Patents by Inventor Akihiro Musha
Akihiro Musha 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: 9624061Abstract: A sheet processing device includes a sheet processing unit that is moved to perform sheet processing on a sheet; a sheet-processing moving unit that moves the sheet processing unit; a drive-mode determining unit that determines a drive mode of the sheet-processing moving unit; and a drive control unit that drives the sheet-processing moving unit in accordance with the drive mode. The drive-mode determining unit determines the drive mode such that the sheet processing unit is moved at combination acceleration that is a combination of first acceleration and second acceleration with a shift of time that is determined based on the cycle of the natural vibration that occurs during acceleration of the sheet processing unit.Type: GrantFiled: February 1, 2016Date of Patent: April 18, 2017Assignee: Ricoh Company, LimitedInventors: Shingo Matsushita, Keisuke Sugiyama, Kiyoshi Hata, Takashi Saito, Akihiro Musha, Ikuhisa Okamoto, Takehisa Shimazu, Takeshi Akai, Kyosuke Nakada, Jun Yamada, Joh Ebara, Takaya Ochiai, Takuya Sano, Masatada Satoh
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Patent number: 9415560Abstract: A sheet processing apparatus includes: a sheet fastening unit of a pressing fastener method in which a bundle of sheets is fastened by using a pair of pressing fastener members; a conveying unit that conveys the bundle of sheets that are fastened by the sheet fastening unit; a separating unit that, after the sheet fastening unit performs a fastening operation on the bundle of sheets, moves both one and the other pressing fastener members, between which the bundle of sheets is interposed, so as to separate a sheet that adheres to the pressing fastener member; and a control unit that, after the separating unit finishes an operation to separate the sheet, controls the conveying unit so as to convey the bundle of sheets that are fastened by the sheet fastening unit.Type: GrantFiled: June 12, 2014Date of Patent: August 16, 2016Assignee: RICOH COMPANY, LTD.Inventors: Takuya Morinaga, Nobuyoshi Suzuki, Katsuhiro Kosuge, Yuusuke Shibasaki, Ryuji Yoshida, Wataru Takahashi, Takashi Saito, Akihiro Musha, Ikuhisa Okamoto, Shingo Matsushita
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Publication number: 20160221787Abstract: A sheet processing device includes a sheet processing unit that is moved to perform sheet processing on a sheet; a sheet-processing moving unit that moves the sheet processing unit; a drive-mode determining unit that determines a drive mode of the sheet-processing moving unit; and a drive control unit that drives the sheet-processing moving unit in accordance with the drive mode. The drive-mode determining unit determines the drive mode such that the sheet processing unit is moved at combination acceleration that is a combination of first acceleration and second acceleration with a shift of time that is determined based on the cycle of the natural vibration that occurs during acceleration of the sheet processing unit.Type: ApplicationFiled: February 1, 2016Publication date: August 4, 2016Applicant: Ricoh Company, LimitedInventors: Shingo MATSUSHITA, Keisuke SUGIYAMA, Kiyoshi HATA, Takashi SAITO, Akihiro MUSHA, Ikuhisa OKAMOTO, Takehisa SHIMAZU, Takeshi AKAI, Kyosuke NAKADA, Jun YAMADA, Joh EBARA, Takaya OCHIAI, Takuya SANO, Masatada SATOH
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Patent number: 9359167Abstract: A sheet processing device comprising: a pressing unit that presses a fold line part of a folded sheet bundle; and a moving unit that moves a pressing position of the pressing unit in a fold direction of the folded sheet bundle, wherein the pressing unit includes a pair of pressing rollers that holds the folded sheet bundle therebetween, and the pair of pressing rollers changes an angle ? between a thickness direction of the folded sheet bundle and a line connecting the rotational centers of the pressing rollers in the middle of movement.Type: GrantFiled: August 26, 2014Date of Patent: June 7, 2016Assignee: RICOH COMPANY, LTD.Inventors: Akihiro Musha, Keisuke Sugiyama, Kiyoshi Hata, Takeshi Akai, Ikuhisa Okamoto, Jun Yamada, Takao Watanabe
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Patent number: 9315356Abstract: According to an aspect of an embodiment, a sheet processing apparatus includes: a conveying unit configured to convey sheets; a stacking unit configured to stack the conveyed sheets to form a sheet stack; and a binding unit configured to include a pair of toothed jaw and bind the sheet stack by pressing the sheet stack between the pair of toothed jaw, wherein at least one portion of edges of the toothed jaw is rounded.Type: GrantFiled: November 6, 2013Date of Patent: April 19, 2016Assignee: Ricoh Company, Ltd.Inventors: Ryuji Yoshida, Nobuyoshi Suzuki, Shingo Matsushita, Katsuhiro Kosuge, Yuusuke Shibasaki, Wataru Takahashi, Takashi Saito, Akihiro Musha, Takuya Morinaga, Ikuhisa Okamoto, Nagayasu Yoshida, Hirotaka Hayashi
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Patent number: 9254621Abstract: The present invention is concerning a method for attaching a pair of crimping members in a sheet binding device that binds a sheet bundle by engagement of the pair of crimping members, wherein at least one of the crimping members is attached to a member to which the one of the crimping members is to be attached in a state where the pair of crimping members is in engagement.Type: GrantFiled: July 15, 2014Date of Patent: February 9, 2016Assignee: RICOH COMPANY, LIMITEDInventors: Wataru Takahashi, Nobuyoshi Suzuki, Shingo Matsushita, Katsuhiro Kosuge, Yuusuke Shibasaki, Ryuji Yoshida, Takashi Saito, Akihiro Musha, Takuya Morinaga, Ikuhisa Okamoto
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Patent number: 9221648Abstract: The present invention is concerning a sheet processing device comprising: a pressing unit that includes a first pressing roller arranged on one side of a thickness direction of a folded sheet bundle, and a second pressing roller and a third pressing roller arranged on the other side across a fold line part of the folded sheet bundle, and a moving unit that moves the pressing unit in a state in which each of a first line and a second line is not parallel to the thickness direction of the folded sheet bundle, the first line connecting the rotational center of the first pressing roller and the rotational center of the second pressing roller, and the second line connecting the rotational center of the first pressing roller and the rotational center of the third pressing roller.Type: GrantFiled: August 1, 2014Date of Patent: December 29, 2015Assignee: RICOH COMPANY, LIMITEDInventors: Keisuke Sugiyama, Kiyoshi Hata, Takeshi Akai, Ikuhisa Okamoto, Jun Yamada, Takao Watanabe, Akihiro Musha
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Patent number: 9102492Abstract: A sheet processing apparatus includes a conveyance unit to transport a sheet bundle including multiple sheets in a sheet conveyance direction and a binding device including a clamping unit. The clamping unit includes multiple projections and multiple recesses to engage the respective projections to clamp the sheet bundle inserted therebetween. At least one of the multiple projections includes an inclined portion facing a sheet conveyance direction, and an inclination of the inclined portion is 45 degrees or smaller relative to a face parallel to the sheet conveyance direction.Type: GrantFiled: April 15, 2013Date of Patent: August 11, 2015Assignee: RICOH COMPANY, LTD.Inventors: Takashi Saito, Katsuhiro Kosuge, Shingo Matsushita, Yuusuke Shibasaki, Satoshi Saito, Makoto Hidaka, Akihiro Musha, Takuya Morinaga, Ikuhisa Okamoto, Shohichi Satoh, Nobuyoshi Suzuki
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Patent number: 9096091Abstract: A postprocessing apparatus includes a stacking unit that stacks a sheet, an abutting unit that corrects a conveying direction of the sheet, a return roller that abuts the sheet against the abutting unit, a shift conveying unit that shifts the sheet in a width direction, and a width direction detector that detects a width direction position of the sheet. When the sheet is shifted by the shift conveying unit by a predetermined amount, passed to the return roller, and abutted against the abutting unit, distances A and B are nearly the same, where the distance A is a distance from a conveying direction position of a side of the sheet to a rear end of the sheet and the distance B is a distance from the return roller to the abutting unit.Type: GrantFiled: November 27, 2013Date of Patent: August 4, 2015Assignee: Ricoh Company, LimitedInventors: Yuusuke Shibasaki, Nobuyoshi Suzuki, Katsuhiro Kosuge, Takashi Saito, Shingo Matsushita, Akihiro Musha, Ikuhisa Okamoto, Wataru Takahashi, Takuya Morinaga, Ryuji Yoshida
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Patent number: 9090051Abstract: A sheet binding device binds a sheet bundle by causing a movable-crimping-member moving unit to move a movable crimping member thereby holding a sheet bundle between crimping members. The movable-crimping-member moving unit includes: a link mechanism that includes a first link member rotatably connected to the movable crimping member, a second link member rotatably connected to a fixed member fixed to a device body and connected to the first link member through a connecting part; a connecting member rotatably connected to the connecting part, and capable of moving between a first position causing the link mechanism to be extended and a second position causing the link mechanism to be more flexed than in the first position; and a connecting-member moving unit that includes a rotary member capable of rotating on a displaceable rotating shaft, and reciprocates the connecting member by rotation of the rotary member in one direction.Type: GrantFiled: January 23, 2014Date of Patent: July 28, 2015Assignee: RICOH COMPANY, LIMITEDInventors: Wataru Takahashi, Nobuyoshi Suzuki, Yuusuke Shibasaki, Ryuji Yoshida, Takashi Saito, Akihiro Musha, Katsuhiro Kosuge, Shingo Matsushita, Takuya Morinaga, Ikuhisa Okamoto
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Patent number: 9010753Abstract: A sheet processing apparatus including a stacking tray that stacks sheets, a conveying member that conveys a sheet to the stacking tray and discharges the sheet bundle from the stacking tray, wherein the conveying member includes a conveying roller and a conveying belt stretched by a plurality of stretch rollers, and a sheet processor that performs predetermined processing to the sheet bundle. When the conveying member conveys the sheet to the stacking tray, a part of the conveying belt that is not wound on the stretch roller contacts the conveying roller by moving the conveying belt as such a nip for conveying the sheet is formed. When the conveying member discharges the sheet bundle from the stacking tray, a part of the conveying belt that is wound on the stretch roller contacts the conveying roller by moving the conveying belt so that a nip for conveying the sheet is formed.Type: GrantFiled: May 15, 2014Date of Patent: April 21, 2015Assignee: Ricoh Company, Ltd.Inventors: Yuusuke Shibasaki, Nobuyoshi Suzuki, Shingo Matsushita, Katsuhiro Kosuge, Ryuji Yoshida, Wataru Takahashi, Takashi Saito, Akihiro Musha, Takuya Morinaga, Ikuhisa Okamoto
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Patent number: 8991808Abstract: A sheet processing apparatus includes a pair of squeezing members having a projection and a recess to engage each other, to squeeze a sheet bundle inserted therebetween in a direction of thickness of the sheet bundle, and a pressure applying unit to apply pressing force to the squeezing members to squeeze and bind the sheet bundle. The pressing force generated between the squeezing members by the pressure applying unit increases in strength as a relative distance between the squeezing members decreases.Type: GrantFiled: April 26, 2013Date of Patent: March 31, 2015Assignee: Ricoh Company, Ltd.Inventors: Nobuyoshi Suzuki, Yuusuke Shibasaki, Shingo Matsushita, Takuya Morinaga, Makoto Hidaka, Takashi Saito, Satoshi Saito, Akihiro Musha, Shohichi Satoh, Ikuhisa Okamoto, Katsuhiro Kosuge
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Publication number: 20150076759Abstract: A sheet binding device includes: a pair of crimping members each including alternately-arranged multiple recesses and multiple protrusions to bind a sheaf of sheets by fitting the recesses and the protrusions with the sheet sheaf interposed therebetween. When the recesses and the protrusions of the pair of crimping members are fitted, slanted side faces of the protrusions of one of the pair of crimping members and that of the other one of the pair of crimping members are in contact with each other with a clearance left both between top portions of the protrusions of the one of the crimping members and bottom portions of the recesses of the other one of the crimping members and between top portions of the protrusions of the other one of the crimping members and bottom portions of the recesses of the one of the crimping members.Type: ApplicationFiled: August 25, 2014Publication date: March 19, 2015Applicant: Ricoh Company, Ltd.Inventors: Katsuhiro Kosuge, Nobuyoshi Suzuki, Shingo Matsushita, Wataru Takahashi, Yuusuke Shibasaki, Ryuji Yoshida, Takashi Saito, Akihiro Musha, Takuya Morinaga, Ikuhisa Okamoto
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Patent number: 8974360Abstract: A creasing device forms a crease in a to-be-folded portion of a sheet. The creasing device includes a sheet-information reading unit that reads any one of sheet information and binding information; a determining unit that determines a surface, on which the crease is to be formed, of the sheet according to the one of the sheet information and the binding information read by the sheet-information reading unit; and a creasing unit that forms the crease on the surface determined by the determining unit.Type: GrantFiled: July 1, 2011Date of Patent: March 10, 2015Assignee: Ricoh Company, LimitedInventor: Akihiro Musha
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Publication number: 20150065326Abstract: A sheet processing device comprising: a pressing unit that presses a fold line part of a folded sheet bundle; and a moving unit that moves a pressing position of the pressing unit in a fold direction of the folded sheet bundle, wherein the pressing unit includes a pair of pressing rollers that holds the folded sheet bundle therebetween, and the pair of pressing rollers changes an angle ? between a thickness direction of the folded sheet bundle and a line connecting the rotational centers of the pressing rollers in the middle of movement.Type: ApplicationFiled: August 26, 2014Publication date: March 5, 2015Inventors: Akihiro MUSHA, Keisuke SUGIYAMA, Kiyoshi HATA, Takeshi AKAI, Ikuhisa OKAMOTO, Jun YAMADA, Takao WATANABE
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Publication number: 20150045197Abstract: The present invention is concerning a sheet processing device comprising: a pressing unit that includes a first pressing roller arranged on one side of a thickness direction of a folded sheet bundle, and a second pressing roller and a third pressing roller arranged on the other side across a fold line part of the folded sheet bundle, and a moving unit that moves the pressing unit in a state in which each of a first line and a second line is not parallel to the thickness direction of the folded sheet bundle, the first line connecting the rotational center of the first pressing roller and the rotational center of the second pressing roller, and the second line connecting the rotational center of the first pressing roller and the rotational center of the third pressing roller.Type: ApplicationFiled: August 1, 2014Publication date: February 12, 2015Inventors: Keisuke SUGIYAMA, Kiyoshi HATA, Takeshi AKAI, Ikuhisa OKAMOTO, Jun YAMADA, Takao WATANABE, Akihiro MUSHA
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Publication number: 20150028540Abstract: A sheet processing apparatus including a stacking tray that stacks sheets, a conveying member that conveys a sheet to the stacking tray and discharges the sheet bundle from the stacking tray, wherein the conveying member includes a conveying roller and a conveying belt stretched by a plurality of stretch rollers, and a sheet processor that performs predetermined processing to the sheet bundle. When the conveying member conveys the sheet to the stacking tray, a part of the conveying belt that is not wound on the stretch roller contacts the conveying roller by moving the conveying belt as such a nip for conveying the sheet is formed. When the conveying member discharges the sheet bundle from the stacking tray, a part of the conveying belt that is wound on the stretch roller contacts the conveying roller by moving the conveying belt so that a nip for conveying the sheet is formed.Type: ApplicationFiled: May 15, 2014Publication date: January 29, 2015Inventors: Yuusuke SHIBASAKI, Nobuyoshi Suzuki, Shingo Matsushita, Katsuhiro Kosuge, Ryuji Yoshida, Wataru Takahashi, Takashi Saito, Akihiro Musha, Takuya Morinaga, Ikuhisa Okamoto
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Publication number: 20150030414Abstract: The present invention is concerning a method for attaching a pair of crimping members in a sheet binding device that binds a sheet bundle by engagement of the pair of crimping members, wherein at least one of the crimping members is attached to a member to which the one of the crimping members is to be attached in a state where the pair of crimping members is in engagement.Type: ApplicationFiled: July 15, 2014Publication date: January 29, 2015Applicant: RICOH COMPANY, LIMITEDInventors: Wataru TAKAHASHI, Nobuyoshi SUZUKI, Shingo MATSUSHITA, Katsuhiro KOSUGE, Yuusuke SHIBASAKI, Ryuji YOSHIDA, Takashi SAITO, Akihiro MUSHA, Takuya MORINAGA, Ikuhisa OKAMOTO
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Publication number: 20150003938Abstract: A sheet processing apparatus includes: a sheet fastening unit of a pressing fastener method in which a bundle of sheets is fastened by using a pair of pressing fastener members; a conveying unit that conveys the bundle of sheets that are fastened by the sheet fastening unit; a separating unit that, after the sheet fastening unit performs a fastening operation on the bundle of sheets, moves both one and the other pressing fastener members, between which the bundle of sheets is interposed, so as to separate a sheet that adheres to the pressing fastener member; and a control unit that, after the separating unit finishes an operation to separate the sheet, controls the conveying unit so as to convey the bundle of sheets that are fastened by the sheet fastening unit.Type: ApplicationFiled: June 12, 2014Publication date: January 1, 2015Applicant: RICOH COMPANY, LIMITEDInventors: Takuya MORINAGA, Nobuyoshi SUZUKI, Katsuhiro KOSUGE, Yuusuke SHIBASAKI, Ryuji YOSHIDA, Wataru TAKAHASHI, Takashi SAITO, Akihiro MUSHA, Ikuhisa OKAMOTO, Shingo MATSUSHITA
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Patent number: 8905395Abstract: A sheet processing apparatus performs predetermined processing on a sheet or a sheet bundle. The sheet processing apparatus includes: a conveying unit that conveys a sheet along a conveying path; an aligning unit that, each time a sheet is conveyed by the conveying unit, aligns the sheet; a stacking unit that reverses a conveying direction of a sheet to convey the sheet backward to a branch path branched from the conveying path, and stacks the sheet in the branch path; and a binding unit that binds a sheet bundle aligned by the aligning unit, in the conveying path.Type: GrantFiled: December 19, 2012Date of Patent: December 9, 2014Assignee: Ricoh Company, LimitedInventors: Nobuyoshi Suzuki, Shingo Matsushita, Takashi Saito, Satoshi Saito, Makoto Hidaka, Katsuhiro Kosuge, Akihiro Musha, Shohichi Satoh, Ikuhisa Okamoto