Patents by Inventor Satoshi Narai

Satoshi Narai 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: 11124003
    Abstract: An article includes a body member and a detachable member detachably attached to the body member. One of the body member and the detachable member includes a cover portion having an engaging portion on an inner wall face of the cover portion. The other includes a covered portion that is covered with the cover portion and has an engaged portion on an outer wall face of the covered portion. The engaging portion and the engaged portion are configured to be disengaged by warping the cover portion so that the cover portion displaces to an outer wall face side of the cover portion. The one of the body member and the detachable member includes a finger-applying-position indicator at a position deviated from a portion corresponding to the cover portion, on an outer wall face of the one. The finger-applying-position indicator indicates a position to be applied with fingers of a user.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: September 21, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masashi Ota, Munekazu Hirata, Kunihiko Nishioka, Tomoya Fujii, Yohei Osanai, Satoshi Narai, Masatoshi Ishida, Takayuki Andoh
  • Publication number: 20210234984
    Abstract: An apparatus includes a body, an object to be cooled, a unit, a structural frame, and a ventilation duct. The unit is disposed detachably from the body of the apparatus. The structural frame constitutes a part of the body or the unit. The ventilation duct includes a plurality of ducts connected to each other. The ventilation duct is configured to guide air sucked from outside of the body through an intake of the body to an exhaust port to blow the air to the object to be cooled. The structural frame includes a part of at least one of the plurality of ducts.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 29, 2021
    Applicant: Ricoh Company, Ltd.
    Inventor: Satoshi NARAI
  • Patent number: 11016406
    Abstract: An image forming apparatuses includes an apparatus body configured to house a replacement part. The apparatus body includes a guiding face configured to guide a guided face of the replacement part. The guided face is on a side along a movement direction in which the replacement part moves between a set position in the apparatus body and an attaching and detaching position at which the replacement part is attached to and detached from the apparatus body. The apparatus further include a moving device configured to move the replacement part between the set position and the attaching and detaching position, and a pressing device configured to press the guided face of the replacement part against the guiding face of the apparatus body while the replacement part moves between the set position and the attaching and detaching position.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 25, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Masashi Ota, Masatoshi Ishida, Yohei Osanai, Satoshi Narai, Takayuki Andoh, Tomoya Fujii, Kunihiko Nishioka, Munekazu Hirata
  • Patent number: 10882333
    Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium, a main body configured to house the recording device, and a cover rotatably attached to the main body. The main body includes a recording face to be disposed opposite the recording medium, a first face positioned opposite the recording face, and a second face positioned between the recording face and the first face. The cover includes a first cover portion configured to cover the first face of the main body, and a second cover portion configured to cover at least a portion of the second face, and the second cover portion is configured to house a battery.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 5, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Osanai, Takayuki Andoh, Masatoshi Ishida, Satoshi Narai, Tomoya Fujii, Kunihiko Nishioka, Munekazu Hirata, Masashi Ota
  • Patent number: 10855873
    Abstract: An image forming apparatus includes a body, an image forming device configured to form an image on a recording medium and supported by the body, an attachment configured to be removably attached to the body, and a cover configured to be removably attached to the body. The cover is configured to cover the attachment attached to the body. The attachment is configured to switch a state in use of the image forming apparatus by attaching and removing of the attachment to and from the body.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: December 1, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoya Fujii, Takayuki Andoh, Masatoshi Ishida, Yohei Osanai, Satoshi Narai, Kunihiko Nishioka, Masashi Ota
  • Publication number: 20200230984
    Abstract: An article includes a body member and a detachable member detachably attached to the body member. One of the body member and the detachable member includes a cover portion having an engaging portion on an inner wall face of the cover portion. The other includes a covered portion that is covered with the cover portion and has an engaged portion on an outer wall face of the covered portion. The engaging portion and the engaged portion are configured to be disengaged by warping the cover portion so that the cover portion displaces to an outer wall face side of the cover portion. The one of the body member and the detachable member includes a finger-applying-position indicator at a position deviated from a portion corresponding to the cover portion, on an outer wall face of the one. The finger-applying-position indicator indicates a position to be applied with fingers of a user.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Inventors: Masashi OTA, Munekazu HIRATA, Kunihiko NISHIOKA, Tomoya FUJII, Yohei OSANAI, Satoshi NARAI, Masatoshi ISHIDA, Takayuki ANDOH
  • Publication number: 20200230986
    Abstract: An image forming apparatus includes an apparatus body, a cover, a first positioning member, and a second positioning member. The apparatus body includes a mounted portion. The cover is detachably mounted on the apparatus body. The cover includes a mounting portion configured to be mounted on the mounted portion of the apparatus body. The first positioning member is configured to position the cover at a first target position in a first direction with respect to the apparatus body. The second positioning member is configured to position the cover at a second target position in a second direction orthogonal to the first direction with respect to the apparatus body, before the mounting portion is mounted on the mounted portion after the cover is positioned at the first target position by the first positioning member.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Inventors: Munekazu HIRATA, Tomoya FUJII, Masatoshi ISHIDA, Kunihiko NISHIOKA, Takayuki ANDOH, Masashi OTA, Yohei OSANAI, Satoshi NARAI
  • Publication number: 20200101763
    Abstract: An image forming apparatus includes a recording device and an apparatus body to internally house the recording device. The apparatus body includes an attachment unit to be removably mounted in the apparatus body and an apparatus body-side connector. The attachment unit includes an attachment-side connector to be electrically connected to the apparatus body-side connector. The apparatus body also includes a pressing portion to press the attachment unit in a direction in which the attachment-side connector faces the apparatus body-side connector in a state where the attachment unit is attached to the apparatus body. The direction is orthogonal to a mounting direction of the attachment unit. The apparatus body further includes a movable member holding the pressing portion movable between a first position where the pressing portion is closest to the apparatus body-side connector and a second position where the pressing portion is farthest from the apparatus body-side connector.
    Type: Application
    Filed: September 11, 2019
    Publication date: April 2, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Masatoshi Ishida, Kunihiko Nishioka, Yohei Osanai, Satoshi Narai, Tomoya Fujii, Takayuki Andoh, Masashi Ota, Munekazu Hirata
  • Publication number: 20200101751
    Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium and an apparatus body configured to house the recording device. The image forming apparatus further includes an attachment unit configured to be removably mounted in the apparatus body; a protection target disposed downstream, in a mounting direction of the attachment unit, from a mounting position of the attachment unit in the apparatus body; and a contact portion at least a part of which is positioned upstream from the protection target in the mounting direction.
    Type: Application
    Filed: September 3, 2019
    Publication date: April 2, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Munekazu HIRATA, Takayuki ANDOH, Satoshi NARAI, Kunihiko NISHIOKA, Masatoshi ISHIDA, Yohei OSANAI, Tomoya FUJII, Masashi OTA
  • Publication number: 20200094548
    Abstract: A liquid discharge apparatus includes an apparatus body, a liquid discharge head configured to discharge a liquid and be removably attached to the apparatus body, and a temperature detection device configured to detect a temperature of the liquid discharge head. The temperature detection device includes a temperature detector disposed in the apparatus body and configured to be in line contact with the liquid discharge head.
    Type: Application
    Filed: August 12, 2019
    Publication date: March 26, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Kunihiko NISHIOKA, Yohei OSANAI, Satoshi NARAI, Munekazu HIRATA, Masatoshi ISHIDA, Takayuki ANDOH, Tomoya FUJII, Masashi OTA
  • Publication number: 20200096897
    Abstract: An image forming apparatuses includes an apparatus body configured to house a replacement part. The apparatus body includes a guiding face configured to guide a guided face of the replacement part. The guided face is on a side along a movement direction in which the replacement part moves between a set position in the apparatus body and an attaching and detaching position at which the replacement part is attached to and detached from the apparatus body. The apparatus further include a moving device configured to move the replacement part between the set position and the attaching and detaching position, and a pressing device configured to press the guided face of the replacement part against the guiding face of the apparatus body while the replacement part moves between the set position and the attaching and detaching position.
    Type: Application
    Filed: August 19, 2019
    Publication date: March 26, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Masashi OTA, Masatoshi ISHIDA, Yohei OSANAI, Satoshi NARAI, Takayuki ANDOH, Tomoya FUJII, Kunihiko NISHIOKA, Munekazu HIRATA
  • Publication number: 20200079109
    Abstract: An image forming apparatus includes a body including a recording side to be disposed opposite a recording medium and an operation face opposite the recording side. The image forming apparatus further include an image forming device supported on the recording side and configured to form an image on the recording medium, an operation input device configured to input an image formation instruction, and a power operation device configured to power on and off the image forming apparatus. On the operation face, the operation input device is disposed at a first position shifted from a center position on the operation face in a predetermined direction, and the power operation device is disposed at a second position located on an opposite side of the first position with respect to the center position on the operation face.
    Type: Application
    Filed: June 25, 2019
    Publication date: March 12, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Masashi OTA, Tomoya FUJII, Munekazu HIRATA, Satoshi NARAI, Kunihiko NISHIOKA, Yohei OSANAI, Takayuki ANDOH, Masatoshi ISHIDA
  • Publication number: 20200079112
    Abstract: An image forming apparatus includes a recording device configured to record an image on a recording medium, a main body configured to house the recording device, and a cover rotatably attached to the main body. The main body includes a recording face to be disposed opposite the recording medium, a first face positioned opposite the recording face, and a second face positioned between the recording face and the first face. The cover includes a first cover portion configured to cover the first face of the main body, and a second cover portion configured to cover at least a portion of the second face, and the second cover portion is configured to house a battery.
    Type: Application
    Filed: July 25, 2019
    Publication date: March 12, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yohei OSANAI, Takayuki Andoh, Masatoshi Ishida, Satoshi Narai, Tomoya Fujii, Kunihiko Nishioka, Munekazu Hirata, Masashi Ota
  • Publication number: 20200079110
    Abstract: An image forming apparatus includes a body including a recording face to be disposed opposite a recording medium, a recording device supported by the body and configured to record an image on the recording medium, a rotator including a rotation shaft and configured to contact and rotate on the recording medium, and a rotator holder configured to hold the rotator. The rotator holder includes a tilt restriction portion and a normal direction pressed portion being a different component from the tilt restriction portion. The tilt restriction portion is to restrict a tilt of the rotation shaft of the rotator around a virtual axis orthogonal to the recording face. The normal direction pressed portion is to receive force in a direction normal to the recording face, exerted from the rotator, the normal direction pressed portion being a different component from the tilt restriction portion.
    Type: Application
    Filed: July 2, 2019
    Publication date: March 12, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Munekazu HIRATA, Kunihiko NISHIOKA, Yohei OSANAI, Satoshi NARAI, Tomoya FUJII, Masatoshi ISHIDA, Takayuki ANDOH, Masashi OTA
  • Publication number: 20200084333
    Abstract: An image forming apparatus includes a body, an image forming device configured to form an image on a recording medium and supported by the body, an attachment configured to be removably attached to the body, and a cover configured to be removably attached to the body. The cover is configured to cover the attachment attached to the body. The attachment is configured to switch a state in use of the image forming apparatus by attaching and removing of the attachment to and from the body.
    Type: Application
    Filed: June 10, 2019
    Publication date: March 12, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomoya FUJII, Takayuki ANDOH, Masatoshi ISHIDA, Yohei OSANAI, Satoshi NARAI, Kunihiko NISHIOKA, Masashi OTA
  • Patent number: 10507995
    Abstract: A sheet conveying device includes a separator to separate a sheet from sheets. The separator includes a separation conveyor; a separation resistance member to press against the separation conveyor via the sheet; a resistance-member holder; a biasing member to contact and bias the resistance-member holder to press the separation resistance member toward the separation conveyor, the resistance-member holder to rotate about a resistance-member rotary shaft to separate from the biasing member in detaching from an apparatus body; and a biasing-member holder configured to rotate about a biasing-member rotary shaft to more incline the biasing member in a state, in which the biasing member is spaced apart from the resistance-member holder, in a moving direction of the resistance-member holder to detach from the apparatus body than the biasing member in a biasing state in which the biasing member biases the resistance-member holder in contact with the resistance-member holder.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: December 17, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Munekazu Hirata, Satoshi Narai, Yasunobu Youda, Tatsuaki Nagano, Takayuki Andoh, Daisuke Imaki, Tomoya Fujii, Toshiyuki Horikawa, Koji Hatayama, Kaoru Tada, Naoto Kitamura
  • Patent number: 10491768
    Abstract: An image reading device includes a plurality of conveyance rollers to convey a sheet, a motor to drive the plurality of conveyance rollers, an image reading unit to read an image of the sheet, a control device to perform a stop control that stops the sheet in a course of a conveyance path, and a clutch to transmit a driving force of the motor. A first conveyance roller group includes at least one of the plurality of conveyance rollers upstream from a leading end of the sheet stopped by the stop control in a conveyance direction, to which the driving force is transmitted via the clutch. A second conveyance roller group includes at least one of the plurality of conveyance rollers downstream from the leading end of the sheet stopped by the stop control in the conveyance direction, to which the driving force is transmitted without the clutch.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 26, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Andoh, Yasunobu Youda, Tatsuaki Nagano, Daisuke Imaki, Satoshi Narai, Tomoya Fujii, Toshiyuki Horikawa, Koji Hatayama, Kaoru Tada, Munekazu Hirata, Naoto Kitamura
  • Patent number: 10412246
    Abstract: An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 10, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Takuji Kawai, Yasunobu Youda, Yohei Osanai, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Daisuke Imaki, Takayuki Andoh, Susumu Miyazaki, Tetsuo Inui, Yuki Fujii, Koichi Ono, Takeshi Shikama, Shingo Shiramura, Hideo Tanaka
  • Patent number: 10341516
    Abstract: A rotation drive device includes a driven rotation member, a driving rotation member, a rotation relay member, a shaft, and a holder. The rotation relay member transmits only a unidirectional rotational driving force from the driving rotation member to the driven rotation member. The rotation relay member includes a housing and a cylindrical one-way clutch. A contact portion between the driving rotation member and the shaft is configured to rotate the driving rotation member and the shaft to transmit the driving force to an inner peripheral side of the cylindrical one-way clutch via the shaft. The driving rotation member includes a boss projected toward the holder and rotatably held in the holder. A portion of the shaft to support the driving rotation member and an inner wall surface of a through hole of the driving rotation member are shaped to rotate the shaft and the driving rotation member. together.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 2, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Imaki, Yohei Osanai, Genta Hagiwara, Masatoshi Ishida, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Yasunobu Youda, Takayuki Andoh, Kaoru Tada
  • Publication number: 20190068815
    Abstract: An image reading device includes a plurality of conveyance rollers to convey a sheet, a motor to drive the plurality of conveyance rollers, an image reading unit to read an image of the sheet, a control device to perform a stop control that stops the sheet in a course of a conveyance path, and a clutch to transmit a driving force of the motor. A first conveyance roller group includes at least one of the plurality of conveyance rollers upstream from a leading end of the sheet stopped by the stop control in a conveyance direction, to which the driving force is transmitted via the clutch. A second conveyance roller group includes at least one of the plurality of conveyance rollers downstream from the leading end of the sheet stopped by the stop control in the conveyance direction, to which the driving force is transmitted without the clutch.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 28, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Takayuki ANDOH, Yasunobu YOUDA, Tatsuaki NAGANO, Daisuke IMAKI, Satoshi NARAI, Tomoya FUJII, Toshiyuki HORIKAWA, Koji HATAYAMA, Kaoru TADA, Munekazu HIRATA, Naoto KITAMURA