Patents by Inventor Ryohei Ohtsuki
Ryohei Ohtsuki 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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Patent number: 8550458Abstract: A paper feeder according to the present invention includes a paper entrance block arranged above a flapper on au upstream side of a paper feed roller in a paper feeding direction. The flapper is configured to be capable of swinging in a vertical direction so as to alter its position between a first position in which part of a top face thereof on a downstream side in the paper feeding direction comes into contact with the paper feed roller and a second position in which the part thereof is located lower than the first position. The paper entrance block is configured so that when the flapper is in the first position, the lower end thereof comes into contact with the flapper and when the flapper is in the second position, a clearance is formed in a vertical direction between the paper entrance block and the flapper.Type: GrantFiled: July 31, 2012Date of Patent: October 8, 2013Assignee: Murata Machinery, Ltd.Inventor: Ryohei Ohtsuki
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Publication number: 20130049291Abstract: A paper feeder according to the present invention includes a paper entrance block arranged above a flapper on au upstream side of a paper feed roller in a paper feeding direction. The flapper is configured to be capable of swinging in a vertical direction so as to alter its position between a first position in which part of a top face thereof on a downstream side in the paper feeding direction comes into contact with the paper feed roller and a second position in which the part thereof is located lower than the first position. The paper entrance block is configured so that when the flapper is in the first position, the lower end thereof comes into contact with the flapper and when the flapper is in the second position, a clearance is formed in a vertical direction between the paper entrance block and the flapper.Type: ApplicationFiled: July 31, 2012Publication date: February 28, 2013Applicant: Murata Machinery, Ltd.Inventor: Ryohei Ohtsuki
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Patent number: 8087658Abstract: A multifunction peripheral includes a main body, a jam access cover, and a manual paper feeding tray. The jam access cover can expose the interior of the main body by being rotated. The manual paper feeding tray is attached to the jam access cover so as to be rotatable with a tray rotation shaft at a position that is different from a jam access cover rotation shaft as a center. A projection is arranged on the manual paper feeding tray so as to contact with a recess on the main body side to regulate the rotation of the manual paper feeding tray when the jam access cover is opened. The manual paper feeding tray includes a distal end that is located a higher position than the jam access cover rotation shaft when the projection contacts with the recess.Type: GrantFiled: May 5, 2010Date of Patent: January 3, 2012Assignee: Murata Machinery, Ltd.Inventor: Ryohei Ohtsuki
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Publication number: 20110001284Abstract: A multifunction peripheral includes a main body, a jam access cover, and a manual paper feeding tray. The jam access cover can expose the interior of the main body by being rotated. The manual paper feeding tray is attached to the jam access cover so as to be rotatable with a tray rotation shaft at a position that is different from a jam access cover rotation shaft as a center. A projection is arranged on the manual paper feeding tray so as to contact with a recess on the main body side to regulate the rotation of the manual paper feeding tray when the jam access cover is opened. The manual paper feeding tray includes a distal end that is located a higher position than the jam access cover rotation shaft when the projection contacts with the recess.Type: ApplicationFiled: May 5, 2010Publication date: January 6, 2011Applicant: MURATA MACHINERY, LTD.Inventor: Ryohei OHTSUKI
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Publication number: 20090317146Abstract: An image forming apparatus includes a plurality of image forming units arranged to form toner images of different colors on surfaces of photoconductive drums, an intermediate transfer unit that has an intermediate transfer belt arranged in the vicinity of the photoconductive drums and a plurality of intermediate transfer rollers opposed to the respective photoconductive drums through the intermediate transfer belt, and that transfers the toner images formed on the photoconductive drums to the intermediate transfer belt, and a transfer unit arranged to transfer, to a piece of paper, the toner images of different colors transferred to the intermediate transfer belt.Type: ApplicationFiled: May 7, 2009Publication date: December 24, 2009Applicant: MURATA MACHINERY, LTD.Inventor: Ryohei OHTSUKI
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Patent number: 7551887Abstract: An image forming device includes an inner guide, a first outer guide, a second outer guide and a control device. A fusing casing is arranged between the inner guide and a heat roller. The inner guide forms a downstream end portion of a transportation path and a paper output path. The first outer guide is arranged at a position facing an open portion of a fusing casing across the transportation path, defines the downstream end portion of the transportation path together with the inner guide, and includes a hook-shaped portion curved to guide printing paper to the paper output path. The second outer guide defines the paper output path together with the inner guide, and defines an upstream end portion of the reversal path. The control device controls a linear speed of a paper output roller to be faster than a linear speed of a duplex transportation roller at a switchback transportation of the printing paper.Type: GrantFiled: March 22, 2006Date of Patent: June 23, 2009Assignee: Murata Machinery, Ltd.Inventor: Ryohei Ohtsuki
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Publication number: 20080107446Abstract: In an image forming apparatus, a jam access cover is mounted to an apparatus body so as to be rotatable with respect to the apparatus body. A manual feeding tray is mounted to the jam access cover in the vicinity of an upper end portion thereof so as to be rotatable with respect to the jam access cover. This allows the jam access cover to be effectively used as a mounting portion for the manual feeding tray.Type: ApplicationFiled: April 12, 2007Publication date: May 8, 2008Applicant: MURATA KIKAI KABUSHIKI KAISHAInventor: Ryohei OHTSUKI
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Publication number: 20060239734Abstract: An image forming device includes an inner guide, a first outer guide, a second outer guide and a control device. A fusing casing is arranged between the inner guide and a heat roller. The inner guide forms a downstream end portion of a transportation path and a paper output path. The first outer guide is arranged at a position facing an open portion of a fusing casing across the transportation path, defines the downstream end portion of the transportation path together with the inner guide, and includes a hook-shaped portion curved to guide printing paper to the paper output path. The second outer guide defines the paper output path together with the inner guide, and defines an upstream end portion of the reversal path. The control device controls a linear speed of a paper output roller to be faster than a linear speed of a duplex transportation roller at a switchback transportation of the printing paper.Type: ApplicationFiled: March 22, 2006Publication date: October 26, 2006Inventor: Ryohei Ohtsuki