Patents by Inventor Yoshihide Ohta

Yoshihide Ohta 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: 10935929
    Abstract: An image forming apparatus includes an image forming device; a fixing device; a first conveyance passage downstream from the fixing device in a sheet conveyance direction; a second conveyance passage downstream from the fixing device and communicating with the first conveyance passage; a sheet reversing member to reverse a conveyance direction of the sheet to the second conveyance passage; a divider to switch a route of the sheet between the first conveyance passage and the second conveyance passage; and a sheet detection sensor disposed downstream from the fixing device and upstream from the divider. The first conveyance passage includes a sheet outlet from which the sheet is ejected outside the apparatus. The apparatus further includes a ventilation passage communicating with an outside, to guide air from the outside to pass the sheet detection sensor and enter at least one of the first conveyance passage and the second conveyance passage.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: March 2, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoya Tanaka, Shoji Asanuma, Taiga Shoen, Yoshihide Ohta, Akimitsu Obana, Makoto Kikura
  • Patent number: 10761477
    Abstract: An image forming apparatus includes an apparatus body including a body side connector and a removable unit removably inserted in the apparatus body. The removable unit includes a unit side connector configured to engage with the body side connector in conjunction with insertion of the removable unit into and from the apparatus body in an insertion direction and disengage from the body side connector in conjunction with removal of the removable unit from the apparatus body in a removal direction. The apparatus further includes a first holder and a second holder. The first holder holds the body side connector and restrict the body side connector from moving in the insertion direction and the removal direction relative to the first holder. The second holder holds the first holder and restrict the first holder from moving in a direction different from the insertion direction and the removal direction.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 1, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshihide Ohta, Makoto Kikura, Shoji Asanuma, Akimitsu Obana, Tomoya Tanaka, Taiga Shoen
  • Publication number: 20200133195
    Abstract: An image forming apparatus includes an apparatus body including a body side connector and a removable unit removably inserted in the apparatus body. The removable unit includes a unit side connector configured to engage with the body side connector in conjunction with insertion of the removable unit into and from the apparatus body in an insertion direction and disengage from the body side connector in conjunction with removal of the removable unit from the apparatus body in a removal direction. The apparatus further includes a first holder and a second holder. The first holder holds the body side connector and restrict the body side connector from moving in the insertion direction and the removal direction relative to the first holder. The second holder holds the first holder and restrict the first holder from moving in a direction different from the insertion direction and the removal direction.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshihide OHTA, Makoto KIKURA, Shoji ASANUMA, Akimitsu OBANA, Tomoya TANAKA, Taiga SHOEN
  • Publication number: 20200103823
    Abstract: An image forming apparatus includes an image forming device; a fixing device; a first conveyance passage downstream from the fixing device in a sheet conveyance direction; a second conveyance passage downstream from the fixing device and communicating with the first conveyance passage; a sheet reversing member to reverse a conveyance direction of the sheet to the second conveyance passage; a divider to switch a route of the sheet between the first conveyance passage and the second conveyance passage; and a sheet detection sensor disposed downstream from the fixing device and upstream from the divider. The first conveyance passage includes a sheet outlet from which the sheet is ejected outside the apparatus. The apparatus further includes a ventilation passage communicating with an outside, to guide air from the outside to pass the sheet detection sensor and enter at least one of the first conveyance passage and the second conveyance passage.
    Type: Application
    Filed: September 10, 2019
    Publication date: April 2, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomoya TANAKA, Shoji ASANUMA, Taiga SHOEN, Yoshihide OHTA, Akimitsu OBANA, Makoto KIKURA
  • Patent number: 10599091
    Abstract: A cabinet includes a first body side engagement and a second body side engagement mounted on a body and a first cover side engagement and a second cover side engagement mounted on a cover. Slide restriction faces of the first cover side engagement and the second cover side engagement come into contact with slide restriction faces of the first body side engagement and the second body side engagement, respectively, to restrict sliding of a slider when the first cover side engagement does not engage the first body side engagement. The slide restriction face of at least one of the first body side engagement and the first cover side engagement has a length that is greater than a length of the slide restriction face of other one of the first body side engagement, the first cover side engagement, the second body side engagement, and the second cover side engagement.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 24, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Kikura, Yoshihide Ohta, Shoji Asanuma, Gakushi Tanaka, Tomoya Tanaka, Akimitsu Obana, Taiga Shoen
  • Publication number: 20190227478
    Abstract: A cabinet includes a first body side engagement and a second body side engagement mounted on a body and a first cover side engagement and a second cover side engagement mounted on a cover. Slide restriction faces of the first cover side engagement and the second cover side engagement come into contact with slide restriction faces of the first body side engagement and the second body side engagement, respectively, to restrict sliding of a slider when the first cover side engagement does not engage the first body side engagement. The slide restriction face of at least one of the first body side engagement and the first cover side engagement has a length that is greater than a length of the slide restriction face of other one of the first body side engagement, the first cover side engagement, the second body side engagement, and the second cover side engagement.
    Type: Application
    Filed: December 12, 2018
    Publication date: July 25, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Makoto Kikura, Yoshihide Ohta, Shoji Asanuma, Gakushi Tanaka, Tomoya Tanaka, Akimitsu Obana, Taiga Shoen
  • Patent number: 10146175
    Abstract: An image forming apparatus includes a scanner to read an image on an original and an electric box disposed below the scanner and extended horizontally with respect to the scanner. The electric box includes an electric cabinet having a box shape and an electrical device disposed inside the electric cabinet.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: December 4, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroki Ishimitsu, Katsuhiro Hoshi, Takayuki Nishi, Kazuyuki Ito, Yoshihide Ohta, Nobuhiro Shima
  • Patent number: 10038800
    Abstract: An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: July 31, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroaki Murakami, Nobuhiro Shima, Yoshihide Ohta, Hiroki Ishimitsu, Kazuyuki Ito, Katsuhiro Hoshi, Takayuki Nishi
  • Patent number: 10025252
    Abstract: An image forming apparatus includes an apparatus body, an image forming section, an ejected recording medium container, and a sound absorber. The image forming section forms an image on a recording medium and ejects the recording medium from an ejection port. The ejected recording medium container includes an opening at at least one side of the apparatus body and a space facing the ejection port to contain the recording medium ejected from the ejection port. The sound absorber is disposed on the ejected recording medium container.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: July 17, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Matsuda, Masahiro Ishida, Yoshihide Ohta
  • Publication number: 20180150017
    Abstract: An image forming apparatus includes an apparatus body, an image forming section, an ejected recording medium container, and a sound absorber. The image forming section forms an image on a recording medium and ejects the recording medium from an ejection port. The ejected recording medium container includes an opening at at least one side of the apparatus body and a space facing the ejection port to contain the recording medium ejected from the ejection port. The sound absorber is disposed on the ejected recording medium container.
    Type: Application
    Filed: January 25, 2018
    Publication date: May 31, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Naoki MATSUDA, Masahiro Ishida, Yoshihide Ohta
  • Patent number: 9904229
    Abstract: An image forming apparatus includes an apparatus body, an image forming section, an ejected recording medium container, and a sound absorber. The image forming section forms an image on a recording medium and ejects the recording medium from an ejection port. The ejected recording medium container includes an opening at at least one side of the apparatus body and a space facing the ejection port to contain the recording medium ejected from the ejection port. The sound absorber is disposed on the ejected recording medium container.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 27, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Matsuda, Masahiro Ishida, Yoshihide Ohta
  • Patent number: 9880512
    Abstract: An image forming apparatus includes an electric wire and an electric box. The electric box extends substantially horizontally and includes a wire connector coupled to the electric wire. A body face exposes the wire connector. An outer cover covers the body face. The outer cover includes a slot and a wire accommodator. The slot is disposed opposite the wire connector to expose the wire connector to an outside of the image forming apparatus. The wire accommodator accommodates the electric wire.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: January 30, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Keiichi Shimizu, Hiroki Ishimitsu, Kazuyuki Ito, Takayuki Nishi, Katsuhiro Hoshi, Yoshihide Ohta, Nobuhiro Shima
  • Publication number: 20170064109
    Abstract: An image forming apparatus includes a scanner to read an image on an original and an electric box disposed below the scanner and extended horizontally with respect to the scanner. The electric box includes an electric cabinet having a box shape and an electrical device disposed inside the electric cabinet.
    Type: Application
    Filed: August 4, 2016
    Publication date: March 2, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroki Ishimitsu, Katsuhiro Hoshi, Takayuki Nishi, Kazuyuki Ito, Yoshihide Ohta, Nobuhiro Shima
  • Publication number: 20170060075
    Abstract: An image forming apparatus includes an electric wire and an electric box. The electric box extends substantially horizontally and includes a wire connector coupled to the electric wire. A body face exposes the wire connector. An outer cover covers the body face. The outer cover includes a slot and a wire accommodator. The slot is disposed opposite the wire connector to expose the wire connector to an outside of the image forming apparatus. The wire accommodator accommodates the electric wire.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 2, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Keiichi SHIMIZU, Hiroki ISHIMITSU, Kazuyuki ITO, Takayuki NISHI, Katsuhiro HOSHI, Yoshihide OHTA, Nobuhiro SHIMA
  • Publication number: 20170064106
    Abstract: An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 2, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroaki MURAKAMI, Nobuhiro SHIMA, Yoshihide OHTA, Hiroki ISHIMITSU, Kazuyuki ITO, Katsuhiro HOSHI, Takayuki NISHI
  • Patent number: 9477196
    Abstract: An image forming apparatus is provided, including an apparatus body; an image forming unit to form an image on a sheet member; and a sheet ejection container including a sheet ejection tray on which the sheet member ejected from the apparatus body is stacked. In the image forming apparatus, at least one side of the apparatus body is open and the sheet ejection container is disposed inside the apparatus body at the open side. The sheet ejection tray is configured to be movable between a first position in the sheet ejection container where the sheet member is ejected to the sheet member tray and a second position nearer to the open side than the first position.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 25, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihide Ohta, Tomoyuki Nishikawa
  • Publication number: 20160161904
    Abstract: An image forming apparatus includes an apparatus body, an image forming section, an ejected recording medium container, and a sound absorber. The image forming section forms an image on a recording medium and ejects the recording medium from an ejection port. The ejected recording medium container includes an opening at at least one side of the apparatus body and a space facing the ejection port to contain the recording medium ejected from the ejection port. The sound absorber is disposed on the ejected recording medium container.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 9, 2016
    Applicant: Ricoh Company, Ltd.
    Inventors: Naoki MATSUDA, Masahiro ISHIDA, Yoshihide OHTA
  • Patent number: 9353553
    Abstract: An image forming apparatus includes an image forming unit configured to form an image; a drawer unit configured to be pulled out from a body of the image forming apparatus; a first lock unit configured to receive power from a power supply and perform at least one of lock and unlock of the drawer unit with respect to the body; and a second lock unit configured to perform lock and unlock of the drawer unit with respect to the body by a mechanical operation performed by an operator.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: May 31, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Yusuke Funayama, Joh Ebara, Hiroshi Ishii, Junichi Kawase, Kohta Takenaka, Tetsuji Nishikawa, Yoshihide Ohta, Kouta Hirakawa, Toshihiro Shimada, Tsuyoshi Endo
  • Patent number: 9188946
    Abstract: The image forming apparatus includes an image forming section; a conveyance path to convey a recording medium to the image forming section; a drawer unit including the conveyance path and configured to be pulled out relative to the apparatus; an electrical cable to electrically connect the drawer unit and an interior of the apparatus even when the drawer unit is pulled out from the apparatus; and a cable holder (a first regulating member) to ensure that that the cable is securely prevented from protruding from the drawer unit. According to the present invention, the electric cable is prevented from running off from the drawer unit due to the folding of the cable caused by the regulating member, so that the electric cable is prevented from getting hung up on the parts disposed in the body.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: November 17, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tetsuji Nishikawa, Yusuke Funayama, Hidehiko Maeda, Junichi Kawase, Hiroshi Ishii, Joh Ebara, Kohta Takenaka, Yoshihide Ohta, Kohta Hirakawa, Toshihiro Shimada, Yusuke Masu, Makoto Suzuki
  • Patent number: 9176462
    Abstract: An image forming apparatus having a drawer unit that includes therein a paper-feeding conveying path for conveying a recording medium conveyed from a paper feeding unit on which the recording media are stacked to an image forming unit and/or a discharge conveying path for conveying the recording medium on which an image has been formed to a discharging unit, and be drawn out from an apparatus main body; a lock unit that locks the drawer unit to the apparatus main body; a straddle detecting unit that detects whether the recording medium straddles a conveying path in the apparatus main body and a conveying path in the drawer unit; and a controller that controls the lock unit to lock the drawer unit to the apparatus main body when the straddle detecting unit detects the straddle.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 3, 2015
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Yoshihide Ohta, Joh Ebara, Hiroshi Ishii, Junichi Kawase, Kohta Takenaka, Tetsuji Nishikawa, Kohta Hirakawa, Toshihiro Shimada, Yusuke Funayama, Tsuyoshi Endo, Yusuke Masu, Makoto Suzuki