pawl portion engages the ratchet tooth to hold the ratchet member at the stop position. A difference in length between the pawl portions is shorter than a distance corresponding to a pitch of the ratchet teeth.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 19, 2011
    Applicant: SEIKO PRECISION INC.
    Inventors: Yoichi NAKANO, Hiroshi Takahashi
  • Focusing device and imaging device
    Patent number: 7933081
    Abstract: A focusing device of simple construction that is miniaturizable, and an imaging device utilizing the same, are provided. A focusing device (10) comprises an actuator (11), a lens holder (12) that holds lenses (13a) and (13b), and a holder support base (14) upon which the lens holder (12) is installed. The actuator (11) comprises a polymer layer (51), a positive electrode (52) that is formed upon the holder support base (14), and a negative electrode (53) that is formed upon the lens holder (12). When the applied voltage between the positive electrode (52) and the negative electrode (53) rises, the polymer layer (51) deforms radially outward along the positive electrode (52). Along with this deformation of the polymer layer (51), the actuator (11) moves the lens holder (12) along the optical axis.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: April 26, 2011
    Assignee: Seiko Precision Inc.
    Inventors: Akira Yasuda, Takeshi Kinoshita, Toshihiro Hirai
  • Vane driving device using a blade as a gear rotation stopping means
    Patent number: 7918617
    Abstract: A vane driving device includes: a board having an opening; a blade changing an area of the opening, having a cam slot, and being elastically deformable; and a drive member transmitting a drive force from a drive source to the blade, and having a drive pin engaging the cam slot. The drive member is stopped by contacting the drive pin with at least one of end portions of the cam slot, when the blade is located in a fully opened state or in a small aperture state.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: April 5, 2011
    Assignee: Seiko Precision Inc.
    Inventors: Hisashi Kawamoto, Osamu Takano
  • Time recorder
    Patent number: D635035
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: March 29, 2011
    Assignee: Seiko Precision Inc.
    Inventor: Satoru Matsumoto