Patents by Inventor Yuzo Onishi
Yuzo Onishi 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).
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Patent number: 9488939Abstract: A fixing device has a fixing member, a guide member, and a blowing member. The guide member is pivotable to be located selectively either in a first position where it guides a recording medium to a fixing nip and a second position where it shuts a recording medium transport passage. When the fixing member is driven to rotate, the guide member is located in the first position to guide air blown from the blowing member to opposite ends of the fixing member. When the fixing member is not driven to rotate, the guide member is located in the second position to let air blown from the blowing member pass between the guide member and the fixing member.Type: GrantFiled: March 21, 2016Date of Patent: November 8, 2016Assignee: KYOCERA Document Solutions Inc.Inventor: Yuzo Onishi
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Publication number: 20160313680Abstract: A fixing device has a fixing member, a guide member, and a blowing member. The guide member is pivotable to be located selectively either in a first position where it guides a recording medium to a fixing nip and a second position where it shuts a recording medium transport passage. When the fixing member is driven to rotate, the guide member is located in the first position to guide air blown from the blowing member to opposite ends of the fixing member. When the fixing member is not driven to rotate, the guide member is located in the second position to let air blown from the blowing member pass between the guide member and the fixing member.Type: ApplicationFiled: March 21, 2016Publication date: October 27, 2016Applicant: KYOCERA Document Solutions Inc.Inventor: Yuzo ONISHI
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Patent number: 9388013Abstract: A sheet discharging device discharges a sheet to a sheet tray on which the sheet is to be placed. The sheet discharging device includes a discharge path configured to discharge the sheet to the sheet tray, a discharging portion arranged in the discharge path and configured to discharge the sheet passing along the discharge path to the sheet tray, and a pressing member capable of changing a posture between a hanging posture where the pressing member hangs down from a pivot center above the discharge path so as to block the discharge path for the sheet and a retracted posture where the pressing member is pivoted in a discharging direction about the pivot center to open the discharge path by receiving a pressing force in the discharging direction from the sheet. The pressing member includes an attaching portion to which a weight member having a predetermined weight is attachable.Type: GrantFiled: April 10, 2014Date of Patent: July 12, 2016Assignee: KYOCERA Document Solutions Inc.Inventor: Yuzo Onishi
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Publication number: 20160170341Abstract: A fixing device includes a heating member, a pressure member, and a conveyance guide. The heating member internally includes a heating element. The pressure member includes an elastic layer located to be pressed against the heating member to ensure a fixing nip area between the heating member and the pressure member. The conveyance guide is located upstream with respect to the fixing nip area in a conveying path of a sheet on which the toner image is formed, and assists the sheet to run. The conveyance guide includes a first guiding portion that guides a head of the sheet to a distal end position close to the heating member and a second guiding portion that guides a tail of the sheet from the distal end position to an intermediate position between the heating member and the pressure member.Type: ApplicationFiled: December 16, 2015Publication date: June 16, 2016Inventor: Yuzo Onishi
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Patent number: 9069326Abstract: An image formation apparatus comprises an opening and closing cover, a cover fulcrum shaft, a roller shaft, and a grounding member. The cover fulcrum shaft pivotably supports the opening and closing cover. The roller shaft is disposed on the opening and closing cover. The grounding member has a first portion connected to the roller shaft and a second portion connected to the cover fulcrum shaft. The cover fulcrum shaft has a bent part that is bent so as to extend in a direction intersecting the pivot axis direction of the opening and closing cover, the opening and closing cover includes an engaging part that engages with the bent part, and the cover fulcrum shaft integrally pivots with the opening and closing cover when the opening and closing cover is opened and closed.Type: GrantFiled: July 24, 2014Date of Patent: June 30, 2015Assignee: KYOCERA Document Solutions Inc.Inventors: Yuzo Onishi, Yoshiyuki Asakawa
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Patent number: 8964199Abstract: An image forming apparatus includes a main conveyance path 13, a main discharge roller 17, and a main stacking tray 19. The sorting discharge unit 20 includes a subsidiary conveyance path 22, a change-over mechanism 23, a subsidiary discharge roller 24 and a subsidiary stacking tray 26. The subsidiary discharge roller 24 is provided on the most downstream side of the subsidiary conveyance path 22. The subsidiary stacking tray 26 is arranged above the main stacking tray 19 and the transfer sheet P discharged from the subsidiary discharge roller 24 is stacked in the subsidiary stacking tray 26. A stacking concave portion 29 which expands a stackable area of the subsidiary stacking tray 26 is formed below the subsidiary discharge roller 24.Type: GrantFiled: March 18, 2013Date of Patent: February 24, 2015Assignee: KYOCERA Document Solutions Inc.Inventor: Yuzo Onishi
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Publication number: 20150037058Abstract: An image formation apparatus comprises an opening and closing cover, a cover fulcrum shaft, a roller shaft, and a grounding member. The cover fulcrum shaft pivotably supports the opening and closing cover. The roller shaft is disposed on the opening and closing cover. The grounding member has a first portion connected to the roller shaft and a second portion connected to the cover fulcrum shaft. The cover fulcrum shaft has a bent part that is bent so as to extend in a direction intersecting the pivot axis direction of the opening and closing cover, the opening and closing cover includes an engaging part that engages with the bent part, and the cover fulcrum shaft integrally pivots with the opening and closing cover when the opening and closing cover is opened and closed.Type: ApplicationFiled: July 24, 2014Publication date: February 5, 2015Inventors: Yuzo ONISHI, Yoshiyuki ASAKAWA
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Patent number: 8928898Abstract: An image forming apparatus includes a transport guide member, and a detection mechanism. The transport guide member guides a recording medium. The detection mechanism detects presence or absence of the recording medium. An actuator portion of the detection mechanism includes a shaft portion and a detection portion configured to swing about the shaft portion when abutting the recording medium. A first guide rib of the transport guide member is provided with a notch portion through which the shaft portion penetrates. The shaft portion is provided with a second guide rib configured to close an opening of the notch portion viewed from an axis direction of the shaft portion.Type: GrantFiled: May 20, 2014Date of Patent: January 6, 2015Assignee: KYOCERA Document Solutions Inc.Inventor: Yuzo Onishi
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Publication number: 20140347684Abstract: An image forming apparatus includes a transport guide member, and a detection mechanism. The transport guide member guides a recording medium. The detection mechanism detects presence or absence of the recording medium. An actuator portion of the detection mechanism includes a shaft portion and a detection portion configured to swing about the shaft portion when abutting the recording medium. A first guide rib of the transport guide member is provided with a notch portion through which the shaft portion penetrates. The shaft portion is provided with a second guide rib configured to close an opening of the notch portion viewed from an axis direction of the shaft portion.Type: ApplicationFiled: May 20, 2014Publication date: November 27, 2014Applicant: KYOCERA DOCUMENT SOLUTIONS INC.Inventor: Yuzo ONISHI
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Publication number: 20140306402Abstract: A sheet discharging device discharges a sheet to a sheet tray on which the sheet is to be placed. The sheet discharging device includes a discharge path configured to discharge the sheet to the sheet tray, a discharging portion arranged in the discharge path and configured to discharge the sheet passing along the discharge path to the sheet tray, and a pressing member capable of changing a posture between a hanging posture where the pressing member hangs down from a pivot center above the discharge path so as to block the discharge path for the sheet and a retracted posture where the pressing member is pivoted in a discharging direction about the pivot center to open the discharge path by receiving a pressing force in the discharging direction from the sheet. The pressing member includes an attaching portion to which a weight member having a predetermined weight is attachable.Type: ApplicationFiled: April 10, 2014Publication date: October 16, 2014Applicant: KYOCERA Document Solutions Inc.Inventor: Yuzo Onishi
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Patent number: 8651479Abstract: A sheet delivery device (80) includes a sheet presser member (61), which is positioned in the vicinity of a sheet delivery port (53) on a downstream side in a sheet delivery direction, for pressing a trailing end of a sheet to be delivered from the sheet delivery port (53). The sheet presser member (61) includes a side surface portion (61a), which is positioned to face a leading end of the sheet to be delivered from the sheet delivery port (53) and a bottom surface portion (61b) which is projected from a lower end of the side surface portion (61a) toward the downstream side in the sheet delivery direction.Type: GrantFiled: October 10, 2011Date of Patent: February 18, 2014Assignee: Kyocera Document Solutions, Inc.Inventor: Yuzo Onishi
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Publication number: 20130250334Abstract: An image forming apparatus includes a main conveyance path 13, a main discharge roller 17, and a main stacking tray 19. The sorting discharge unit 20 includes a subsidiary conveyance path 22, a change-over mechanism 23, a subsidiary discharge roller 24 and a subsidiary stacking tray 26. The subsidiary discharge roller 24 is provided on the most downstream side of the subsidiary conveyance path 22. The subsidiary stacking tray 26 is arranged above the main stacking tray 19 and the transfer sheet P discharged from the subsidiary discharge roller 24 is stacked in the subsidiary stacking tray 26. A stacking concave portion 29 which expands a stackable area of the subsidiary stacking tray 26 is formed below the subsidiary discharge roller 24.Type: ApplicationFiled: March 18, 2013Publication date: September 26, 2013Applicant: KYOCERA DOCUMENT SOLUTIONS INC.Inventor: Yuzo Onishi
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Publication number: 20120112402Abstract: A sheet delivery device (80) includes a sheet presser member (61), which is positioned in the vicinity of a sheet delivery port (53) on a downstream side in a sheet delivery direction, for pressing a trailing end of a sheet to be delivered from the sheet delivery port (53). The sheet presser member (61) includes a side surface portion (61a), which is positioned to face a leading end of the sheet to be delivered from the sheet delivery port (53) and a bottom surface portion (61b) which is projected from a lower end of the side surface portion (61a) toward the downstream side in the sheet delivery direction.Type: ApplicationFiled: October 10, 2011Publication date: May 10, 2012Applicant: KYOCERA MITA CORPORATIONInventor: Yuzo ONISHI
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Patent number: 6739778Abstract: Disclosed is a sheet transport device for use in an image forming apparatus in which one surface of a guide member and one surface of a first counterpart member define a first sheet transport path, and the opposite surface of the guide member and one surface of a second counterpart member define a second sheet transport path. The second counterpart member is pivotally supported on a main body of the image forming apparatus to be selectively set to a closed position for defining the second sheet transport path and an opened position for exposing an interior of the second sheet transport path. The guide member is pivotally supported on the main body of the image forming apparatus to be selectively set to a closed position for defining the first sheet transport path and a closed position for exposing an interior of the first sheet transport path. The sheet transport device has retaining means for retaining the guide member at the closed position.Type: GrantFiled: March 11, 2002Date of Patent: May 25, 2004Assignee: Kyocera Mita CorporationInventors: Masami Fuchi, Hideaki Kimata, Mitsuhiro Shibata, Tsuyoshi Koyanagi, Yuzo Onishi
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Patent number: 6658223Abstract: A cleaning device according to the present invention has first seals and a second seal adhered so as to partly overlap each other for sealing a space between a housing of the cleaning device and the surface of a photoreceptive member. The first seals include seal bases and a flocked sheet layered on the seal bases. The portion of the seal base where the second seal overlaps is made smaller in thickness than the portion of the seal base where the second seal does not overlap. Therefore, no step is formed in the overlapped portion, thereby preventing toner leakage.Type: GrantFiled: October 30, 2002Date of Patent: December 2, 2003Assignee: Kyocera Mita CorporationInventors: Ryoji Nishimura, Shinsuke Kawashima, Tsuyoshi Koyanagi, Satoru Yonemoto, Yuzo Onishi, Hironori Takahashi
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Publication number: 20030099480Abstract: A cleaning device according to the present invention has first seals 7 and a second seal 6 adhered so as to partly overlap each other for sealing a space between a housing 3 of the cleaning device and the surface of a photoreceptive member. The first seals 7 include seal bases 13, 14 and a flocked sheet 12 layered on the seal bases 13, 14. The portion of the seal base 14 where the second seal 6 overlaps is made smaller in thickness than the portion of the seal base 13 where the second seal 6 does not overlap. Therefore, no step is formed in the overlapped portion, thereby preventing toner leakage.Type: ApplicationFiled: October 30, 2002Publication date: May 29, 2003Inventors: Ryoji Nishimura, Shinsuke Kawashima, Tsuyoshi Koyanagi, Satoru Yonemoto, Yuzo Onishi, Hironori Takahashi
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Publication number: 20020141800Abstract: Disclosed is a sheet transport device for use in an image forming apparatus in which one surface of a guide member and one surface of a first counterpart member define a first sheet transport path, and the opposite surface of the guide member and one surface of a second counterpart member define a second sheet transport path. The second counterpart member is pivotally supported on a main body of the image forming apparatus to be selectively set to a closed position for defining the second sheet transport path and an opened position for exposing an interior of the second sheet transport path. The guide member is pivotally supported on the main body of the image forming apparatus to be selectively set to a closed position for defining the first sheet transport path and a closed position for exposing an interior of the first sheet transport path. The sheet transport device has retaining means for retaining the guide member at the closed position.Type: ApplicationFiled: March 11, 2002Publication date: October 3, 2002Applicant: Kyocera Mita CorporationInventors: Masami Fuchi, Hideaki Kimata, Mitsuhiro Shibata, Tsuyoshi Koyanagi, Yuzo Onishi