Patents by Inventor Keisuke Sugiyama

Keisuke Sugiyama 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).

  • Patent number: 12158719
    Abstract: A sheet laminator includes a fuser pressure member, a conveyor, and a guide. The fuser pressure member thermally fixes a two-ply sheet and a sheet medium inserted between two sheets of the two-ply sheet. The conveyor conveys the two-ply sheet toward the fuser pressure member in a sheet conveyance direction. The guide guides the two-ply sheet in a sheet conveyance passage between the conveyor and the fuser pressure member. At least one of the fuser pressure member or the conveyor is operable to guide the two-ply sheet outside the sheet conveyance passage in response to an occurrence of an abnormal stop of the sheet laminator.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: December 3, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Takai, Keisuke Sugiyama, Yuichiro Kato, Kazuki Shimodate, Shota Yoshida, Takaya Ochiai, Yosuke Saito
  • Publication number: 20240391726
    Abstract: A medium processing apparatus includes a conveying unit, a liquid applier, and a crimper. The conveying unit conveys a medium in a conveyance direction. The liquid applier applies liquid to the medium conveyed by the conveying unit. The liquid applier includes a presser and a liquid application member. The presser presses the medium. The liquid application member contacts and is separated from the medium while the presser presses the medium. The crimper presses and deforms a plurality of media including the medium to which the liquid is applied by the liquid applier, to crimp and bind the plurality of media.
    Type: Application
    Filed: October 13, 2022
    Publication date: November 28, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuki SETO, Kei SASAKI, Keisuke SUGIYAMA
  • Publication number: 20240369957
    Abstract: A sheet laminator includes a thermal fixing roller pair, a first heater, a second heater, multiple temperature detectors, and a driver. The thermal fixing roller pair includes a first thermal fixing roller and a second thermal fixing roller facing the first thermal fixing roller. The thermal fixing roller pair thermally fixes and conveys a two-ply sheet and a sheet medium nipped between two sheets of the two-ply sheet. The first heater heats the first thermal fixing roller. The second heater heats the second thermal fixing roller. The multiple temperature detectors are at different positions along an axial direction of the thermal fixing roller pair. The multiple temperature detectors detect a surface temperature of the thermal fixing roller pair. The driver drives the thermal fixing roller pair.
    Type: Application
    Filed: July 16, 2024
    Publication date: November 7, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Shota YOSHIDA, Keisuke SUGIYAMA, Yuichiro KATO, Kazuki SHIMODATE, Takaya OCHIAI, Naoki TAKAI, Yosuke SAITO
  • Publication number: 20240327164
    Abstract: A medium processing apparatus includes a conveying unit, a liquid applier, a crimper, a liquid-applier pivot mechanism and a crimper pivot mechanism. The conveying unit conveys a medium in a conveyance direction. The liquid applier applies liquid to the medium conveyed by the conveying unit. The crimper presses and deforms a plurality of media including the medium to which the liquid is applied by the liquid applier, to bind the plurality of media. The liquid-applier pivot mechanism pivots the liquid applier about a pivot extending in a thickness direction of the medium. The crimper pivot mechanism pivots the crimper about another pivot extending in the thickness direction of the medium.
    Type: Application
    Filed: November 18, 2022
    Publication date: October 3, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kei SASAKI, Kanagawa SETO, Keisuke SUGIYAMA
  • Publication number: 20240317533
    Abstract: A medium processing apparatus includes a liquid applier, a post-processing device, a liquid storage unit, a liquid detector, and circuitry. The liquid applier applies liquid to a part of at least one medium. The post-processing device performs a given process on a bundle of media. The liquid storage unit stores the liquid. The liquid detector detects the liquid in the liquid storage unit. The circuitry is to determine whether to cause the liquid applier to apply the liquid on the at least one medium based on a detection result of the liquid detector, and set a number of times of application of the liquid to be equal to or less than a given number of times of application of the liquid when the liquid detector does not detect the liquid in the liquid storage unit.
    Type: Application
    Filed: March 13, 2024
    Publication date: September 26, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Jun SAITO, Kensuke FUKUCHI, Naoki KOBAYASHI, Yasushi TSURUOKA, Shohei SAITO, Kei SASAKI, Keisuke SUGIYAMA
  • Publication number: 20240316953
    Abstract: A medium processing apparatus includes a liquid applier, a post-processing device, a liquid storage unit, a mover, and a liquid supplier. The liquid applier applies liquid to at least one medium. The post-processing device performs a given process on a bundle of media including the at least one medium on which the liquid is applied by the liquid applier. The liquid storage unit stores the liquid to be supplied to the liquid applier. The mover causes the liquid applier to move in a reciprocating direction orthogonal to the conveyance direction. The liquid supplier supplies the liquid from the liquid storage unit to the liquid applier and includes an extensible member having an elastic cylindrical part on at least a part of the liquid supplier. The extensible member extends in the reciprocating direction of the mover.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 26, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Takashi YAMAMOTO, Keisuke SUGIYAMA, Kei SASAKI, Kazuki SETO, Shohei SAITO, Sachika TAMAKI, Kohta ABE
  • Publication number: 20240317536
    Abstract: A medium processing apparatus includes a liquid applier, a binder, a mover, first and second rotators. The first rotator rotates the binder between a first inclined posture and a first parallel posture. The second rotator rotates the liquid applier between a second inclined posture and a second parallel posture, and includes a posture change assembly and a collision avoidance assembly. The posture change assembly changes the posture of the liquid applier from the second inclined or parallel posture to the second parallel or inclined posture at a posture changing position. The collision avoidance assembly allows the binder in the first inclined posture to pass a restriction position, and restricts the binder in the first parallel posture from passing through the restriction position. The binder reaches the restriction position before the liquid applier reaches the posture changing position.
    Type: Application
    Filed: March 21, 2024
    Publication date: September 26, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kensuke FUKUCHI, Jun SAITO, Yasushi TSURUOKA, Shohei SAITO, Kei SASAKI, Keisuke SUGIYAMA
  • Publication number: 20240317537
    Abstract: A medium processing apparatus includes a liquid applier, a post-processing device, and a controller that is circuitry. The liquid applier applies liquid on at least one medium. The post-processing device performs a combination of various types of post-processes including a liquid application crimp binding and a crimp binding and a various types of bindings including a dual binding, a parallel binding, and an oblique binding, on a bundle of media including the at least one medium for a number of times. The circuitry is to change the number of times of the post-process according to the combination of the various types of the post processes and the various types of bindings, to be performed.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 26, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuyuki SUZUKI, Keisuke SUGIYAMA, Kei SASAKI, Kazuki SETO
  • Publication number: 20240317535
    Abstract: A medium processing apparatus includes the liquid applier, a first liquid storage, a second liquid storage, a liquid flow passage, a liquid leakage detector, and a liquid flow limiter. The liquid applier applies a liquid on a sheet on which a given process is to be performed. The first liquid storage stores liquid to be supplied by the liquid applier. The second liquid storage stores the liquid to be supplied to the first liquid storage. The liquid flow passage connects the first liquid storage and the second liquid storage. The liquid leakage detector detects leakage of the liquid from at least one of the first liquid storage or the second liquid storage. The liquid flow limiter limits a flow of the liquid from at least one of the first liquid storage or the second liquid storage in response to a detection of the leakage by the liquid leakage detector.
    Type: Application
    Filed: March 15, 2024
    Publication date: September 26, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasushi TSURUOKA, Kei SASAKI, Keisuke SUGIYAMA, Shohei SAITO, Jun SAITO, Kensuke FUKUCHI, Naoki KOBAYASHI
  • Publication number: 20240300772
    Abstract: A medium processing apparatus includes a liquid applier and a post-processing device. The liquid applier includes a liquid application member including a foam containable a liquid to apply the liquid to a liquid application region in a part of at least one medium of a bundle of media. The post-processing device performs a given process on a post-processing region in the part of at least one medium having the liquid application region on which the liquid is applied by the liquid applier. The liquid applier applies the liquid to the liquid application region overlapped with at least a part of the post-processing region.
    Type: Application
    Filed: February 22, 2024
    Publication date: September 12, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kohta ABE, Kei SASAKI, Keisuke SUGIYAMA, Kazuki SETO, Shohei SAITO, Sachika TAMAKI, Takashi YAMAMOTO
  • Patent number: 12072658
    Abstract: A sheet laminator includes a thermal fixing roller pair, a first heater, a second heater, multiple temperature detectors, and a driver. The thermal fixing roller pair includes a first thermal fixing roller and a second thermal fixing roller facing the first thermal fixing roller. The thermal fixing roller pair thermally fixes and conveys a two-ply sheet and a sheet medium nipped between two sheets of the two-ply sheet. The first heater heats the first thermal fixing roller. The second heater heats the second thermal fixing roller. The multiple temperature detectors are at different positions along an axial direction of the thermal fixing roller pair. The multiple temperature detectors detect a surface temperature of the thermal fixing roller pair. The driver drives the thermal fixing roller pair.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: August 27, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shota Yoshida, Keisuke Sugiyama, Yuichiro Kato, Kazuki Shimodate, Takaya Ochiai, Naoki Takai, Yosuke Saito
  • Patent number: 11926133
    Abstract: A sheet laminator includes a sheet lamination device, a heater, and circuitry. The sheet lamination device performs a sheet laminating operation on an object by application of heat and pressure. The heater heats the sheet lamination device. The circuitry changes between a first mode in which the heater constantly heats the sheet lamination device while the sheet lamination device is turned on and a second mode in which the heater starts heating the sheet lamination device in response to a request of the sheet laminating operation and stops heating the sheet lamination device after a given time has elapsed from completion of the sheet laminating operation. The circuitry adjusts the given time in the second mode.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: March 12, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinya Monma, Keisuke Sugiyama, Tomohiro Furuhashi, Wataru Takahashi, Ruki Midorikawa, Sho Asano
  • Patent number: 11886143
    Abstract: A sheet laminator laminates a two-ply sheet and a sheet-shaped medium inserted in the two-ply sheet. The sheet laminator includes a sheet feeder, a multi-feeding detector, a fixing device, an ejection device, a purging portion, a passage switcher, and circuitry. The sheet feeder feeds the two-ply sheet. The multi-feeding detector detects multiple feeding of the two-ply sheet. The fixing device fixes the two-ply sheet by application of heat and pressure. The ejection device ejects the two-ply sheet that has been fixed by the fixing device. The purging portion is disposed at a position different from the ejection device. The passage switcher switches a conveyance passage of the two-ply sheet to the fixing device or to the purging portion. The circuitry conveys the two-ply sheet to the purging portion and retries sheet feeding with another two-ply sheet, in response to detection of multiple feeding of the two-ply sheet.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: January 30, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Sugiyama, Tomohiro Furuhashi, Wataru Takahashi, Ruki Midorikawa, Shinya Monma, Sho Asano
  • Publication number: 20230408956
    Abstract: A thermal fixer includes a first thermal fixing roller and a second thermal fixing roller. The first thermal fixing roller includes a first heater. The second thermal fixing roller is pressed to the first thermal fixing roller. The second thermal fixing roller includes a second heater and has a diameter, a rigidity, and a surface releasability substantially identical to the first thermal fixing roller.
    Type: Application
    Filed: June 20, 2023
    Publication date: December 21, 2023
    Inventors: Yuichiro KATO, Kazuki SHIMODATE, Shota YOSHIDA, Takaya OCHIAI, Naoki TAKAI, Yosuke SAITO, Keisuke SUGIYAMA
  • Publication number: 20230408961
    Abstract: A sheet laminator includes a thermal fixing roller pair, a first heater, a second heater, multiple temperature detectors, and a driver. The thermal fixing roller pair includes a first thermal fixing roller and a second thermal fixing roller facing the first thermal fixing roller. The thermal fixing roller pair thermally fixes and conveys a two-ply sheet and a sheet medium nipped between two sheets of the two-ply sheet. The first heater heats the first thermal fixing roller. The second heater heats the second thermal fixing roller. The multiple temperature detectors are at different positions along an axial direction of the thermal fixing roller pair. The multiple temperature detectors detect a surface temperature of the thermal fixing roller pair. The driver drives the thermal fixing roller pair.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 21, 2023
    Inventors: Shota YOSHIDA, Keisuke SUGIYAMA, Yuichiro KATO, Kazuki SHIMODATE, Takaya OCHIAI, Naoki TAKAI, Yosuke SAITO
  • Publication number: 20230400806
    Abstract: A sheet laminator includes a fuser pressure member, a conveyor, and a guide. The fuser pressure member thermally fixes a two-ply sheet and a sheet medium inserted between two sheets of the two-ply sheet. The conveyor conveys the two-ply sheet toward the fuser pressure member in a sheet conveyance direction. The guide guides the two-ply sheet in a sheet conveyance passage between the conveyor and the fuser pressure member. At least one of the fuser pressure member or the conveyor is operable to guide the two-ply sheet outside the sheet conveyance passage in response to an occurrence of an abnormal stop of the sheet laminator.
    Type: Application
    Filed: June 7, 2023
    Publication date: December 14, 2023
    Inventors: Naoki TAKAI, Keisuke SUGIYAMA, Yuichiro KATO, Kazuki SHIMODATE, Shota YOSHIDA, Takaya OCHIAI, Yosuke SAITO
  • Publication number: 20230398775
    Abstract: A sheet laminator includes a fuser pressure member, a heater, a drive device, and circuitry. The fuser pressure member thermally fixes a two-ply sheet and a sheet medium inserted between two sheets of the two-ply sheet. The heater heats the fuser pressure member. The driver rotates the fuser pressure member. In response to a pause of a rotation of the fuser pressure member, the circuitry turns off a power supply to the heater, and perform one of immediately stopping the fuser pressure member or rotating the fuser pressure member and stopping the fuser pressure member after the rotation of the fuser pressure member, based on a state of the fuser pressure member.
    Type: Application
    Filed: June 7, 2023
    Publication date: December 14, 2023
    Inventors: Kazuki SHIMODATE, Keisuke SUGIYAMA, Yuichiro KATO, Shota YOSHIDA, Takaya OCHIAI, Naoki TAKAI, Yosuke SAITO
  • Publication number: 20230221672
    Abstract: A sheet laminator laminates a two-ply sheet and a sheet-shaped medium inserted in the two-ply sheet. The sheet laminator includes a sheet feeder, a multi-feeding detector, a fixing device, an ejection device, a purging portion, a passage switcher, and circuitry. The sheet feeder feeds the two-ply sheet. The multi-feeding detector detects multiple feeding of the two-ply sheet. The fixing device fixes the two-ply sheet by application of heat and pressure. The ejection device ejects the two-ply sheet that has been fixed by the fixing device. The purging portion is disposed at a position different from the ejection device. The passage switcher switches a conveyance passage of the two-ply sheet to the fixing device or to the purging portion. The circuitry conveys the two-ply sheet to the purging portion and retries sheet feeding with another two-ply sheet, in response to detection of multiple feeding of the two-ply sheet.
    Type: Application
    Filed: December 2, 2022
    Publication date: July 13, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Keisuke SUGIYAMA, Tomohiro FURUHASHI, Wataru TAKAHASHI, Ruki MIDORIKAWA, Shinya MONMA, Sho ASANO
  • Publication number: 20230202780
    Abstract: A sheet separation device includes a sheet separator and a conveyor. The sheet separator separates a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet. The conveyor conveys the two-ply sheet toward the sheet separator while bending the two-ply sheet in a direction that intersects a conveyance direction of the two-ply sheet.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 29, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Wataru TAKAHASHI, Tomohiro FURUHASHI, Keisuke SUGIYAMA, Ruki MIDORIKAWA, Shinya MONMA, Sho ASANO
  • Publication number: 20230202790
    Abstract: A sheet stacker for use in a device including a stacker portion, a fence, and a guide face. The stacker portion includes a stacker face that is inclined at a predetermined angle with respect to a horizontal plane and receives a plurality of sheets ejected from above and stack the plurality of sheets on the stacker face. The fence includes an angled face to contact an end of the plurality of sheets stacked on the stacker face. The angled face rises in a direction in which the plurality of sheets is stacked, with respect to a lower side of the stacker face. The guide face guides the sheet conveyed along the lower side toward an outlet port to a lower end of the outlet port, the outlet port opening in an exterior of the device to remove the sheet to an outside of the device.
    Type: Application
    Filed: October 27, 2022
    Publication date: June 29, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Sho ASANO, Keisuke SUGIYAMA, Tomohiro FURUHASHI, Wataru TAKAHASHI, Ruki MIDORIKAWA, Shinya MONMA