Patents by Inventor Kenji Hari

Kenji Hari 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).

  • Publication number: 20210107761
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Kenji HARI, Manabu YAMANAKA, Nagayasu YOSHIDA
  • Patent number: 10894690
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: January 19, 2021
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Kenji Hari, Manabu Yamanaka, Nagayasu Yoshida
  • Publication number: 20200307936
    Abstract: A sheet stacking apparatus includes an ejector, a stacker, a wall, and an upper surface detector. The ejector ejects a sheet, and the stacker stacks the sheet ejected from the ejector. The wall contacts a trailing end of the sheet ejected from the ejector in an ejection direction to align the sheet. The upper surface detector detects an upper surface on a trailing end side of the sheet stacked on the stacker in the ejection direction. When the sheet moves toward the wall, the upper surface detector moves from a home position in which the upper surface detector detects the upper surface of the sheet to a retracted position in which the upper surface detector does not contact the sheet moving toward the wall.
    Type: Application
    Filed: March 4, 2020
    Publication date: October 1, 2020
    Applicant: Ricoh Company, Ltd
    Inventors: Hisayoshi SUGAWARA, Kei SASAKI, Junya SUZUKI, Koji FURUTA, Yasuo NIIKURA, Kazuki Mishina, Kenji Hari, Yuuta Mori, Yuusuke Shibasaki
  • Publication number: 20200307945
    Abstract: A fold-enforcing assembly includes a fold-enforcing device, a moving device to move the fold-enforcing device in a direction of a fold of a sheet bundle, and control circuitry. The fold-enforcing device includes a pressing member pair to nip and press the fold of the sheet bundle in a direction of thickness, a pressing mechanism to pressurize and depressurize the pressing member pair, and a driver to drive the pressing mechanism. Controlled by the control circuitry, the moving device moves the fold-enforcing device in accordance with a size of the sheet bundle in the direction of the fold; pressing mechanism pressurizes the pressing member pair to press a first end portion of the sheet bundle in the direction of the fold; the moving device moves the fold-enforcing device to a second end portion of the sheet bundle; and pressing mechanism depressurizes the pressing member pair in the second end portion.
    Type: Application
    Filed: March 5, 2020
    Publication date: October 1, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuuta MORI, Kei SASAKI, Junya SUZUKI, Koji FURUTA, Yasuo NIIKURA, Kazuki MISHINA, Kenji HARI, Hisayoshi SUGAWARA, Yuusuke SHIBASAKI
  • Publication number: 20200307944
    Abstract: A binding device includes a stacking device configured to receive sheets, a sheet alignment member configured to align the sheets on the stacking device, a binder configured to bind the sheets on the stacking device, a binder moving device configured to move the binder, and a retreat device configured to retreat the sheet alignment member from a range of movement of the binder. The retreat device retreats the sheet alignment member in response to a pressing force acting on the sheet alignment member in a direction of movement of the binder.
    Type: Application
    Filed: March 6, 2020
    Publication date: October 1, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuusuke SHIBASAKI, Kei SASAKI, Junya SUZUKI, Koji FURUTA, Yasuo NIIKURA, Kazuki MISHINA, Kenji HARI, Yuuta MORI, Hisayoshi SUGAWARA
  • Patent number: 10124973
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a first guide, a second guide, and a lever. The first guide is fixedly disposed to the sheet conveying device. The second guide is disposed opposite the first guide and defining a sheet conveyance passage with the first guide and is configured to rotate about a support shaft thereof operable to open and close the sheet conveyance passage. The lever is configured to rotate about a rotation shaft thereof operable to rotate the second guide. The second guide is configured to change from a closed state in which the sheet conveyance passage is closed to an open state in which the sheet conveyance passage is open, after an angle of rotation of the lever exceeds a threshold value.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 13, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Kenji Hari
  • Publication number: 20180251332
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Kenji HARI, Manabu YAMANAKA, Nagayasu YOSHIDA
  • Patent number: 9994414
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 12, 2018
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Kenji Hari, Manabu Yamanaka, Nagayasu Yoshida
  • Publication number: 20180148286
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a first guide, a second guide, and a lever. The first guide is fixedly disposed to the sheet conveying device. The second guide is disposed opposite the first guide and defining a sheet conveyance passage with the first guide and is configured to rotate about a support shaft thereof operable to open and close the sheet conveyance passage. The lever is configured to rotate about a rotation shaft thereof operable to rotate the second guide. The second guide is configured to change from a closed state in which the sheet conveyance passage is closed to an open state in which the sheet conveyance passage is open, after an angle of rotation of the lever exceeds a threshold value.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 31, 2018
    Applicant: Ricoh Company, Ltd.
    Inventor: Kenji Hari
  • Publication number: 20170203935
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Kenji HARI, Manabu YAMANAKA, Nagayasu YOSHIDA
  • Patent number: 9637342
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: May 2, 2017
    Assignee: Ricoh Company, Limited
    Inventors: Kenji Hari, Manabu Yamanaka, Nagayasu Yoshida
  • Publication number: 20150321872
    Abstract: A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.
    Type: Application
    Filed: April 29, 2015
    Publication date: November 12, 2015
    Applicant: RICOH COMPANY, LIMITED
    Inventors: Kenji HARI, Manabu YAMANAKA, Nagayasu YOSHIDA
  • Patent number: 8336874
    Abstract: A solenoid device including a plunger, a solenoid configured to cause a displacement of the plunger, and a driving control unit configured to control driving of the solenoid. The driving control unit supplies current pulses to the solenoid and changes a pulse interval of the current pulses.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: December 25, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Chisa Kato, Kenji Hari, Toshihisa Takada
  • Publication number: 20090152792
    Abstract: A solenoid device including a plunger, a solenoid configured to cause a displacement of the plunger, and a driving control unit configured to control driving of the solenoid. The driving control unit supplies current pulses to the solenoid and changes a pulse interval of the current pulses.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 18, 2009
    Inventors: Chisa Kato, Kenji Hari, Toshihisa Takada
  • Patent number: 7548720
    Abstract: An image reading apparatus includes a body and an auto document feeder. The body includes an exposure glass, a reader for reading an image of an original sheet through the exposure glass, and a guide disposed on the exposure glass and configured to support the original sheet. The auto document feeder is swingably moved between an open position and a closed position relative to the body and feeds the original sheet onto the exposure glass when situated at the closed position. The auto document feeder includes a press and a regulator. The press presses the original sheet onto the exposure glass. The regulator is mounted to the press and contacts the guide when the auto document feeder is situated at the closed position so as to form a slit between the exposure glass and the press. The slit is barely enough to allow the original sheet to pass therethrough.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: June 16, 2009
    Assignee: Ricoh Company, Ltd.
    Inventor: Kenji Hari
  • Publication number: 20060204298
    Abstract: An image reading apparatus includes a body and an auto document feeder. The body includes an exposure glass, a reader for reading an image of an original sheet through the exposure glass, and a guide disposed on the exposure glass and configured to support the original sheet. The auto document feeder is swingably moved between an open position and a closed position relative to the body and feeds the original sheet onto the exposure glass when situated at the closed position. The auto document feeder includes a press and a regulator. The press presses the original sheet onto the exposure glass. The regulator is mounted to the press and contacts the guide when the auto document feeder is situated at the closed position so as to form a slit between the exposure glass and the press. The slit is barely enough to allow the original sheet to pass therethrough.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 14, 2006
    Inventor: Kenji Hari