Patents by Inventor Tomohiro Furuhashi

Tomohiro Furuhashi 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: 10807825
    Abstract: A sheet processing apparatus includes a blade having a plurality of teeth aligned in a row, a mover to move in a direction in which the plurality of teeth is aligned and form a perforation in a sheet sandwiched by the blade and the mover, and a pressure device to press the mover toward the blade.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: October 20, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomomichi Hoshino, Shinji Asami, Tomohiro Furuhashi, Michitaka Suzuki, Fumiharu Yoneyama, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20200270093
    Abstract: A sheet processing device includes a conveying unit, a presser, an end detector, and a setting unit. The conveying unit conveys a sheet having a crease formed therein. The presser presses the crease in the sheet. The end detector detects an end in a conveying direction of the sheet at a position upstream of the presser in the conveying direction. The setting unit sets a crease position where the crease is to be formed. Upon detection of the end in the conveying direction, the conveying unit conveys the sheet to a position where the crease faces the presser, on the basis of the crease position set by the setting unit. The presser presses the crease in the conveyed sheet.
    Type: Application
    Filed: May 12, 2020
    Publication date: August 27, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Michitaka SUZUKI, Tomohiro FURUHASHI, Tomomichi HOSHINO, Satoshi SAITO, Takahiro WATANABE, Takao WATANABE, Yuji SUZUKI
  • Patent number: 10751459
    Abstract: A blood purification apparatus employing a single-needle double-pump method and being capable of automatically discharging a priming solution that has undergone substitution from a blood circuit during blood removal. A blood purification apparatus includes a blood circuit to which an only puncture needle is connectable, a dialyzer that purifies blood flowing in the blood circuit, a first blood pump, a second blood pump, and a control device that allows the blood of a patient to be extracorporeally circulated through the blood circuit by causing the first blood pump and the second blood pump to alternately undergo normal rotation. During blood removal, the control device operates to substitute a priming solution in the blood circuit with the blood of the patient and to discharge the priming solution having undergone the substitution from the blood circuit by causing the first blood pump to undergo normal rotation and the second blood pump to undergo reverse rotation.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: August 25, 2020
    Assignee: Nikkiso Company Limited
    Inventors: Shinya Hasegawa, Tomohiro Furuhashi, Satoshi Takeuchi
  • Patent number: 10745236
    Abstract: A sheet processing apparatus includes conveyers to convey a sheet. The conveyers include a registration conveyer which a plurality of sheets is to sequentially contact and is configured to bend a preceding sheet contacting the registration conveyer toward a direction in which the preceding sheet does not obstruct an entry of a following sheet to the registration conveyer when the conveyers overlay and convey the plurality of sheets after the plurality of sheets sequentially contacts the registration conveyer.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: August 18, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Michitaka Suzuki, Shinji Asami, Tomohiro Furuhashi, Tomomichi Hoshino, Fumiharu Yoneyama, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20200247107
    Abstract: A sheet separation device separates a two-ply sheet in which two sheets are bonded together at a portion. The sheet separation device includes a rotator, a nipping member opposite the rotator, to nip the two-ply sheet with the rotator, a conveyor to convey the two-ply sheet between the rotator and the nipping member, a winding member adjacent to the rotator, to wind the two-ply sheet around the rotator, and control circuitry. In winding the two-ply sheet, the control circuitry rotates the rotator at a first speed faster than a second speed at which the two-ply sheet moves to the rotator via the conveyor, and creates a difference in winding circumferential length between the two sheets, thereby separating the two sheets. The conveyor conveys the two-ply sheet with a bonded portion of the two-ply sheet being an upstream end or a downstream end in a conveyance direction of the two-ply sheet.
    Type: Application
    Filed: January 17, 2020
    Publication date: August 6, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Takuya MORINAGA, Tomohiro FURUHASHI, Michitaka SUZUKI, Fumiharu YONEYAMA, Tomomichi HOSHINO, Wataru TAKAHASHI, Koki SAKANO, Akira KUNIEDA, Yohsuke HARAGUCHI, Makoto HIDAKA, Kazuyoshi MATSUO, Takahiro WATANABE
  • Publication number: 20200247636
    Abstract: A sheet separation device to open a two-ply sheet includes a rotator; a nipping member disposed opposite the rotator and configured to nip the two-ply sheet with the rotator; a conveyor configured to convey the two-ply sheet between the rotator and the nipping member, and a winding member disposed adjacent to the rotator. The conveyor conveys the two-ply sheet with a bonded portion of the two-ply sheet being an upstream end or a downstream end of the two-ply sheet in a conveyance direction of the two-ply sheet. The winding member winds the two-ply sheet around the rotator, to create a difference in winding circumferential length between the two sheets and separate the two sheets.
    Type: Application
    Filed: January 20, 2020
    Publication date: August 6, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomohiro FURUHASHI, Akihiro Iwasaki, Michitaka Suzuki, Fumiharu Yoneyama, Tomomichi Hoshino, Wataru Takahashi, Takuya Morinaga, Koki Sakano, Akira Kunieda, Yohsuke Haraguchi, Makoto Hidaka
  • Publication number: 20200239265
    Abstract: A sheet folding system includes a plurality of sheet folding apparatuses configured to receive and perform a folding process on a sheet and circuitry configured to distribute sheets to the plurality of sheet folding apparatuses. Each of the plurality of sheet folding apparatuses includes a folding device configured to fold the sheet, a first conveyance passage configured to convey the sheet downstream in a sheet conveyance direction without passing through the folding device, a second conveyance passage configured to convey the sheet to the folding device, a third conveyance passage configured to convey the sheet from the folding device downstream in the sheet conveyance direction, and a junction between the first conveyance passage and the third conveyance passage. The circuitry controls sheet conveyance to prevent an interference, at the junction, between the sheet conveyed from the first conveyance passage and the sheet conveyed from the third conveyance passage.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Michitaka SUZUKI, Tomohiro FURUHASHI, Tomomichi HOSHINO, Fumiharu YONEYAMA, Makoto HIDAKA, Koki SAKANO, Akira KUNIEDA, Takahiro WATANABE, Takuya MORINAGA, Yohsuke HARAGUCHI
  • Patent number: 10723581
    Abstract: A sheet processing apparatus includes a first conveyer to convey a sheet, a first folding device to fold the sheet and put a crease in the sheet, a second conveyer to convey the sheet folded by the first folding device, a second folding device to fold the sheet and put a crease in the sheet, and a guide. The first conveyer and the second conveyer are rotatable in reverse. The guide guides the sheet conveyed downstream from the first conveyer and the sheet conveyed downstream from the second conveyer.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 28, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinji Asami, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Fumiharu Yoneyama, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Patent number: 10717625
    Abstract: A sheet processing device includes a conveying unit, a presser, an end detector, and a setting unit. The conveying unit conveys a sheet having a crease formed therein. The presser presses the crease in the sheet. The end detector detects an end in a conveying direction of the sheet at a position upstream of the presser in the conveying direction. The setting unit sets a crease position where the crease is to be formed. Upon detection of the end in the conveying direction, the conveying unit conveys the sheet to a position where the crease faces the presser, on the basis of the crease position set by the setting unit. The presser presses the crease in the conveyed sheet.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: July 21, 2020
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Michitaka Suzuki, Tomohiro Furuhashi, Tomomichi Hoshino, Satoshi Saito, Takahiro Watanabe, Takao Watanabe, Yuji Suzuki
  • Patent number: 10710834
    Abstract: A folding apparatus includes a folding device to fold a sheet bundle, an additional folding device, a conveyer, and control circuitry. The additional folding device includes a pressure roller disposed downstream from the folding device in a sheet conveyance direction and configured to press the sheet bundle after the folding device folds the sheet bundle and a sheet support member disposed opposite the pressure roller via the sheet bundle. The conveyer conveys the sheet bundle to a position at which the additional folding device presses the sheet bundle and hold the sheet bundle at the position. The control circuitry causes the additional folding device to perform additional folding processing on a first position of the sheet bundle, the conveyer to move the sheet bundle to a second position different from the first position, and the additional folding device to perform the additional folding processing at the second position again.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 14, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Hidaka, Shinji Asami, Tomohiro Furuhashi, Takuya Morinaga, Tomomichi Hoshino, Yohsuke Haraguchi, Koki Sakano, Michitaka Suzuki, Akira Kunieda, Fumiharu Yoneyama
  • Patent number: 10689222
    Abstract: A sheet processing apparatus includes a rotatable pressing member, a guide, and a contact member. The rotatable pressing member includes a pressing portion that is disposed in a predetermined range in a rotation direction of the pressing member to press a folded portion of a sheet. The guide is disposed opposite the pressing member. The contact member contacts the guide and is rotatably disposed at at least one end of the pressing member in an axial direction of the pressing member.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: June 23, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Fumiharu Yoneyama, Shinji Asami, Akira Kunieda, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Makoto Hidaka, Koki Sakano, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20190367317
    Abstract: A sheet processing apparatus includes a roller pair configured to convey a sheet, a sheet bundle conveyer configured to convey a sheet bundle to the roller pair, and circuitry configured to cause the sheet bundle conveyer to contact leading edges of sheets of the sheet bundle to the roller pair and cause the roller pair to rotate in reverse to align the leading edges of the sheets of the sheet bundle.
    Type: Application
    Filed: February 15, 2019
    Publication date: December 5, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Yohsuke HARAGUCHI, Shinji ASAMI, Tomohiro FURUHASHI, Michitaka SUZUKI, Tomomichi HOSHINO, Fumiharu YONEYAMA, Akira KUNIEDA, Takuya MORINAGA, Makoto HIDAKA, Koki SAKANO
  • Publication number: 20190284011
    Abstract: A sheet processing apparatus includes an entry portion, a sheet conveyance path extending from the entry portion, a skew correction roller pair that contacts a leading edge of a sheet conveyed in a predetermined direction from the entry portion to correct skew of the sheet, and a receiving path. The skew correction roller pair conveys the skew-corrected sheet in a direction opposite the predetermined direction. The receiving path branches from the sheet conveyance path from the entry portion to the skew correction roller pair to receive the sheet conveyed in the direction opposite the predetermined direction.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomohiro Furuhashi, Shinji Asami, Michitaka Suzuki, Tomomichi Hoshino, Fumiharu Yoneyama, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20190284006
    Abstract: A sheet processing apparatus includes a blade having a plurality of teeth aligned in a row, a mover to move in a direction in which the plurality of teeth is aligned and form a perforation in a sheet sandwiched by the blade and the mover, and a pressure device to press the mover toward the blade.
    Type: Application
    Filed: January 24, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomomichi Hoshino, Shinji Asami, Tomohiro Furuhashi, Michitaka Suzuki, Fumiharu Yoneyama, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20190284008
    Abstract: A sheet processing apparatus includes a folding device to fold a sheet and a fold-enhancing device to press a folded portion of the sheet folded by the folding device to perform enhanced folding processing on the sheet whose trailing edge has exited the folding device.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Koki SAKANO, Shinji ASAMI, Tomohiro FURUHASHI, Michitaka SUZUKI, Tomomichi HOSHINO, Fumiharu YONEYAMA, Makoto HIDAKA, Akira KUNIEDA, Takuya MORINAGA, Yohsuke HARAGUCHI
  • Publication number: 20190284012
    Abstract: A sheet processing apparatus includes a rotatable pressing member, a guide, and a contact member. The rotatable pressing member includes a pressing portion that is disposed in a predetermined range in a rotation direction of the pressing member to press a folded portion of a sheet. The guide is disposed opposite the pressing member. The contact member contacts the guide and is rotatably disposed at at least one end of the pressing member in an axial direction of the pressing member.
    Type: Application
    Filed: February 14, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Fumiharu Yoneyama, Shinji Asami, Akira Kunieda, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Makoto Hidaka, Koki Sakano, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20190284009
    Abstract: A sheet processing apparatus includes conveyers to convey a sheet. The conveyers include a registration conveyer which a plurality of sheets is to sequentially contact and is configured to bend a preceding sheet contacting the registration conveyer toward a direction in which the preceding sheet does not obstruct an entry of a following sheet to the registration conveyer when the conveyers overlay and convey the plurality of sheets after the plurality of sheets sequentially contacts the registration conveyer.
    Type: Application
    Filed: December 19, 2018
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Michitaka SUZUKI, Shinji ASAMI, Tomohiro FURUHASHI, Tomomichi HOSHINO, Fumiharu YONEYAMA, Makoto HIDAKA, Koki SAKANO, Akira KUNIEDA, Takuya MORINAGA, Yohsuke HARAGUCHI
  • Publication number: 20190284010
    Abstract: A sheet processing apparatus includes a first conveyer to convey a sheet, a first folding device to fold the sheet and put a crease in the sheet, a second conveyer to convey the sheet folded by the first folding device, a second folding device to fold the sheet and put a crease in the sheet, and a guide. The first conveyer and the second conveyer are rotatable in reverse. The guide guides the sheet conveyed downstream from the first conveyer and the sheet conveyed downstream from the second conveyer.
    Type: Application
    Filed: February 13, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Shinji Asami, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Fumiharu Yoneyama, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Publication number: 20190276263
    Abstract: A folding apparatus includes a folding device to fold a sheet bundle, an additional folding device, a conveyer, and control circuitry. The additional folding device includes a pressure roller disposed downstream from the folding device in a sheet conveyance direction and configured to press the sheet bundle after the folding device folds the sheet bundle and a sheet support member disposed opposite the pressure roller via the sheet bundle. The conveyer conveys the sheet bundle to a position at which the additional folding device presses the sheet bundle and hold the sheet bundle at the position. The control circuitry causes the additional folding device to perform additional folding processing on a first position of the sheet bundle, the conveyer to move the sheet bundle to a second position different from the first position, and the additional folding device to perform the additional folding processing at the second position again.
    Type: Application
    Filed: December 20, 2018
    Publication date: September 12, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Makoto Hidaka, Shinji Asami, Tomohiro Furuhashi, Takuya Morinaga, Tomomichi Hoshino, Yohsuke Haraguchi, Koki Sakano, Michitaka Suzuki, Akira Kunieda, Fumiharu Yoneyama
  • Patent number: 10239715
    Abstract: A sheet folding device, which is included in an image forming system and uses a sheet folding method, includes first and second drive motors, a first sheet conveyor driven by the first drive motor and configured to receive and convey a sheet toward a downstream side of a sheet conveying direction, a second sheet conveyor driven by the second drive motor and configured to receive the sheet conveyed from the first sheet conveyor and to convey the sheet to the downstream side of the sheet conveying direction, and a controller configured to fold the sheet to a predetermined folding length set according to an amount of conveyance of the sheet by the second sheet conveyor while the sheet is being held between the first and second sheet conveyors, and to perform a feedback control with an integral gain to the second drive motor.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 26, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Michitaka Suzuki, Tomohiro Furuhashi, Yuuki Nakagawa, Tomomichi Hoshino