Patents Assigned to Seiko Precision Inc.
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Patent number: 9241107Abstract: An image pickup device includes: an image pickup element; a control portion sequentially resetting charge stored in the image pickup element for every pixel line in a predetermined direction such that an electronic leading blade moves in a simulated manner; and a focal plane shutter.Type: GrantFiled: March 6, 2014Date of Patent: January 19, 2016Assignee: SEIKO PRECISION INC.Inventor: Yoichi Nakano
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Publication number: 20160011491Abstract: A focal-plane shutter includes: a mechanical portion including: a board including an opening; and a leading blade and a trailing blade capable of opening and closing the opening; and a leading blade actuator and a trailing blade actuator respectively driving the leading blade and the trailing blade, and respectively including a leading blade coil and a trailing blade coil, wherein a current value flowing through at least one of the leading blade coil and the trailing blade coil is adjusted such that one of variations in a leading blade run-up period and a trailing blade run-up period depending on a temperature change corresponds to the other one.Type: ApplicationFiled: September 23, 2015Publication date: January 14, 2016Applicant: SEIKO PRECISION INC.Inventors: Seiichi OISHI, Minori MURATA, Shoichi TOKURA, Hiroshi TAKAHASHI
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Publication number: 20150341574Abstract: An imaging device includes: an image pickup element; a focal plane shutter including: a board including an opening exposing the image pickup element; a leading shutter and a trailing shutter movable between a closed position to close the opening and an opened position to open the opening; and a leading shutter actuator and a trailing shutter actuator respectively driving the leading shutter and the trailing shutter, a drive control portion that drives the leading shutter actuator and the trailing shutter actuator; and a control portion that controls the image pickup element.Type: ApplicationFiled: August 4, 2015Publication date: November 26, 2015Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Chiaki NEMOTO, Yoichi NAKANO
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Publication number: 20150268533Abstract: A focal plane shutter includes: a first board including a first opening; a first shutter including plural first blades, and facing the first board and closing the first opening such that an overlapped state where the plural first blades overlap each other is shifted to an expanded state where the plural first blades expand; and a drive member connected to a root portion of the first shutter and causing the first shutter to move.Type: ApplicationFiled: February 19, 2015Publication date: September 24, 2015Applicant: SEIKO PRECISION INC.Inventors: Seiichi OISHII, Shoichi TOKURA
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Patent number: 9138835Abstract: The X-ray processing device comprises a work table on which a processing object is placed, X-ray processors irradiating the processing object placed in a given processing zone on the work table with an X-ray for processing, a pressing member, and X-ray shielding sheets. The pressing member presses and collapses any remaining raised edges at the sides of the processing object. The X-ray shielding sheets are provided on the side of the pressing member that is closest to the processing zone and shield the X-ray from the X-ray processors.Type: GrantFiled: December 27, 2012Date of Patent: September 22, 2015Assignee: SEIKO PRECISION INC.Inventors: Ikuo Shiozawa, Tsutomu Saito, Takeshi Tokairin, Koji Yoneda
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Publication number: 20150253646Abstract: A focal plane shutter includes: a board including an opening; blades opening and closing the opening; an electromagnet supported by the board; a drive lever adsorbed to and held by the electromagnet, and swingably supported by the board; a drive arm connected to the drive lever, swingably supported by the board, and driving the blades; a first biasing member always biasing the drive lever away from the electromagnet and moving the blades; a first adjusting member that stepwisely adjusts a biasing force of the first biasing member; a second biasing member always biasing the drive arm in a direction opposite to a biasing direction of the first biasing member to such an extent that the blades are moved in accordance with the biasing force of the first biasing member; and a second adjusting member that steplessly adjusts a biasing force of the second biasing member.Type: ApplicationFiled: February 13, 2015Publication date: September 10, 2015Applicant: SEIKO PRECISION INC.Inventors: Seiichi OISHII, Shoichi TOKURA
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Publication number: 20150234256Abstract: A focal-plane shutter includes: first, second, and third boards each including an opening and arranged in an optical axis direction passing through the openings; a first blade arranged between the first and second boards and capable of opening and closing the openings; a second blade arranged between the second and third boards and capable of opening and closing the openings; first and second arms arranged between the second and third boards, connected to the second blade, made of synthetic resins, and capable of rotating about respective different fulcrums; and a drive member connected to the first arm and driving the first arm.Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Mitsuru SUZUKI, Minori MURATA, Makoto TORIUMI
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Publication number: 20150234257Abstract: A blade-driving device includes: a board including an opening; a blade opening and closing the opening; an arm driving the blade and made of a synthetic resin; a drive member driving the arm; and a reinforcement member formed with a laser welding mark indicating a mark formed by laser welding the reinforcement member and the arm together, and made of a synthetic resin.Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Mitsuru SUZUKI, Makoto TORIUMI
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Publication number: 20150234255Abstract: A focal-plane shutter includes: a board including an opening; a blade opening and closing the opening; a rotor of an actuator for driving the blade; an output member rotated by the rotor and including a first gear portion; a drive member including a second gear portion meshing with the first gear portion, rotating about a predetermined axis, and driving the blade; and a positioning portion abutting with the drive member and defining an end of a rotational range of the drive member, wherein the first and second gear portions and the positioning portion overlap one another in a plane direction perpendicular to the axis.Type: ApplicationFiled: April 30, 2015Publication date: August 20, 2015Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Mitsuru SUZUKI, Minori MURATA, Makoto TORIUMI
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Publication number: 20150227020Abstract: An imaging device includes: a focal plane shutter including: a board including an opening; a leading shutter and a trailing shutter opening and closing the opening; a leading shutter actuator and a trailing shutter actuator respectively driving the leading shutter and the trailing shutter; and a restrict portion that restricts reciprocating movement ranges of the leading shutter and the trailing shutter, an image pickup element which light enters through the opening; and a drive control portion.Type: ApplicationFiled: April 24, 2015Publication date: August 13, 2015Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Minori MURATA, Seiichi OISHI, Shoichi TOKURA
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Patent number: 9069231Abstract: A focal plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive source driving the shutter; a drive lever driven by the drive source; a drive arm connected to the drive lever and driving the shutter; a restriction portion defining a stop position of the drive lever; and a buffering member elastically deformable, wherein, when the drive lever drives, abuts the restriction portion, and stops, at least one of the drive arm and the shutter temporarily abuts the buffering member, is spaced from the buffering member, and stops.Type: GrantFiled: May 30, 2014Date of Patent: June 30, 2015Assignee: SEIKO PRECISION INC.Inventors: Seiichi Oishi, Minori Murata, Hiroshi Takahashi, Shoichi Tokura
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Patent number: 9039308Abstract: A focal plane shutter includes: first, second, and third boards respectively including openings through which light enters an image pickup element from an object side, and arranged in this order from the object side toward the image pickup element side; a blade arranged between the first and second boards and capable of opening and closing the openings; and a holding member arranged between the second and third boards, not coupled to the blade, and holding the second board from the image pickup element side.Type: GrantFiled: August 15, 2012Date of Patent: May 26, 2015Assignee: SEIKO PRECISION INC.Inventors: Shoichi Tokura, Hiroshi Takahashi, Seiichi Oishi, Kazuya Shioda
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Patent number: 9011029Abstract: The ribbon winding unit is equipped with a first moving gear, a second moving gear, a first intermediate gear, a tumbler gear, and a winding member. The first intermediate gear engages with the first moving gear when the first moving gear and the second moving gear move in a given direction, and disengages from the first moving gear when the first moving gear and the second moving gear move in an opposite direction. The tumbler gear engages with the first intermediate gear, engages with the second moving gear when the first moving gear and the second moving gear move in the opposite direction, and disengages from the second moving gear when the first moving gear and the second moving gear move in the given direction.Type: GrantFiled: December 28, 2012Date of Patent: April 21, 2015Assignee: SEIKO Precision Inc.Inventor: Koji Ehara
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Publication number: 20150050014Abstract: A blade drive device includes: a board including an opening; first and second blades opening and closing the opening; and first and second actuators respectively driving the first and second blades, wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and respectively drive the first and second blades through first and second drive members, the first drive member is arranged to overlap the first stator and the first coil in an optical axis direction, and the second drive member is arranged to overlap the second stator and the second coil in the optical axis direction.Type: ApplicationFiled: October 30, 2014Publication date: February 19, 2015Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Shoichi TOKURA, Chiaki NEMOTO, Yoichi NAKANO
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Patent number: 8941699Abstract: A time recorder includes a first sensor that detects the side edge of a time card having a cut-out formed at at least one corner of the bottom, a second sensor that detects the bottom of the time card, and a card feeding unit that feeds the time card. When the time card is fed by this card feeding unit, a pulse counter of the card feeding unit counts the number of pulses of predetermined pulse signals after the first sensor detects the time card and until the second sensor detects the time card. Next, the front and back faces of the time card are determined based on the number of pulses that is a counting result. Hence, the front and back faces can be determined by the first sensor and the second sensor only.Type: GrantFiled: October 12, 2011Date of Patent: January 27, 2015Assignee: Seiko Precision Inc.Inventors: Katsuhisa Gokita, Ryuji Okuyama
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Patent number: 8934162Abstract: A diaphragm device includes: a board including an opening; a step motor including a teeth portion, and rotatable and stoppable at an interval of a predetermined step angle; a transmitting member including a driven teeth portion meshing the teeth portion, and capable of rotating and stopping in response to a drive force of the teeth portion; a drive ring capable of rotating and stopping in response to a drive force of the transmitting member; and a blade capable of stopping at a receding position to recede from the opening or at an aperture position to cover at least a part of the opening, in response to a drive force of the drive ring.Type: GrantFiled: March 14, 2012Date of Patent: January 13, 2015Assignee: Seiko Precision Inc.Inventor: Hisashi Kawamoto
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Publication number: 20140376904Abstract: A focal plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive source driving the shutter; a drive lever driven by the drive source; a drive arm connected to the drive lever and driving the shutter; a restriction portion defining a stop position of the drive lever; and a buffering member elastically deformable, wherein, when the drive lever drives, abuts the restriction portion, and stops, at least one of the drive arm and the shutter temporarily abuts the buffering member, is spaced from the buffering member, and stops.Type: ApplicationFiled: May 30, 2014Publication date: December 25, 2014Applicant: SEIKO PRECISION INC.Inventors: Seiichi OISHI, Minori MURATA, Hiroshi TAKAHASHI, Shoichi TOKURA
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Publication number: 20140369675Abstract: A blade drive device includes: a board including an opening; first and second blades opening and closing the opening; and first and second actuators arranged adjacent to each other and respectively driving the first and second blades, wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and the first and second rotors is arranged to sandwich at least one of the first and second coils.Type: ApplicationFiled: August 27, 2014Publication date: December 18, 2014Applicant: SEIKO PRECISION INC.Inventors: Hiroshi TAKAHASHI, Shoichi Tokura, Chiaki Nemoto, Yoichi Nakano
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Publication number: 20140347534Abstract: An image pickup device includes: an image pickup element; a control portion artificially driving an electronic leading blade by resetting stored charges of the image pickup element in a predetermined direction at every pixel line; and a focal plane shutter includes a board including an opening exposing the image pickup element, a mechanical trailing blade capable of opening and closing the opening, a trailing blade drive lever driving the trailing blade, an actuator actuating the trailing blade drive lever, a shading member capable of opening and closing at least a part of the opening, a shading member drive lever driving the shading member, a connection member provided on the shading member drive lever, and a biasing member biasing the shading member drive lever such that the shading member recedes from the opening.Type: ApplicationFiled: May 20, 2014Publication date: November 27, 2014Applicant: SEIKO PRECISION INC.Inventor: Yoichi NAKANO
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Patent number: D744872Type: GrantFiled: September 12, 2013Date of Patent: December 8, 2015Assignee: SEIKO Precision Inc.Inventor: Koji Ehara