Patents by Inventor Hiromichi Tsujino
Hiromichi Tsujino 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: 20050263957Abstract: A sheet stacking apparatus which is capable of reliably sandwiching or catching sheets, and also capable of providing control so as to ensure reliable conveyance of succeeding sheets during the catching operation. A stack tray is provided downstream of a processing tray that stacks sheets. A position on the stacking surface of the stack tray at which the leading end of a sheet having its trailing end passing a discharging section, which discharges sheets toward the processing tray, contacts the stacking surface is lower in level than the highest portion of the processing tray. A swinging arm that discharges the sheets stacked on the processing tray to the stack tray is capable of selectively assuming a catching state in which a sheet discharged to the processing tray is caught by the swinging arm, and a non-catching state in which a sheet discharged to the processing tray is not caught by the swinging arm.Type: ApplicationFiled: July 29, 2005Publication date: December 1, 2005Applicant: Canon Kabushiki KaishaInventors: Yuzo Matsumoto, Hiromichi Tsujino, Mitsushige Murata, Takako Hanada
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Patent number: 6962331Abstract: A sheet stacking apparatus which is capable of reliably sandwiching or catching sheets, and also capable of providing control so as to ensure reliable conveyance of succeeding sheets during the catching operation. A stack tray is provided downstream of a processing tray that stacks sheets. A position on the stacking surface of the stack tray at which the leading end of a sheet having its trailing end passing a discharging section, which discharges sheets toward the processing tray, contacts the stacking surface is lower in level than the highest portion of the processing tray. A swinging arm that discharges the sheets stacked on the processing tray to the stack tray is capable of selectively assuming a catching state in which a sheet discharged to the processing tray is caught by the swinging arm, and a non-catching state in which a sheet discharged to the processing tray is not caught by the swinging arm.Type: GrantFiled: March 4, 2004Date of Patent: November 8, 2005Assignee: Canon Kabushiki KaishaInventors: Yuzo Matsumoto, Hiromichi Tsujino, Mitsushige Murata, Takako Hanada
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Patent number: 6845228Abstract: In a sheet treating apparatus for treating sheets on which images have been formed, the sheets are upwardly transported by transport rollers, etc., and are transported to an intermediate treatment tray, where the sheets are subjected to treatment such as stapling, and then the sheets can be delivered to a delivery tray disposed in a substantially vertical state above the intermediate treatment tray.Type: GrantFiled: September 3, 2002Date of Patent: January 18, 2005Assignee: Canon Kabushiki KaishaInventors: Toshimasa Suzuki, Yoshimi Mizuta, Masaaki Inoo, Daisaku Kamiya, Hiromichi Tsujino, Junichi Moteki, Sunsuke Nishimura
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Publication number: 20040227283Abstract: A sheet processing apparatus which is capable of discharging a sheet at the optimum sheet discharging speed without stopping the conveyance of the sheet irrespective of differences in sheet conveying speed according to sheet types. A sheet discharging motor is controlled to drive a discharging roller to convey sheets in selected one of a first state in which the sheets are conveyed at speeds within a first speed range specified by a first maximum speed and a first minimum speed, and a second state in which the sheets are conveyed at speeds within a second speed range specified by a second maximum speed lower than the first maximum speed and a second minimum speed lower than the first minimum speed. The first speed range includes an overlapping range where the first speed range and the second speed range overlap.Type: ApplicationFiled: March 5, 2004Publication date: November 18, 2004Applicant: CANON KABUSHIKI KAISHAInventors: Takako Hanada, Hiromichi Tsujino, Yuzo Matsumoto, Mitsushige Murata
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Publication number: 20040230336Abstract: A sheet processing apparatus which is capable of securing a sufficient sheet bundle processing time period even with a short sheet conveying path to thereby maintain required capability of processing sheets conveyed at constant intervals. Rollers that convey sheets are controlled such that the conveyance speed of a sheet being conveyed by the rollers is increased in first timing so as to set the sheet at an increased distance from a succeeding sheet being conveyed by the rollers. When a sheet preceding the sheet being conveyed is the last sheet of a set of sheets to be processed by the sheet processing apparatus, the rollers are controlled to increase the conveyance speed of the sheet being conveyed in second timing later than the first timing.Type: ApplicationFiled: March 4, 2004Publication date: November 18, 2004Applicant: CANON KABUSHIKI KAISHAInventors: Yuzo Matsumoto, Hiromichi Tsujino, Jun-Ichi Moteki, Mitsushige Murata, Takako Hanada
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Publication number: 20040207148Abstract: When the rear end of a sheet bundle S is brought to reach the clamping portion between a rocking roller and a rear end aligning wall by conveyance means, the individual timings, at which the rocking roller and the rear end aligning wall move to the escape position, are controlled to drop said sheet bundle S onto a stack tray, and then the rear end aligning wall is moved from the escape position to the support position thereby to register the rear end of the sheet bundle S dropped on the stack tray.Type: ApplicationFiled: February 24, 2004Publication date: October 21, 2004Applicant: Canon Kabushiki KaishaInventors: Mitsushige Murata, Hiromichi Tsujino, Yuzo Matsumoto, Takako Hanada
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Publication number: 20040201165Abstract: In order to reduce the stack failure of a sheet bundle, there is provided a sheet stacking/aligning apparatus comprising: a stack tray for stacking sheets thereon; and a rear end aligning member for pushing and aligning the rear end of a sheet conveyed onto the stack tray. The rear end aligning member includes sheet holding paddle for holding the sheets stacked on the stack tray.Type: ApplicationFiled: February 25, 2004Publication date: October 14, 2004Applicant: Canon Kabushiki KaishaInventors: Daisaku Kamiya, Mitsushige Murata, Hiromichi Tsujino, Yuzo Matsumoto, Takako Hanada
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Publication number: 20040181309Abstract: A sheet stacking apparatus which is capable of reliably sandwiching or catching sheets, and also capable of providing control so as to ensure reliable conveyance of succeeding sheets during the catching operation. A stack tray is provided downstream of a processing tray that stacks sheets. A position on the stacking surface of the stack tray at which the leading end of a sheet having its trailing end passing a discharging section, which discharges sheets toward the processing tray, contacts the stacking surface is lower in level than the highest portion of the processing tray. A swinging arm that discharges the sheets stacked on the processing tray to the stack tray is capable of selectively assuming a catching state in which a sheet discharged to the processing tray is caught by the swinging arm, and a non-catching state in which a sheet discharged to the processing tray is not caught by the swinging arm.Type: ApplicationFiled: March 4, 2004Publication date: September 16, 2004Applicant: CANON KABUSHIKI KAISHAInventors: Yuzo Matsumoto, Hiromichi Tsujino, Mitsushige Murata, Takako Hanada
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Publication number: 20030067106Abstract: A sheet treating apparatus for treating a sheet having an image formed thereon is provided, which includes a pair of transport rollers for transporting the sheet upward, a sheet post-treating portion having an intermediate treatment tray, provided to execute post-treatment such as sheet stitching or punching while holding the sheet in a substantially vertical state, and a sheet delivery portion arranged above the sheet post-treating portion. Also, an image forming apparatus is provided, which includes an image reading portion for reading an image, an image forming portion arranged below the image reading portion to form an image on a sheet, a delivery space portion provided in an apparatus housing between the image reading portion and the image forming portion to deliver the sheet, sheet treating portion for treating the sheet while holding it in a substantially vertical state, and an in-body transportation path for transporting the sheet treated by the sheet treating means to the delivery space portion.Type: ApplicationFiled: September 4, 2002Publication date: April 10, 2003Applicant: Canon Kabushiki KaishaInventors: Yoshimi Mizuta, Toshimasa Suzuki, Masaaki Inoo, Daisaku Kamiya, Hiromichi Tsujino, Junichi Moteki, Shunsuke Nishimura
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Publication number: 20030049063Abstract: In a sheet treating apparatus for treating sheets on which images have been formed, the sheets are upwardly transported by transport rollers, etc., and are transported to an intermediate treatment tray, where the sheets are subjected to treatment such as stapling, and then the sheets can be delivered to a delivery tray disposed in a substantially vertical state above the intermediate treatment tray.Type: ApplicationFiled: September 3, 2002Publication date: March 13, 2003Applicant: Canon Kabushiki KaishaInventors: Toshimasa Suzuki, Yoshimi Mizuta, Masaaki Inoo, Daisaku Kamiya, Hiromichi Tsujino, Junichi Moteki, Sunsuke Nishimura
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Patent number: 6371471Abstract: A sheet processing apparatus for processing sheets from an image forming apparatus includes a first processing unit for processing a sheet, the first processing unit including a processing station for processing a sheet, a first path for transporting a sheet therethrough, and a second path for transporting a sheet to the processing station, a second processing unit for processing the sheet transported from the first processing unit, a power supply for supplying power independently to the first processing unit and the second processing unit. The first processing unit selects the first path when the first processing unit is not supplied with power by the power supply.Type: GrantFiled: July 19, 2000Date of Patent: April 16, 2002Assignee: Canon Kabushiki KaishaInventors: Yasuo Fukazu, Toshiya Kanazawa, Chikara Sato, Norifumi Miyake, Masatoshi Yaginuma, Hiromichi Tsujino, Nobuaki Miyahara
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Patent number: 5951000Abstract: A sheet post-processing apparatus includes a plurality of bin trays arranged in multiple levels with predetermined intervals; stacking device supported in said apparatus so as to be moved in an arrangement direction of the plurality of bins; discharging device for discharging a sheet; and transferring device for transferring the sheet to said stacking device from the bin tray having completed sheet reception.Type: GrantFiled: April 2, 1997Date of Patent: September 14, 1999Assignee: Canon Kabushiki KaishaInventors: Masaaki Sato, Koichi Murakami, Yoshifumi Takehara, Yoshinori Isobe, Norifumi Miyake, Kenichi Hayashi, Hiromichi Tsujino
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Patent number: 5778300Abstract: A sheet processing device which is mounted on an image forming apparatus having a both-side copy mode of forming an image on each side of a sheet member, including a bin module provided with a plurality of bins for accepting sheet members exhausted from the image forming apparatus, and a processor for taking out sheet members exhausted from the bin and processing the sheet members. When the maximum number of sheets continuously producible per unit in the both-side copy mode for the image forming apparatus is N, and the number of bins is m, the number of bins m is set to satisfy the following relational expression:m.gtoreq.N.Type: GrantFiled: September 3, 1996Date of Patent: July 7, 1998Assignee: Canon Kabushiki KaishaInventors: Koichi Murakami, Shigeru Sugita, Masaaki Sato, Yoshinori Isobe, Norifumi Miyake, Hiromichi Tsujino
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Patent number: 5444506Abstract: A projection original film feeding apparatus is provided with a feeder for feeding original film to a projecting position, a sizer for outputting size information of the original film, and a controller for varying the amount of feed the original film by the feeder to conform with the size information from the sizer and setting the original film at a regular projecting position for each size irrespective of the size.Type: GrantFiled: April 19, 1993Date of Patent: August 22, 1995Assignees: Canon Aptex Inc., Canon Kabushiki KaishaInventors: Noriaki Nakazawa, Hideaki Furukawa, Kenji Kobayashi, Hiromichi Tsujino