Patents by Inventor Yushi Oka
Yushi Oka 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: 8439340Abstract: A finisher includes an intermediate tray that collects sheets to form a sheet bundle, a sheet gripping member that grips one end of the sheet bundle in a conveying direction and a positioning member that grips the other end of the sheet bundle in a conveying direction, a moving portion that moves the sheet gripping member and the positioning member to come close to each other, a pair of folding rollers that folds the sheet bundle while conveying the sheet bundle, a projecting member that projects a part between the one end and the other end of the gripped sheet bundle toward the pair of folding rollers, and a controller that controls the moving portion, such that the sheet gripping member and the positioning member come close to each other in synchronization with an operation of projecting the projecting member toward the sheet bundle.Type: GrantFiled: August 4, 2011Date of Patent: May 14, 2013Assignee: Canon Kabushiki KaishaInventors: Hiromasa Maenishi, Mitsuhiko Sato, Naoto Watanabe, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Yutaka Ando
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Patent number: 8413978Abstract: A sheet processing apparatus includes a punch portion punching a hole at an end part of a sheet, and a push-out member discharging the sheet by pushing the end part of the sheet where the punch process is performed by the punch portion. The push-out member discharges the sheet at a sheet discharging speed lower than a predetermined speed from the intermediate process tray in accordance with punch process information (i.e., combination of a size and a type of the sheet and number, a shape and a size of holes) that strength of a sheet end part is decreased by the punch process, and is lower than predetermined sheet strength capable of being discharged at the predetermined speed.Type: GrantFiled: July 2, 2010Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventors: Naoto Watanabe, Manabu Yamauchi, Takayuki Fujii, Satoru Yamamoto, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Shunsuke Nishimura, Hidenori Matsumoto
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Patent number: 8393372Abstract: The sheet processing apparatus includes a buffer roller to form a sheet bundle by overlapping a plurality of sheets while respectively displacing an end part of each sheet at one end of the conveying direction toward the conveying direction, a fold conveying path to fold the displaced and overlapped sheet bundle twice into three layers so that the end part at one end covers an end part at the other end and the end parts at the one end are respectively exposed, and a sealer to seal the sheet bundle by adhering the end part at the one end of the twice-folded sheet bundle to a surface of the sheet bundle with a seal. The sealer adheres all of the end parts at the one end and the surface of the sheet bundle with a seal having length longer than exposed length of the end parts at the one end.Type: GrantFiled: June 9, 2010Date of Patent: March 12, 2013Assignee: Canon Kabushiki KaishaInventors: Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Shunsuke Nishimura, Satoru Yamamoto, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto
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Patent number: 8308154Abstract: A control method for an image forming system capable of preventing reduction of the ability of the system even if a shift transportation function becomes an abnormal condition. An image forming apparatus forms an image on a sheet. A first sheet process apparatus has a first moving unit receiving the sheet on which the image is formed and moving the sheet in a width direction. In a determination step, it is determined whether a second sheet process apparatus having a second moving unit moving the sheet in the width direction is connected to an upstream side of the first sheet process apparatus. In a detection step, it is detected an abnormal condition of the first moving unit. In a sheet movement step, the second moving unit moves the sheet in the width direction if an abnormal condition is detected and the second sheet process apparatus is connected.Type: GrantFiled: February 24, 2009Date of Patent: November 13, 2012Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Miyake, Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Shunsuke Nishimura, Satoru Yamamoto, Yushi Oka, Takashi Yokoya, Hidenori Matsumoto
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Patent number: 8157255Abstract: The inserter including a storing unit, a sheet-feeding unit; a conveyance unit; and a controller that determines for every sheet a conveying speed of the sheet to be discharged to the downstream side device by the conveyance unit, in which the controller determines: the conveying speed of the sheet, which was discharged from the image forming apparatus, when the sheet is discharged to the downstream side device by the conveyance unit, based on the conveying speed when the inserter receives the sheet discharged from the image forming apparatus; and a conveying speed of the insert-sheet, which was fed by the sheet-feeding unit, when the insert-sheet is discharged to the downstream side device by the conveyance unit, based on a conveying speed of one of a preceding sheet and a succeeding sheet, when one of the preceding sheet and the succeeding sheet is discharged to the downstream side device.Type: GrantFiled: September 16, 2011Date of Patent: April 17, 2012Assignee: Canon Kabushiki KaishaInventors: Shunsuke Nishimura, Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto, Satoru Yamamoto
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Publication number: 20120070250Abstract: An image forming apparatus that enables to execute a bookbinding process for sheet bundles without decreasing productivity. The image forming apparatus is connected to a bookbinding apparatus having a bookbinding unit that binds a book by attaching a ring to a punch hole and a buffer unit that performs a buffering process to convey sheets in piles so that sheets for a next sheet bundle are not ejected onto a sheet bundle that is being processed by the bookbinding unit. A determination unit determines whether a sheet is a type that is prohibited from buffering. A control unit adjusts an ejection order so that the sheet of the type that is prohibited from buffering is not ejected within the predetermined number of sheets from the first sheet of sheets that constitute the sheet bundle, when the determination unit determines that the sheet is the type that is prohibited from buffering.Type: ApplicationFiled: September 15, 2011Publication date: March 22, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Yutaka Ando, Mitsuhiko Sato, Naoto Watanabe, Takayuki Fujii, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hiromasa Maenishi
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Publication number: 20120043713Abstract: A finisher according to an aspect of the invention includes an intermediate tray that collects sheets to form a sheet bundle, a sheet gripping member that grips one end of the sheet bundle in a conveying direction and a positioning member that grips the other end of the sheet bundle in a conveying direction, a moving portion that moves the sheet gripping member and the positioning member to come close each other, a pair of folding rollers that folds the sheet bundle while conveying the sheet bundle, a projecting member that projects a part between the one end and the other end of the gripped sheet bundle toward the pair of folding rollers, a controller that controls the moving portion, such that the sheet gripping member and the positioning member come close each other in synchronization with an operation of projecting the projecting member toward the sheet bundle S.Type: ApplicationFiled: August 4, 2011Publication date: February 23, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Hiromasa Maenishi, Mitsuhiko Sato, Naoto Watanabe, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Yutaka Ando
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Publication number: 20120007302Abstract: The inserter including a storing unit, a sheet-feeding unit; a conveyance unit; and a controller that determines for every sheet a conveying speed of the sheet to be discharged to the downstream side device by the conveyance unit, in which the controller determines: the conveying speed of the sheet, which was discharged from the image forming apparatus, when the sheet is discharged to the downstream side device by the conveyance unit, based on the conveying speed when the inserter receives the sheet discharged from the image forming apparatus; and a conveying speed of the insert-sheet, which was fed by the sheet-feeding unit, when the insert-sheet is discharged to the downstream side device by the conveyance unit, based on a conveying speed of one of a preceding sheet and a succeeding sheet, when one of the preceding sheet and the succeeding sheet is discharged to the downstream side device.Type: ApplicationFiled: September 16, 2011Publication date: January 12, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Shunsuke Nishimura, Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto, Satoru Yamamoto
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Patent number: 8038139Abstract: The inserter including a storing unit, a sheet-feeding unit; a conveyance unit; and a controller that determines for every sheet a conveying speed of the sheet to be discharged to the downstream side device by the conveyance unit, in which the controller determines: the conveying speed of the sheet, which was discharged from the image forming apparatus, when the sheet is discharged to the downstream side device by the conveyance unit, based on the conveying speed when the inserter receives the sheet discharged from the image forming apparatus; and a conveying speed of the insert-sheet, which was fed by the sheet-feeding unit, when the insert-sheet is discharged to the downstream side device by the conveyance unit, based on a conveying speed of one of a preceding sheet and a succeeding sheet, when one of the preceding sheet and the succeeding sheet is discharged to the downstream side device.Type: GrantFiled: June 18, 2009Date of Patent: October 18, 2011Assignee: Canon Kabushiki KaishaInventors: Shunsuke Nishimura, Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto, Satoru Yamamoto
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Patent number: 8019270Abstract: A binding apparatus which can meet user requests and adapt to usage conditions by a user. An adhesive is heated and melted, and then applied to a sheet bundle to bind the sheet bundle. One of the following modes is selected: a first adhesive temperature adjusting mode in which the adhesive is heated when power supply to the bookbinding apparatus is turned on, and a second adhesive temperature adjusting mode in which the adhesive is heated when binding of the sheet bundle is started.Type: GrantFiled: August 30, 2006Date of Patent: September 13, 2011Assignee: Canon Kabushiki KaishaInventors: Takayuki Fujii, Manabu Yamauchi, Naoto Watanabe, Shunsuke Nishimura, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya
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Patent number: 7938388Abstract: A sheet processing apparatus includes a folding apparatus which folds a sheet bundle, a switching portion which switches a nipping pressure of the folding apparatus against the sheet bundle, and a flattening apparatus which presses and flattens a folded-back portion of the folded sheet bundle. The switching portion operates such that the nipping pressure of the folding apparatus against the sheet bundle when the flattening processing is executed becomes weaker than that of the folding apparatus when the flattening processing is not executed.Type: GrantFiled: October 15, 2008Date of Patent: May 10, 2011Assignee: Canon Kabushiki KaishaInventors: Takayuki Fujii, Manabu Yamauchi, Shunsuke Nishimura, Toshiyuki Miyake, Hidenori Matsumoto, Yushi Oka
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Patent number: 7878496Abstract: A sheet processing apparatus for binding a sheet bundle by a binding member having a curved shape, including: a support portion configured to support, as a sheet bundle, a plurality of sheets having punch holes formed therein; an adjustment portion configured to adjust a position of each of punch holes formed in the sheet bundle so that a locus of centers of the punch holes continuing in a thickness direction of the sheet bundle supported by the support portion is aligned with the curved shape of the binding member; and an attaching portion configured to attach the binding member to the punch holes of the sheet bundle in which the position of each of the plurality of sheets is adjusted by the adjustment portion.Type: GrantFiled: April 3, 2008Date of Patent: February 1, 2011Assignee: Canon Kabushiki KaishaInventors: Takayuki Fujii, Manabu Yamauchi, Naoto Watanabe, Shunsuke Nishimura, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto
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Publication number: 20110008089Abstract: The present invention provides a sheet processing apparatus which includes a punch portion punching a hole at an end part of a sheet, and a push-out member discharging the sheet by pushing the end part of the sheet where the punch process is performed by the punch portion; and the push-out member discharges the sheet at a sheet discharging speed lower than a predetermined speed from the intermediate process tray in accordance with punch process information (i.e., combination of a size and a type of the sheet and number, a shape and a size of holes) that strength of a sheet end part is decreased by the punch process, and is lower than predetermined sheet strength capable of being discharged at the predetermined speed.Type: ApplicationFiled: July 2, 2010Publication date: January 13, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Naoto Watanabe, Manabu Yamauchi, Takayuki Fujii, Satoru Yamamoto, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Shunsuke Nishimura, Hidenori Matsumoto
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Patent number: 7865106Abstract: A sheet post-processing apparatus has a sheet conveying portion which receives and conveys a sheet discharged from an apparatus on an upstream side, and discharges it to an apparatus on a downstream side or a discharge tray, a sheet post-processing portion which carried out post-processing on the sheet, and a power saving control portion which renders the sheet post-processing apparatus into a power saving state, and the power saving control portion maintains electric power supply to the sheet conveying portion, and interrupts electric power supply to the sheet post-processing portion. The sheet post-processing apparatus, even in the power saving state, is capable of discharging the sheet discharged from the apparatus on the upstream side to the apparatus on the downstream side or a discharge tray.Type: GrantFiled: August 21, 2009Date of Patent: January 4, 2011Assignee: Canon Kabushiki KaishaInventors: Naoto Watanabe, Takayuki Fujii, Shunsuke Nishimura, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Manabu Yamauchi
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Publication number: 20100320679Abstract: A sheet stacking apparatus includes a stack unit which includes a first stack tray and a second stack tray which can be individually elevated and is configured to stack a sheet on at least one of the first stack tray and the second tray, and a control unit configured to control the stack unit to stack the sheet in a first stack mode in which the sheet is stacked on at least one of the first stack tray and the second stack tray without being extended over the first stack tray and the second stack tray and a second stack mode in which the sheet is stacked on across the first stack tray and the second stack tray, the control unit capable of selecting the first stack mode and the second stack mode with respect to a same size sheet.Type: ApplicationFiled: June 11, 2010Publication date: December 23, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Toshiyuki Miyake, Mitsuhiko Sato, Naoto Watanabe, Takayuki Fujii, Yushi Oka, Takashi Yokoya, Hiromasa Maenishi, Yutaka Ando
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Publication number: 20100314049Abstract: The sheet processing apparatus includes a buffer roller to form a sheet bundle by overlapping a plurality of sheets while respectively displacing an end part of each sheet at one end of the conveying direction toward the conveying direction, a fold conveying path to fold the displaced and overlapped sheet bundle twice into three layers so that the end part at one end covers an end part at the other end and the end parts at the one end are respectively exposed, and a sealer to seal the sheet bundle by adhering the end part at the one end of the twice-folded sheet bundle to a surface of the sheet bundle with a seal. The sealer adheres all of the end parts at the one end and the surface of the sheet bundle with a seal having length longer than exposed length of the end parts at the one end.Type: ApplicationFiled: June 9, 2010Publication date: December 16, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Shunsuke Nishimura, Satoru Yamamoto, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto
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Patent number: 7813660Abstract: An image forming apparatus forms a toner image onto sheets at the first feeding interval on a photoconductor or intermediate transfer member and, if the temperature of a fixing unit falls outside a set temperature range, the sheet layout is changed to a feeding interval wider than the first feeding interval. Adjustment processing is performed based on the image forming condition so that the feeding interval is changed to a wider one in the feeding interval changing step during image formation and it is determined in the determination step to perform adjustment processing, toner patch images are formed in an area where no toner image is formed on the photoconductor or intermediate transfer member . The adjustment processing is performed based on reading toner patch images.Type: GrantFiled: September 21, 2007Date of Patent: October 12, 2010Assignee: Canon Kabushiki KaishaInventors: Katsumi Takahashi, Yuichiro Maeda, Yushi Oka, Kenji Kuroki, Yuzo Matsumoto, Kazunori Togashi, Takuya Kawamura
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Publication number: 20100247203Abstract: A sheet processing apparatus which has a flattening processing unit which presses a folded end of a folded booklet bundle to flatten the folded end, and cutting units which cut and align edges of the booklet bundle, wherein the edges crossing the folded end of the booklet bundle are cut by the cutting unit and the folded end of the booklet is then flattened by the flattening processing unit.Type: ApplicationFiled: December 4, 2008Publication date: September 30, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Naoto Watanabe, Manabu Yamauchi, Takayuki Fujii, Shunsuke Nishimura, Yushi Oka, Toshiyuki Miyake, Takashi Yokoya, Hidenori Matsumoto
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Patent number: 7762536Abstract: This invention can improve the appearance quality of a pamphlet produced by suppressing a swell of a folded sheet bundle and prevent a drop in productivity without enlarging the size of a sheet processing apparatus. A sheet bundle receiving position is changed depending on a sheet size and the moving direction of the press unit is changed corresponding to the sheet size of a conveyed sheet bundle. As a consequence, the enlargement of the sheet processing apparatus can be avoided without deteriorating productivity.Type: GrantFiled: September 16, 2009Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventors: Yasuo Fukatsu, Yushi Oka
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Patent number: 7726641Abstract: An image forming apparatus which enables the user to easily remove a sheet bundle left in the apparatus after a bookbinding-mode job is stopped in the middle of execution thereof. In a bookbinding mode of the apparatus, in a sheet stacking section, a plurality of sheets having images formed thereon are stacked as a sheet bundle; in a gluing section, glue is applied to an end face of the sheet bundle; and in a bonding section, a cover sheet is bonded to the sheet bundle to wrap the sheet bundle in the cover sheet. When a bookbinding-mode job is canceled during execution thereof, in the gluing section, glue is applied to the sheet bundle stacked in the stacking section before the job is stopped, and a discharge section discharges the glue-applied sheet bundle which is neither wrapped nor trimmed.Type: GrantFiled: March 18, 2009Date of Patent: June 1, 2010Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Miyake, Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Shunsuke Nishimura, Yushi Oka, Takashi Yokoya