Patents by Inventor Toshihiko Seike
Toshihiko Seike 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).
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Publication number: 20220324665Abstract: In a lock member of a pull-out lock device, while two adjacent sheet containers are both located at an accommodated position in an image-forming apparatus main body, a contact member is in contact with one of the sheet containers and thus the lock member rotates around a rotation axis, and a lock moves to an unlock position to allow the other sheet container to move in a pull-out direction, and while the other sheet container is located at the accommodated position and the one of the sheet containers is pulled out from the accommodated position in the pull-out direction and thus the contact between the one of the sheet containers and the contact member is removed, the lock member rotates around the rotation axis and the lock moves to a lock position to prohibit the other sheet container from moving in the pull-out direction.Type: ApplicationFiled: April 8, 2022Publication date: October 13, 2022Inventors: HIROKI SHINTANI, TOSHIHIKO SEIKE, SHOHTAROH OKAMOTO, TAKAHISA NARIKIYO
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Patent number: 10384894Abstract: A sheet feeding device includes a rotation shaft that rotates in synchronism with rotation of the feed member, a spring clutch that is deformable to be in a tightened state and to be in a loosened state, and a pressure-receiving member that becomes displaced from a first position to a second position by receiving a pressing force that is generated as the spring clutch swings. The spring clutch starts to be loosened from the tightened state as a first end portion of the spring clutch becomes engaged with an engagement portion when the pressure-receiving member is displaced to the second position.Type: GrantFiled: January 9, 2018Date of Patent: August 20, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Takahisa Narikiyo, Toshihiko Seike
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Publication number: 20180201458Abstract: A sheet feeding device includes a rotation shaft that rotates in synchronism with rotation of the feed member, a spring clutch that is deformable to be in a tightened state and to be in a loosened state, and a pressure-receiving member that becomes displaced from a first position to a second position by receiving a pressing force that is generated as the spring clutch swings. The spring clutch starts to be loosened from the tightened state as a first end portion of the spring clutch becomes engaged with an engagement portion when the pressure-receiving member is displaced to the second position.Type: ApplicationFiled: January 9, 2018Publication date: July 19, 2018Inventors: TAKAHISA NARIKIYO, TOSHIHIKO SEIKE
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Patent number: 10003704Abstract: The elastic force of a spring 41 in a direction of an arrow X is applied to an end 51A of a coil spring 5A in a direction of an arrow Y through a holding plate 42. The end 52A of the coil spring 5A is engaged with a holding hole 12 and regulated from moving in the direction of the arrow Y. The elastic force of the spring 41 in the direction of the arrow X is constantly applied to the coil spring 5A in a direction in which the peripheral surface of the support post 3 is tightened.Type: GrantFiled: August 9, 2016Date of Patent: June 19, 2018Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Takahisa Narikiyo, Kouji Wakamoto, Junya Masuda
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Patent number: 9612562Abstract: An image recording apparatus includes a first pullout unit, a second pullout unit, and a first lock mechanism. The first unit is movable along a first axis between a first retracted position where the first unit is fully retracted in the apparatus, and a first exposed position where at least one side surface thereof is fully exposed to the front of the apparatus. The second unit is movable along a second axis, which is perpendicular to the first axis, between a second retracted position where the second unit is fully retracted in the first unit, and a second exposed position where the second unit is exposed to a side of the side surface of the first unit. The first lock mechanism prevents movement of the second unit from the second retracted position to the second exposed position when the first unit is not in the first exposed position.Type: GrantFiled: February 27, 2015Date of Patent: April 4, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Toshihiko Seike, Toshiki Takiguchi, Junya Masuda, Hiroyuki Murai
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Publication number: 20160352940Abstract: The elastic force of a spring 41 in a direction of an arrow X is applied to an end 51A of a coil spring 5A in a direction of an arrow Y through a holding plate 42. The end 52A of the coil spring 5A is engaged with a holding hole 12 and regulated from moving in the direction of the arrow Y. The elastic force of the spring 41 in the direction of the arrow X is constantly applied to the coil spring 5A in a direction in which the peripheral surface of the support post 3 is tightened.Type: ApplicationFiled: August 9, 2016Publication date: December 1, 2016Inventors: Toshihiko SEIKE, Takahisa NARIKIYO, Kouji WAKAMOTO, Junya MASUDA
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Patent number: 9438756Abstract: The elastic force of a spring 41 in a direction of an arrow X is applied to an end 51A of a coil spring 5A in a direction of an arrow Y through a holding plate 42. The end 52A of the coil spring 5A is engaged with a holding hole 12 and regulated from moving in the direction of the arrow Y. The elastic force of the spring 41 in the direction of the arrow X is constantly applied to the coil spring 5A in a direction in which the peripheral surface of the support post 3 is tightened.Type: GrantFiled: September 9, 2014Date of Patent: September 6, 2016Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Takahisa Narikiyo, Kouji Wakamoto, Junya Masuda
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Publication number: 20150168905Abstract: An image recording apparatus includes a first pullout unit, a second pullout unit, and a first lock mechanism. The first unit is movable along a first axis between a first retracted position where the first unit is fully retracted in the apparatus, and a first exposed position where at least one side surface thereof is fully exposed to the front of the apparatus. The second unit is movable along a second axis, which is perpendicular to the first axis, between a second retracted position where the second unit is fully retracted in the first unit, and a second exposed position where the second unit is exposed to a side of the side surface of the first unit. The first lock mechanism prevents movement of the second unit from the second retracted position to the second exposed position when the first unit is not in the first exposed position.Type: ApplicationFiled: February 27, 2015Publication date: June 18, 2015Inventors: Toshihiko SEIKE, Toshiki TAKIGUCHI, Junya MASUDA, Hiroyuki MURAI
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Patent number: 8995879Abstract: An image recording apparatus includes a first pullout unit, a second pullout unit, and a first lock mechanism. The first unit is movable along a first axis between a first retracted position where the first unit is fully retracted in the apparatus, and a first exposed position where at least one side surface thereof is fully exposed to the front of the apparatus. The second unit is movable along a second axis, which is perpendicular to the first axis, between a second retracted position where the second unit is fully retracted in the first unit, and a second exposed position where the second unit is exposed to a side of the side surface of the first unit. The first lock mechanism prevents movement of the second unit from the second retracted position to the second exposed position when the first unit is not in the first exposed position.Type: GrantFiled: June 25, 2007Date of Patent: March 31, 2015Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Toshiki Takiguchi, Junya Masuda, Hiroyuki Murai
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Publication number: 20150076294Abstract: The elastic force of a spring 41 in a direction of an arrow X is applied to an end 51A of a coil spring 5A in a direction of an arrow Y through a holding plate 42. The end 52A of the coil spring 5A is engaged with a holding hole 12 and regulated from moving in the direction of the arrow Y. The elastic force of the spring 41 in the direction of the arrow X is constantly applied to the coil spring 5A in a direction in which the peripheral surface of the support post 3 is tightened.Type: ApplicationFiled: September 9, 2014Publication date: March 19, 2015Inventors: Toshihiko SEIKE, Takahisa NARIKIYO, Kouji WAKAMOTO, Junya MASUDA
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Patent number: 8109511Abstract: A paper discharger is configured so as to perform paper conveying process to a first stacking tray and paper conveying process to a second stacking tray by a driving force from a single motor capable of reversible rotation in both directions. An image forming apparatus includes a movable door configured so as to support the second stacking tray, and a second gear train. Between a group of gears configuring the second gear train and a discharge roller is disposed a one way clutch configured so as to transmit driving force to the discharge roller only in the direction of discharging paper to the second stacking tray.Type: GrantFiled: June 28, 2010Date of Patent: February 7, 2012Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Takashi Kubo
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Publication number: 20100327522Abstract: A paper discharger is configured so as to perform paper conveying process to a first stacking tray and paper conveying process to a second stacking tray by a driving force from a single motor capable of reversible rotation in both directions. An image forming apparatus includes a movable door configured so as to support the second stacking tray, and a second gear train. Between a group of gears configuring the second gear train and a discharge roller is disposed a one way clutch configured so as to transmit driving force to the discharge roller only in the direction of discharging paper to the second stacking tray.Type: ApplicationFiled: June 28, 2010Publication date: December 30, 2010Inventors: Toshihiko SEIKE, Takashi Kubo
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Patent number: 7792461Abstract: A unit drawing mechanism according to the present invention includes a drawing unit, a lever, a fixture, a preventer, a linkage, and a lever holder. The drawing unit can move along a movement path between a retracted position in an apparatus and an exposed position outside the apparatus. The lever is supported pivotably on the front side of the drawing unit. The fixture locks the drawing unit in the retracted position. The preventer prevents the drawing unit from moving from the exposed position. The linkage links the lever to the fixture and the preventer. The lever holder holds the lever in a first angular position, a second angular position, and a third angular position when the drawing unit is locked by the fixture, positioned on the movement path, and prevented by the preventer from moving from the exposed position, respectively.Type: GrantFiled: January 29, 2008Date of Patent: September 7, 2010Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Junya Masuda, Kouji Wakamoto
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Patent number: 7780162Abstract: Rack gears of far-side paper guides are provided such that manners of meshing with pinion gears are made tighter at respective regions corresponding to locations for constraining paper of standard size, as compared to other regions. In addition, by constituting width guide plates which are upstream in a paper feed directions from far-side paper guides and width guide plates which are downstream in a paper feed directions therefrom such that respective areas of surfaces receiving paper, and respective distances from respective width guide plates to gear mesh locations, are respectively set so as to be substantially mutually equal. Impacts from stacks of paper produced during placement of paper within a paper supply apparatus may be received substantially equal at upstream and downstream from gear mesh of far-side paper guides, and torques acting on far-side paper guides upstream and downstream from gear mesh locations may be made substantially mutually equal.Type: GrantFiled: July 29, 2004Date of Patent: August 24, 2010Assignee: Sharp Kabushiki KaishaInventors: Hidetoshi Kaneko, Toshihiko Seike, Masatsugu Ohishi, Kengo Matsuyama
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Patent number: 7735825Abstract: In one embodiment of the original feeding device of the present invention, an original feeding device causes a drawing roller to contact an original, and draws the original for forwarding by rotating the drawing roller, and is provided with an original pressing member that generates frictional force on the original surface at a position on the side further upstream in a forwarding direction of the original than the drawing roller.Type: GrantFiled: September 15, 2006Date of Patent: June 15, 2010Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Hideshi Izumi, Takashi Makiura, Yu-hi Akagawa
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Patent number: 7664429Abstract: A transfer mechanism includes: a transfer unit having a transfer belt; and a belt contact and separation assembly for bringing the transfer belt into, and separating it away from, an electrostatic latent image support by shifting the position of the transfer unit. The belt contact and separation assembly includes: a multiple number of transfer unit shifters that abut the transfer unit and shift the position of the transfer unit; a multiple number of linkage members that link with the plural transfer unit shifters, correspondingly; an elastic member for coupling the plural linkage members; and a driver for actuating the transfer unit shifters through the linkage members.Type: GrantFiled: June 25, 2007Date of Patent: February 16, 2010Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Murai, Toshiki Takiguchi, Junya Masuda, Toshihiko Seike, Kazuhiro Matsuyama
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Publication number: 20100013144Abstract: In one embodiment of the invention, in a paper feed apparatus having a half-moon roller disposed above a plurality of sheets of paper stored in a stacked manner, and an auxiliary roller provided along one end of a half-circumferential face of the half-moon roller, the half-moon roller being rotated in a state in which a topmost sheet of paper has been put in contact with a height regulating member due to the sheets of paper being biased upward, so that the auxiliary roller and the half-circumferential face of the half-moon roller are successively pushed against the topmost sheet of paper, and while the sheets of paper are pushed down by the auxiliary roller or the half-circumferential face of the half-moon roller, the topmost sheet of paper is pulled out by the half-circumferential face of the half-moon roller: the one end of the half-circumferential face of the half-moon roller is separated from the auxiliary roller, and a curvature of the one end of the half-circumferential face is gradually increased closeType: ApplicationFiled: July 2, 2009Publication date: January 21, 2010Inventors: Toshihiko SEIKE, Yuhi Akagawa
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Patent number: 7484730Abstract: Pyrazolo-quinazoline derivatives of formula (Ia) or (Ib) as defined in the specification, and pharmeceutically acceptable salts thereof, process for their preparation and pharmaceutical composition comprising them are disclosed; the compounds of the invention maybe useful in therapy, in the treatment of diseases associated with a disregulated protein kinase activity, like cancer.Type: GrantFiled: February 2, 2006Date of Patent: February 3, 2009Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Seike, Hideshi Izumi, Yuhi Akagawa, Tatsuya Shinkawa
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Publication number: 20080260419Abstract: A unit drawing mechanism according to the present invention includes a drawing unit, a lever, a fixture, a preventer, a linkage, and a lever holder. The drawing unit can move along a movement path between a retracted position in an apparatus and an exposed position outside the apparatus. The lever is supported pivotably on the front side of the drawing unit. The fixture locks the drawing unit in the retracted position. The preventer prevents the drawing unit from moving from the exposed position. The linkage links the lever to the fixture and the preventer. The lever holder holds the lever in a first angular position, a second angular position, and a third angular position when the drawing unit is locked by the fixture, positioned on the movement path, and prevented by the preventer from moving from the exposed position, respectively.Type: ApplicationFiled: January 29, 2008Publication date: October 23, 2008Inventors: Toshihiko SEIKE, Junya Masuda, Kouji Wakamoto
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Publication number: 20080124139Abstract: A transfer mechanism includes: a transfer unit having a transfer belt; and a belt contact and separation assembly for bringing the transfer belt into, and separating it away from, an electrostatic latent image support by shifting the position of the transfer unit. The belt contact and separation assembly includes:a multiple number of transfer unit shifters that abut the transfer unit and shift the position of the transfer unit; a multiple number of linkage members that link with the plural transfer unit shifters, correspondingly; an elastic member for coupling the plural linkage members; and a driver for actuating the transfer unit shifters through the linkage members.Type: ApplicationFiled: June 25, 2007Publication date: May 29, 2008Inventors: Hiroyuki MURAI, Toshiki TAKIGUCHI, Junya MASUDA, Toshihiko SEIKE, Kazuhiro MATSUYAMA