Patents by Inventor Shigefumi Soga
Shigefumi Soga 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: 11530103Abstract: A sheet feeding device includes a roller pair being mutually non-separable; and a roller pair being mutually separable. The sheet feeding device temporarily stops a sheet in a registration position of the non-separable roller pair and then resumes feeding the sheet. The sheet feeding device feeds sheets such that a following sheet reaches the registration position from the separable roller pair after completion of ejection of a preceding sheet.Type: GrantFiled: September 15, 2020Date of Patent: December 20, 2022Assignee: RICOH COMPANY, LTD.Inventors: Ryohei Morisaki, Shigefumi Soga, Chisa Kato
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Publication number: 20210087007Abstract: A sheet feeding device includes a roller pair being mutually non-separable; and a roller pair being mutually separable. The sheet feeding device temporarily stops a sheet in a registration position of the non-separable roller pair and then resumes feeding the sheet. The sheet feeding device feeds sheets such that a following sheet reaches the registration position from the separable roller pair after completion of ejection of a preceding sheet.Type: ApplicationFiled: September 15, 2020Publication date: March 25, 2021Applicant: Ricoh Company, Ltd.Inventors: Ryohei Morisaki, Shigefumi Soga, Chisa Kato
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Patent number: 8770570Abstract: A sheet processing device provided with a stacking unit configured to stack thereon one or more conveyed sheets, a staple unit configured to staple a bundle of sheets stacked on the stacking unit, a moving unit configured to move the staple unit to a staple position, and a projecting and retrieving unit configured to project and retrieve the stacking unit in a space overlapped with a motion space for the staple unit to move therein.Type: GrantFiled: February 20, 2012Date of Patent: July 8, 2014Assignee: Ricoh Company, LimitedInventor: Shigefumi Soga
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Patent number: 8511678Abstract: A sheet processing apparatus includes a fixed tray and a movable tray. The fixed tray is fixed at its downstream portion in a sheet transport direction and includes a sheet loading surface. A downstream portion of the sheet loading surface of the fixed tray is positioned at a higher level than an upstream portion thereof. The movable tray is pivotally supported, at its upstream portion, by a pivot support provided on the fixed tray. An angle between a sheet loading surface of the movable tray and a horizontal direction is more gentle than an angle between the sheet loading surface of the fixed tray and the horizontal direction.Type: GrantFiled: February 23, 2010Date of Patent: August 20, 2013Assignee: Ricoh Company, LimitedInventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida
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Patent number: 8433236Abstract: A paper processing apparatus includes: a discharging unit that discharges the paper onto a staple tray; a paper returning unit that reverses the paper discharged by the discharging unit and performs alignment in a conveying direction by abutting the paper against a rear end reference fence; a supporting unit that supports the discharging unit in a state capable of coming in contact with or separating from the paper; a contact and separation unit by which the discharging unit comes in contact with or separates from the paper; and a pressurizing unit that is moved by the contact and separation unit, does not load the discharging unit in a standby state where the discharging unit is held apart from the paper, and applies contact pressure in a state where the discharging unit is in contact with the paper.Type: GrantFiled: September 24, 2010Date of Patent: April 30, 2013Assignee: Ricoh Company, Ltd.Inventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Daishi Watanabe, Kazumasa Takeuchi, Hiroki Yoshida
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Publication number: 20120223470Abstract: A sheet processing device provided with a stacking unit configured to stack thereon one or more conveyed sheets, a staple unit configured to staple a bundle of sheets stacked on the stacking unit, a moving unit configured to move the staple unit to a staple position, and a projecting and retrieving unit configured to project and retrieve the stacking unit in a space overlapped with a motion space for the staple unit to move therein.Type: ApplicationFiled: February 20, 2012Publication date: September 6, 2012Applicant: RICOH COMPANY, LIMITEDInventor: Shigefumi Soga
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Patent number: 8196915Abstract: A sheet processing apparatus includes: a staple tray on which sheets are stacked temporarily and stapled after being aligned together and from which the stapled sheets are discharged to a discharge tray; a discharger to discharge the sheets to the staple tray; a rear end reference against which rear ends of the sheets are abutted to be aligned together; a returner to return the sheets discharged by the discharger and to align the sheets together in a conveying direction based on the rear end reference fence; a lifter to lift and lower the returner with respect to a sheet; and a guide configured to guide the sheets toward the rear end reference fence when the sheets are returned and to be lifted and lowered in synchronization with the lifting and lowering by the lifter.Type: GrantFiled: September 14, 2010Date of Patent: June 12, 2012Assignee: Ricoh Company, Ltd.Inventors: Takeshi Hirabayashi, Shigefumi Soga, Terumitsu Azuma, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida, Toshikazu Satoh, Daishi Watanabe, Kazumasa Takeuchi
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Publication number: 20110091260Abstract: A paper processing apparatus includes: a discharging unit that discharges the paper onto a staple tray; a paper returning unit that reverses the paper discharged by the discharging unit and performs alignment in a conveying direction by abutting the paper against a rear end reference fence; a supporting unit that supports the discharging unit in a state capable of coming in contact with or separating from the paper; a contact and separation unit by which the discharging unit comes in contact with or separates from the paper; and a pressurizing unit that is moved by the contact and separation unit, does not load the discharging unit in a standby state where the discharging unit is held apart from the paper, and applies contact pressure in a state where the discharging unit is in contact with the paper.Type: ApplicationFiled: September 24, 2010Publication date: April 21, 2011Applicant: Ricoh Company, Ltd.Inventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Daishi Watanabe, Kazumasa Takeuchi, Hiroki Yoshida
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Publication number: 20110074081Abstract: A sheet processing apparatus includes: a staple tray on which sheets are stacked temporarily and stapled after being aligned together and from which the stapled sheets are discharged to a discharge tray; a discharger to discharge the sheets to the staple tray; a rear end reference against which rear ends of the sheets are abutted to be aligned together; a returner to return the sheets discharged by the discharger and to align the sheets together in a conveying direction based on the rear end reference fence; a lifter to lift and lower the returner with respect to a sheet; and a guide configured to guide the sheets toward the rear end reference fence when the sheets are returned and to be lifted and lowered in synchronization with the lifting and lowering by the lifter.Type: ApplicationFiled: September 14, 2010Publication date: March 31, 2011Applicant: RICOH COMPANY, LIMITEDInventors: Takeshi Hirabayashi, Shigefumi Soga, Terumitsu Azuma, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida, Toshikazu Satoh, Daishi Watanabe, Kazumasa Takeuchi
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Publication number: 20100237556Abstract: A sheet processing apparatus includes a fixed tray and a movable tray. The fixed tray is fixed at its downstream portion in a sheet transport direction and includes a sheet loading surface. A downstream portion of the sheet loading surface of the fixed tray is positioned at a higher level than an upstream portion thereof. The movable tray is pivotally supported, at its upstream portion, by a pivot support provided on the fixed tray. An angle between a sheet loading surface of the movable tray and a horizontal direction is more gentle than an angle between the sheet loading surface of the fixed tray and the horizontal direction.Type: ApplicationFiled: February 23, 2010Publication date: September 23, 2010Inventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida
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Patent number: 6851609Abstract: An image reading apparatus includes a line sensor for reading an image of an original, a scanning optical system that has a light source and scans the original, a reference reflection member provided in such a position as to reflect a light emitted from the light source, a buffer memory for storing data of the image, an intermittent reading part interrupting and restarting scanning performed by the scanning optical system based on a residual storage capacity of the buffer memory, and a light amount variation correction part correcting a variation in an amount of light of the light source during an interruption of the scanning based on an amount of reflected light from the reference reflection member.Type: GrantFiled: October 26, 2001Date of Patent: February 8, 2005Assignee: Ricoh Company, Ltd.Inventors: Kazuhiro Ando, Yukio Noguchi, Koichi Ichihara, Youji Mouri, Fumihiro Kitahara, Kazuhiko Nakaya, Shigefumi Soga, Hisatsugu Niki
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Publication number: 20020050520Abstract: An image reading apparatus includes a line sensor for reading an image of an original, a scanning optical system that has a light source and scans the original, a reference reflection member provided in such a position as to reflect a light emitted from the light source, a buffer memory for storing data of the image, an intermittent reading part interrupting and restarting scanning performed by the scanning optical system based on a residual storage capacity of the buffer memory, and a light amount variation correction part correcting a variation in an amount of light of the light source during an interruption of the scanning based on an amount of reflected light from the reference reflection member.Type: ApplicationFiled: October 26, 2001Publication date: May 2, 2002Inventors: Kazuhiro Ando, Yukio Noguchi, Koichi Ichihara, Youji Mouri, Fumihiro Kitahara, Kazuhiko Nakaya, Shigefumi Soga, Hisatsugu Niki