Patents by Inventor Yasuyoshi Hayakawa
Yasuyoshi Hayakawa 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: 8262084Abstract: The detachment of a feed roller rotatably supported by a holding portion provided in the main body of an apparatus, and held detachably in the axial direction thereof is restricted by a locking device. The locking device is made movable to a lock position and a lock releasing position for permitting the detachment of the feed roller. Further, when the locking device is in the lock releasing position when a sheet stacking portion is mounted, the locking device is moved to the lock position by a position changeover device in operative association with the mounting operation of the sheet stacking portion.Type: GrantFiled: February 24, 2011Date of Patent: September 11, 2012Assignee: Canon Kabushiki KaishaInventors: Kazushi Nishikata, Hisayuki Tomura, Akio Nemoto, Kei Sawanaka, Masato Suzuki, Yasuyoshi Hayakawa
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Publication number: 20110140355Abstract: The detachment of a feed roller rotatably supported by a holding portion provided in the main body of an apparatus, and held detachably in the axial direction thereof is restricted by a locking device. The locking device is made movable to a lock position and a lock releasing position for permitting the detachment of the feed roller. Further, when the locking device is in the lock releasing position when a sheet stacking portion is mounted, the locking device is moved to the lock position by a position changeover device in operative association with the mounting operation of the sheet stacking portion.Type: ApplicationFiled: February 24, 2011Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Kazushi Nishikata, Hisayuki Tomura, Akio Nemoto, Kei Sawanaka, Masato Suzuki, Yasuyoshi Hayakawa
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Patent number: 7913996Abstract: The detachment of a feed roller rotatably supported by a holding portion provided in the main body of an apparatus, and held detachably in the axial direction thereof is restricted by a locking device. The locking device is made movable to a lock position and a lock releasing position for permitting the detachment of the feed roller. Further, when the locking device is in the lock releasing position when a sheet stacking portion is mounted, the locking device is moved to the lock position by a position changeover device in operative association with the mounting operation of the sheet stacking portion.Type: GrantFiled: December 7, 2006Date of Patent: March 29, 2011Assignee: Canon Kabushiki KaishaInventors: Kazushi Nishikata, Hisayuki Tomura, Akio Nemoto, Kei Sawanaka, Masato Suzuki, Yasuyoshi Hayakawa
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Patent number: 7630681Abstract: A sheet processing apparatus includes a first intermediate stacking portion which stacks a conveyed sheet and which performs process to the sheet, a stapler which performs process to the sheet on the first intermediate stacking portion, a second intermediate stacking portion which is located on an upstream side in a conveying direction of the stapler and which is capable of temporarily storing the conveyed sheet, and an intermediate roller pair which conveys the sheet on the second intermediate stacking portion to the first intermediate stacking portion. The sheet stacked on the first intermediate stacking portion and the sheet temporarily stored in the second intermediate stacking portion overlap each other.Type: GrantFiled: April 22, 2008Date of Patent: December 8, 2009Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Masayoshi Fukatsu, Kenichiro Isobe, Hironobu Ata, Yasuyoshi Hayakawa
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Patent number: 7607651Abstract: The object of the present invention is to provide a sheet processing apparatus for passing sheets between an upper jaw and a lower jaw of a binder that is fixed on a intermediate stacking portion and stapling the ends of the sheet, wherein binding processing is possible for a large number of sheets and the problems of paper jams due to inclining or poor alignment are solved and which has a small size, is low in cost and is highly reliable.Type: GrantFiled: December 21, 2007Date of Patent: October 27, 2009Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Kenichiro Isobe, Yasuyoshi Hayakawa
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Patent number: 7448619Abstract: An image processing apparatus ejects the sheet to witch image processing unit perform to an ejection tray or a staple stacker by a pair of ejection rollers and the like. A sheet path for guiding the sheet to the ejection rollers is opened and closed in conjunction with slide movement of the ejection tray when the ejection tray is attached to a main body of the apparatus, and the sheet path is opened and closed in conjunction with the slide movement of a staple stacker when the staple stacker is attached to the main body of the apparatus.Type: GrantFiled: July 6, 2007Date of Patent: November 11, 2008Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Masanobu Kanoto, Yasuyoshi Hayakawa, Masao Amano, Kazuhide Kudo, Masayoshi Fukatsu
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Publication number: 20080203653Abstract: A sheet processing apparatus includes a first intermediate stacking portion which stacks a conveyed sheet and which performs process to the sheet, a stapler which performs process to the sheet on the first intermediate stacking portion, a second intermediate stacking portion which is located on an upstream side in a conveying direction of the stapler and which is capable of temporarily storing the conveyed sheet, and an intermediate roller pair which conveys the sheet on the second intermediate stacking portion to the first intermediate stacking portion. The sheet stacked on the first intermediate stacking portion and the sheet temporarily stored in the second intermediate stacking portion overlap each other.Type: ApplicationFiled: April 22, 2008Publication date: August 28, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Kuwata, Masayoshi Fukatsu, Kenichiro Isobe, Hironobu Ata, Yasuyoshi Hayakawa
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Publication number: 20080175639Abstract: The object of the present invention is to provide a sheet processing apparatus for passing sheets between an upper jaw and a lower jaw of a binder that is fixed on a intermediate stacking portion and stapling the ends of the sheet, wherein binding processing is possible for a large number of sheets and the problems of paper jams due to inclining or poor alignment are solved and which has a small size, is low in cost and is highly reliable.Type: ApplicationFiled: December 21, 2007Publication date: July 24, 2008Applicant: Canon Kabushiki KaishaInventors: Takashi Kuwata, Kenichiro Isobe, Yasuyoshi Hayakawa
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Patent number: 7386271Abstract: A sheet processing apparatus includes a first intermediate stacking portion which stacks a conveyed sheet and which performs process to the sheet, a stapler which performs process to the sheet on the first intermediate stacking portion, a second intermediate stacking portion which is located on an upstream side in a conveying direction of the stapler and which is capable of temporarily storing the conveyed sheet, and an intermediate roller pair which conveys the sheet on the second intermediate stacking portion to the first intermediate stacking portion. The sheet stacked on the first intermediate stacking portion and the sheet temporarily stored in the second intermediate stacking portion overlap each other.Type: GrantFiled: March 24, 2005Date of Patent: June 10, 2008Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Masayoshi Fukatsu, Kenichiro Isobe, Hironobu Ata, Yasuyoshi Hayakawa
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Patent number: 7341248Abstract: This invention provides a sheet processing apparatus for passing sheets between an upper jaw and a lower jaw of a binder fixed on an intermediate stacking portion and for binding the ends of the sheets, wherein binding processing is possible for a large number of sheets and the problems of paper jams due to inclining or poor alignment are solved. The apparatus has a small size, is low in cost, and is highly reliable.Type: GrantFiled: February 16, 2005Date of Patent: March 11, 2008Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Kenichiro Isobe, Yasuyoshi Hayakawa
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Publication number: 20080014000Abstract: An image processing apparatus ejects the sheet to witch image processing unit perform to an ejection tray or a staple stacker by a pair of ejection rollers and the like. A sheet path for guiding the sheet to the ejection rollers is opened and closed in conjunction with slide movement of the ejection tray when the ejection tray is attached to a main body of the apparatus, and the sheet path is opened and closed in conjunction with the slide movement of a staple stacker when the staple stacker is attached to the main body of the apparatus.Type: ApplicationFiled: July 6, 2007Publication date: January 17, 2008Applicant: CANON KABUSHIKI KAISHAInventors: TAKASHI KUWATA, Masanobu Kanoto, Yasuyoshi Hayakawa, Masao Amano, Kazuhide Kudo, Masayoshi Fukatsu
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Patent number: 7267338Abstract: An image processing apparatus ejects the sheet to witch image processing unit perform to an ejection tray or a staple stacker by a pair of ejection rollers and the like. A sheet path for guiding the sheet to the ejection rollers is opened and closed in conjunction with slide movement of the ejection tray when the ejection tray is attached to a main body of the apparatus, and the sheet path is opened and closed in conjunction with the slide movement of a staple stacker when the staple stacker is attached to the main body of the apparatus.Type: GrantFiled: June 18, 2004Date of Patent: September 11, 2007Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Masanobu Kanoto, Yasuyoshi Hayakawa, Masao Amano, Kazuhide Kudo, Masayoshi Fukatsu
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Publication number: 20070145666Abstract: The detachment of a feed roller rotatably supported by a holding portion provided in the main body of an apparatus, and held detachably in the axial direction thereof is restricted by a locking device. The locking device is made movable to a lock position and a lock releasing position for permitting the detachment of the feed roller. Further, when the locking device is in the lock releasing position when a sheet stacking portion is mounted, the locking device is moved to the lock position by a position changeover device in operative association with the mounting operation of the sheet stacking portion.Type: ApplicationFiled: December 7, 2006Publication date: June 28, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Kazushi Nishikata, Hisayuki Tomura, Akio Nemoto, Kei Sawanaka, Masato Suzuki, Yasuyoshi Hayakawa
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Patent number: 7226050Abstract: A sheet post-treating apparatus is provided with a discharged sheet stacking tray displaceably provided in a casing portion for stacking thereon sheets discharged from the casing portion, and a holding portion for holding the discharged sheet stacking tray in a first position and a second position overlying the first position, and is designed such that the sheets are stacked on the discharged sheet stacking tray when in the first position, and therefore, when the sheet post-treating apparatus is incorporated into a printer and a cartridge in the printer is to be interchanged with a cartridge cover opened, a user can retract the discharged sheet stacking tray to the second position to thereby interchange the cartridge.Type: GrantFiled: July 20, 2005Date of Patent: June 5, 2007Assignee: Canon Kabushiki KaishaInventors: Junichi Sekiyama, Yasuyoshi Hayakawa, Takashi Kuwata, Atsushi Ogata, Kenichiro Isobe, Masayoshi Fukatsu, Hironobu Ata
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Patent number: 7216863Abstract: A sheet processing apparatus, which is configured in a simple construction and at low cost, includes a first sheet stacking portion for temporarily stacking a sheet discharged thereon, an alignment member for aligning the sheet discharged on the first sheet stacking portion, a sheet processing member for performing a predetermined process on the sheet stacked on the first sheet stacking portion, and a second sheet stacking portion located substantially vertically below the first sheet stacking portion. The alignment member acts to cause the aligned sheet to drop to the second sheet stacking portion.Type: GrantFiled: April 23, 2003Date of Patent: May 15, 2007Assignee: Canon Kabushiki KaishaInventors: Takashi Kuwata, Yasuyoshi Hayakawa, Kaoru Sato
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Publication number: 20060237895Abstract: A sheet feeding apparatus including: a separating roller which abuts against a feed roller and is rotated in association with the feed roller; and a torque-limiter for allowing the separating roller to rotate in association with the feed roller when a rotation torque larger than a predetermined torque is acted on the separating roller and for preventing the separating roller from rotating in association with the feed roller when the rotation torque equal to or smaller than the predetermined torque is acted on the separating roller, in which sheets fed from a sheet feed cassette are separated one by one by the feed roller and the separating roller, the separating roller urged against the feed roller is supported by a guide member in a slidable manner, and the separating roller is guided with a predetermined angle in a direction different from a direction in which the feed roller is opposed to the separating roller.Type: ApplicationFiled: April 19, 2006Publication date: October 26, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Kazushi Nishikata, Masato Suzuki, Fumimitsu Kishimoto, Akio Nemoto, Hisayuki Tomura, Kei Sawanaka, Yasuyoshi Hayakawa
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Patent number: 7077395Abstract: A sheet after-treatment device equipped with a stapler main body which staples sheets fed between upper and lower jaws in an opened state with a staple by closing the upper and lower jaws, and a holder for holding the stapler main body, in which a sheet transport guide surface of an upstream-side portion of the holder and the lower jaw of the stapler main body are arranged in the area where the sheets are transported, and the sheet transport guide surface of the upstream-side portion of the stapler main body is situated above the lower jaw.Type: GrantFiled: May 6, 2003Date of Patent: July 18, 2006Assignee: Canon Kabushiki KaishaInventors: Hironobu Ata, Yasuyoshi Hayakawa, Takashi Kuwata, Kenichiro Isobe, Masayoshi Fukatsu
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Patent number: 7022972Abstract: An image reader includes a first image-reader unit, mounted on a body of the image reader, for reading image information of an original document on a first image-reader section, a closing unit which is openably supported on the body of the image reader through a closing device, a second image-reader unit, mounted on the closing unit, for reading image information of an original on a second image-reader section, and a closed-state detector for detecting a closed state of the closing unit. The closed-state detector includes a photoemitter, a photodetector, and a light-blocking unit which blocks a light beam traveling from the photoemitter to the photodetector, by moving in operative association with the opening and closing operation of the closing unit.Type: GrantFiled: October 10, 2002Date of Patent: April 4, 2006Assignee: Canon Kabushiki KaishaInventors: Masayoshi Fukatsu, Yasuyoshi Hayakawa, Tsuyoshi Waragai, Tomoyuki Araki
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Patent number: 6973285Abstract: A sheet post-treating apparatus is provided with a discharged sheet stacking tray displaceably provided in a casing portion for stacking thereon sheets discharged from the casing portion, and a holding portion for holding the discharged sheet stacking tray in a first position and a second position overlying the first position, and is designed such that the sheets are stacked on the discharged sheet stacking tray when in the first position, and therefore, when the sheet post-treating apparatus is incorporated into a printer and a cartridge in the printer is to be interchanged with a cartridge cover opened, a user can retract the discharged sheet stacking tray to the second position to thereby interchange the cartridge.Type: GrantFiled: March 19, 2003Date of Patent: December 6, 2005Assignee: Canon Kabushiki KaishaInventors: Junichi Sekiyama, Yasuyoshi Hayakawa, Takashi Kuwata, Atsushi Ogata, Kenichiro Isobe, Masayoshi Fukatsu, Hironobu Ata
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Publication number: 20050248085Abstract: A sheet post-treating apparatus is provided with a discharged sheet stacking tray displaceably provided in a casing portion for stacking thereon sheets discharged from the casing portion, and a holding portion for holding the discharged sheet stacking tray in a first position and a second position overlying the first position, and is designed such that the sheets are stacked on the discharged sheet stacking tray when in the first position, and therefore, when the sheet post-treating apparatus is incorporated into a printer and a cartridge in the printer is to be interchanged with a cartridge cover opened, a user can retract the discharged sheet stacking tray to the second position to thereby interchange the cartridge.Type: ApplicationFiled: July 20, 2005Publication date: November 10, 2005Applicant: Canon Kabushiki KaishaInventors: Junichi Sekiyama, Yasuyoshi Hayakawa, Takashi Kuwata, Atsushi Ogata, Kenichiro Isobe, Masayoshi Fukatsu, Hironobu Ata